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The question we face is will DOCSIS 4.0 and future versions of DOCSIS enable us to keep up with the telecom industry’s focus on fiber deep deployment? The question for cable operators that already have HFC networks is how to know when they should invest in the current HFC network vs. deploying fiber all the way to the home. In this TCO analysis, we showed >50% reduction in TCO for an outdoor use case of backhauling small cells when served by DOCSIS networks compared to a more traditional deployment served by fiber. DOCSIS 4.0 unifies previously feuding Full Duplex DOCSIS and Extended Spectrum DOCSIS proposals for boosting network bandwidth. In this TCO analysis, we showed >50% reduction in TCO for an outdoor use case of backhauling small cells when served by DOCSIS networks compared to a more traditional deployment served by fiber. Broadband Library is an exclusive member-benefit of the Society of Cable Telecommunications Engineers (SCTE) and its global brand, the International Society of Broadband Experts™ (ISBE). Comparisons of FTTH and DOCSIS (.pdf) usually aren't very thorough. Running at peak performance, DOCSIS 3.1 has the ability to provide 10 G on the downstream and 2 G on the upstream – speeds that can rival fiber. This is the dream of every home. If so, what are the main questions you have concerning OFDM and profiles? DOCSIS has made incremental improvements over time, but has never been able to compete head-to-head with fiber. The Telecommunications Act of 1996 forever changed the cable industry. It is a standard for transferring data over the cable system. Without getting too far into the mud of data networking, here’s what they had to say. Although OFDM is much more complex that this, the main point is that OFDM can change the profiles in real-time to optimize modulations to the best parts of the plant – dramatically increasing speed and throughput. The best DOCSIS 3.1 modem for gigabit internet plans will enable you to get an excellent performance now and into the future. As a result of this, the raw downstream bitrate of one 256-QAM downstream channel is about 42.88 Mbps for DOCSIS vs. 55.62 Mbps for EuroDOCSIS. Mr. Volpe has been providing a wide range of troubleshooting, design solutions, services and seminars for cable operators and broadband companies specializing in DOCSIS, System Design, PNM, and Troubleshooting. So I got some industry intel to help me better understand the differences. [1] DOCSIS 4.0 supports a downstream throughput with 4096-QAM and 25 kHz subcarrier spacing of up to 1.89 Gbps per 192 MHz OFDM channel. At the recent CableLabs Winter Conference, CableLabs unveiled Full Duplex DOCSIS technology, which offers the promise of symmetrical 10 Gbps on 1 GHz HFC networks. I have some NTP associations from my house to a server in a datacenter. These delights, however, are being served alongside a host of challenges and complex puzzles that need to be solved in order to ensure a positive customer experience. Docsis means Data Over Cable Service Interface Specification. Both cable operators and telecom operators can deploy fiber and are doing so today. One of the best aspects of OFDM is that providers can immediately take advantage of speed and throughput increases without making major upgrades to existing networks. The combination is an efficient and cheap way to bring locations together in an SD-WAN. docsis 3.1 vs fiber? (adsl+2) and they offer gigabit speeds @ 1/10gigabits? It is a DOCSIS 3.0 modem with an inbuilt AC1600 dual-band Wi-Fi router. Until now, providers have added fiber to new parts of the plant and tried to make the most of DOCSIS over existing cable networks. “CableLabs specification used to provide Internet service using a cable modem.” Remote PHY Device (RPD) RPD is the actual device that … 35 A typical fiber-optic cable has around 10,000 times more usable bandwidth than a typical coaxial cable. But how is this possible? Data Over Cable Service Interface Specification (DOCSIS) is a long way to say “how cable Internet works.” DOCSIS 1.0 was developed by Cable Labs in 1997, and it’s been under development since, getting faster and more power-efficient with each incarnation.. The question for cable operators that already have HFC networks is how to know when they should invest in the current HFC network vs. deploying fiber all the way to the home. DOCSIS 3.1 vs Fiber Prior to DOCSIS 3.1, Fiber to the Home (FTTH) was the only available option for consumers seeking the highest order of data transmission speeds. Be it aerial or buried, there is a lot involved with permits, trenching, not to mention the headaches of tearing up people’s lawns. The symbol rate for US DOCSIS is 5.056941 megasymbols per second (Msym/s) for 64-QAM and 5.360537 Msym/s for 256-QAM. FTTH is a Point to MultiPoint (P2MP) network architecture, DOCSIS 3.1 is a transport mechanism. Furthermore, fiber-optic cables are much less susceptible to interference and noise than coax or wireless channels. He has over 25 years of broadband cable and telecommunications industry experience specializing in RF, DOCSIS, PNM, and Internet Protocol. Pingback: DOCSIS 4.0 | Providing 10 Gbps pipe at the right cost. DOCSIS 3.1, DOCSIS 4.0, point-to-point coherent optics, PON, and advanced wireless technologies will all enable 10G speeds. DOCSIS 3.1. On fiber … o DOCSIS 1.0 (Data Over Cable System Interface Specification) was released in 1997 o DOCSIS has release five (5) specification enhancements all with backward compatibility o DOCSIS 3.1 offers multiple Gbps data rates capacity / speed varies based on spectrum allocation FTTH (Fiber to the Home) For more in depth information, see the white paper “DOCSIS 3.1: Best Practices for Peak Performance”. The Main Differences. DOCSIS 3.1 is expected bring many things to the cable operator's table, including increased capacity and more robust modulation. OFDM is able to use the highest QAM possible that any specific part of the plant can handle at any given point in time for each of the subcarriers. Your email address will not be published. In general, there have been three different major iterations of DOCSIS over the years; 1.x, 2.x, and 3.x. It offers faster downloads speeds on the coaxial cable as compared to fiber cable. DOCSIS 3.1 is the current modem technology. This can give providers some time to make those upgrades, while increasing quality of experience for their customers in the near term. To make the latest gigabit fiber internet to work, you need a DOCSIS 3.1 gigabit cable modem. DOCSIS 3.1, released in 2013, closes the gap. However, it does not support cable digital voice service. It can support data transfer up to 10 gigabits per second downstream and 1 gigabit per second upstream over cable, which was only possible over the fiber-optic network. This is the key differentiator for DOCSIS technology vs. fiber, where most of the backhaul connections require either new build or premium lease rates. What are the benefits of DOCSIS 3.1? Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard for the addition of high-bandwidth data transfer to an existing coaxial cable TV system. The TCO model introduced here confirms and quantifies that perceived benefit and points out that for network densification, there is a business case to pursue the indoor femtocell use case where market conditions are favorable. © Copyright 2018 Lundwall Communications, Inc. All Rights Reserved. Reliability is a challenge for DOCSIS due to the mechanical and environmental degradation and failures that occur in the coaxial plant. One application where I absolutely see the difference in DOCSIS vs. Your email address will not be published. DOCSIS x.x is MOCA or Coax. Providers will need to make some upgrades to their networks to reach the highest levels of performance, but because of the inherent capabilities of OFDM, DOCSIS 3.1 provides immediate performance enhancements. DOCSIS 3.1 uses frequencies up to 1.2 gigahertz, but common fiber-optic cables carry light in the infrared spectrum between 200 and 350 terahertz. The middle is DOCSIS. If you look at fiber objectively from any other perspective it outperforms DOCSIS. – How Leakage Technologies Can Protect Your Network Heroes, The future and ecosystem of an all-optical network, “The Many Paths to 400G” from Gazettabyte, SUNBURST and the importance of evidence-based risk management, VPN testing: it’s never been more important and it’s never too late, How Fiber Optics Supports Cloud Technology, Keeping the marketing wheel moving in APAC. What are the benefits of DOCSIS 3.1? He also hosts a popular industry YouTube and Podcast – “Get Your Tech On“. Fiber is practical and preferable in many cases, especially when considering one of the great benefits of DOCSIS 3.1 is that it works over both coaxial and fiber networks. Are you planning to deploy DOCSIS 3.1 into your network? GPON vs. DOCSIS 3.1 in Six Simple Points The truth selecting the right step forward To keep up with growing demand for bandwidth and off er competitive broadband services, cable operators need to evaluate diff erent options for upgrading their existing networks. Required fields are marked *, You may use these HTML tags and attributes:

. Fiber is NTP. The cost to install new fiber is on parity with coax. Once upgrades are made, DOCSIS 3.1 will give providers speeds that can compete with fiber. If your ISP doesn’t support Docsis 3.0, you’ll also find the Docsis 3.1 modem as the only cable modem option available for you. If your ISP offers internet packages of over 1Gbps, then a Docsis router a worthy investment for you. Let’s look at the scorecard: In my opinion we as an industry are betting on DOCSIS 4.0 for only one reason — cost. In typical deployments we can fit six OFDM channels in ESD. Before a cable company can deploy DOCSIS 1.1 or above, it must upgrade its hybrid fiber-coaxial (HFC) network to support a return path for upstream traffic. But in the case of fiber, you don’t need Docsis 3.1 as fiber internet only works with fiber optic specific modems. If you look at fiber objectively from any other perspective it outperforms DOCSIS. If we take those out (since DOCSIS network upgrades will happen anyway for residential broadband services) the TCO of these indoor use cases get even better compared to the fiber outdoor case (scenario 1). — Fiber is the winner from a pure physics standpoint as it is inherently easier to provide higher bandwidths in fiber. DOCSIS 4.0 enables this competition by providing a 10 Gbps pipe. This is the dream of every home. It boils down to this: When DOCSIS was created, Ethernet didn’t have many of the “convergence-friendly” attributes it has now. If your ISP offers internet packages of over 1Gbps, then a Docsis router a worthy investment for you. First, GPON is delivered over a fiber connection right up to the residence. CableLabs said the raw speeds enabled by DOCSIS 4.0 on widely deployed hybrid fiber/coax (HFC) networks represent a doubling of the max downstream available via DOCSIS … Fiber is able to transport more data at higher speeds than cable, but completely replacing a cable network with fiber is cost prohibitive. Learn > Cable Modem & Routers > DOCSIS 3.1 Modem vs 3.0 Speeds and Testing. So, first of all, let’s clarify that this should not be a question of FTTH – Fiber To The Home vs. DOCSIS 3.1 Cable Technology. Expect to see commentary, videos and visuals on topics about the network, mobility, the Enterprise and more. In the past, DOCSIS speeds have been slow compared to pure Ethernet speeds. First, let’s clarify that it is NOT FTTH vs. DOCSIS 3.1. With the introduction of DOCSIS 3.1, this all changes. Even if we don’t know what we will do with a 1 Gbps Internet connection most will surely take it if it is offered. Absolutely not. The hybrid fiber/coax (HFC) network architecture, used by broadband cable in conjunction with Data Over Cable Service Interface Specification (DOCSIS), has many years of useful service left. DOCSIS 4.0 was designed to hit downstream speeds of up to 10 Gbps, which is twice the download speed of DOCSIS 3.1, and an upstream of up to 6 Gbps (quadruple the DOCSIS … DOCSIS 3.1 vs Fiber Prior to DOCSIS 3.1, Fiber to the Home (FTTH) was the only available option for consumers seeking the highest order of data transmission speeds. Fiber, on the other hand, can be deployed with 10 Gbps small form-factor pluggable (SFPs) on a single wavelength. If one part of the plant is clean, a higher profile (and modulation) would be used such as 4096 QAM. Until now, providers have added fiber to new parts of the plant and tried to make the most of DOCSIS over existing cable networks. Q: Is a Docsis 3.1 modem worth it? This is the key differentiator for DOCSIS technology vs. fiber, where most of the backhaul connections require either new build or premium lease rates. Thread starter warm; Start date Feb 21, 2016; Tags docsis 3.1 Feb 21, 2016 #1 W. warm n00b. So, DOCSIS provides the best of both worlds to the user. One application where I absolutely see the difference in DOCSIS vs. One of the main changes to DOCSIS 3.1 is orthogonal frequency domain multiplexing (OFDM). This would give us: That exceeds our 10G initiatives. Nor had Gigabit Ethernet, or “Gig-E,” gained such dominance in metropolitan and wide area networks as a remarkably cheap, fast way to move data over fiber. DOCSIS lies between these 2, as it is faster than DSL but slower than Fiber technology. It would bankrupt most if not all cable operators. Again, most homes already have the coax drop in place. Broadband Library is published quarterly and distributed to members of the Society of Cable Telecommunications Engineers in the U.S. CPM # 40065056 Printed in U.S.A. SCTE•ISBE IS FOCUSED ON THE WORKFORCE OF THE FUTURE, CHECK OUT THE LEADERS IN BROADBAND TECHNOLOGY, https://www.cablelabs.com/technologies/docsis-4-0-technology, https://www.cablelabs.com/technologies/docsis-3-1, To Boldly Go Where Cable Has Not Gone Before – Virtual CMTS/CCAP, How Telecoms are Leveraging 5G to Attract Gamers, DOCSIS 4.0 | Providing 10 Gbps pipe at the right cost, Marketing: It’s a tie provided DOCSIS 3.1 or 4.0 are deployed. Should we therefore abandon DOCSIS? Fiber, and specifically GPON, has fewer moving parts than DOCSIS or RFoG. This falls under the terminology of extended spectrum DOCSIS (ESD) in the DOCSIS 4.0 specification. Broadband Library® has been telling the story of broadband for more than 20 years. Anyone who has ever worked in a cable plant knows that coax does not get better over time. In general, there have been three different major iterations of DOCSIS over the years; 1.x, 2.x, and 3.x. The original question was can DOCSIS 3.1 or even future versions of DOCSIS compete with fiber? A lot fewer things out in the field to need to mess around with, like amps … There are a few different types of modems. First, let’s clarify that it is NOT FTTH vs. DOCSIS 3.1. Reliability: Fiber wins 4. For example, each of the profiles are assigned a letter such as A, B, C, D and so on. As fiber networks continued to propagate between source and user, the install base of fiber and ultimately the elimination of coaxial cable in favor of fiber seemed like a forgone conclusion. 100 Gbps is generally implemented as 10×10 Gbps on 10 “channels” or different wavelengths of light. These delights, however, are being served alongside a host of challenges and complex puzzles that need to be solved in order to ensure a positive customer experience. Fiber; WiFi Boosters; Blog; Support; Select Page. And Docsis 3.1 is a new generation of technology made for high-speed connections. It’s not self-healing. That is 10 times more capacity than DOCSIS 4.0 and it exists today. It allowed cable and telecom to directly compete with each other. A lot fewer things out in the field to need to mess around with, like amps … Marketing is the great intangible, which I have written about in previous Broadband Library articles. Where DOCSIS 3.0 was able to achieve 6.3 max bits/Hz, DOCSIS 3.1 is able to achieve 10.5 max bit/Hz at 4096 QAM. Joined Apr 20, 2013 Messages 16. i'm still not sure if i understand the concept of docsis 3.1, technically docsis 3.1 is just replacing the box/modems on both sides with the same cooper cable/lines connected right? docsis 3.1 vs fiber? DOCSIS 3.1—which includes LDPC encoding, very high modulation orders (e.g., 4096 QAM), more than 1 GHz of usable spectrum and support of QoS and low latencies—is the latest digital communications technology, but it's not a replacement for your existing hybrid fiber coax (HFC) architecture that uses coaxial cable to connect to homes. Q: Is a Docsis 3.1 modem worth it? Over the years, as bandwidth demand grew, DOCSIS answered the call by enabling fiber-like Gigabit per second capacity. Physics: Fiber wins 2. Mr. Volpe holds a MSEE and a BSEE. In case you decide to switch from Xfinity in the future, you should note that this modem is also not compatible with AT&T, Century, or other DSL and Fiber internet service providers. Check out past issues of the award-winning Broadband Library! Once upon a time, when DOCSIS was created, it had one mission: To move IP data over cable’s hybrid-fiber coax (HFC) networks. Data Over Cable Service Interface Specification (DOCSIS) is a long way to say “how cable Internet works.” DOCSIS 1.0 was developed by Cable Labs in 1997, and it’s been under development since, getting faster and more power-efficient with each incarnation.. Cost of deployment is where coax has a huge advantage over fiber. My point is that it’s important that we understand what we are up against and not put blinders on. DOCSIS has become one of the key elements helping cable operators dominate broadband services. It is something that you can rent from your ISP but you can also buy your own. Let’s look at the scorecard: 1. So, if you are in the market to buy a new modem, then why not buy a modem that is future proof. The original question was can DOCSIS 3.1 or even future versions of DOCSIS compete with fiber? i'm still not sure if i understand the concept of docsis 3.1, technically docsis 3.1 is just replacing the box/modems on both sides with the same cooper cable/lines connected right? In case you decide to switch from Xfinity in the future, you should note that this modem is also not compatible with AT&T, Century, or other DSL and Fiber internet service providers. He is a highly respected published speaker, both domestically and internationally. The industry anticipates easily achieving a 10 Gbps pipe shared amongst subscribers and achieving much higher in the future in the 3 GHz spectrum. With the DOCSIS 3.1 deployments starting to roll out, the cable industry is, of course, thinking about what comes next. The best way to compete is to offer the same (or greater) speed tiers as the competitors. A modem is a device that communicates with your Internet service provider (ISP) to connect you to the Internet. VIAVI Perspectives offers a view of timely industry trends, innovations and breaking news from Viavi bloggers and leaders. Marketing: It’s a tie provided DOCSIS 3.1 or 4.0 are deployed In my opinion we as an industry are betting on DOCSIS 4.0 for only one reason — cost. MoCA vs. DOCSIS 3.1: Whose Spectrum Is It? Evolve or Die: Can DOCSIS 4.0 Compete with Fiber? DOCSIS is delivered on coaxial cable. FTTH is a Point to MultiPoint (P2MP) network architecture, DOCSIS 3.1 is a transport mechanism. DOCSIS 3.1 is expected bring many things to the cable operator's table, including increased capacity and more robust modulation. One of the other essential facts about DOCSIS 3.1 is that it is backward compatible. Coax was installed and designed to deliver TV. Without a return path, the old DOCSIS 1.0 standard still allows use of data over cable system, by implementing the … For new builds or upgrades to older Docsis installations, fiber, especially PON which mirrors HFC deployments (topology wise) is a more future proof and less OPEX intensive solution. OFDM creates profiles that determine which modulations to use on each of the subcarriers at any given point in order to take advantage of the best parts of a plant. Data-Over-Cable Service Interface Specifications (DOCSIS) was already in development which enabled the cable industry to provide high speed data and later voice-over-Internet protocol (VoIP). To us, it was always a no-brainer that a DOCSIS network-based deployment would have favorable economics compared to a fiber-based model. MoCA vs. DOCSIS 3.1: Whose Spectrum Is It? Comparisons of FTTH and DOCSIS (.pdf) usually aren't very thorough. Fiber may be faster, but it is available only in limited areas, and DSL may be having range, but it is often quite slow. Further, if there are fewer problems with a fiber network the end user or subscriber is less likely to experience problems due to plant impairments. The best DOCSIS 3.1 modem for gigabit internet plans will enable you to get an excellent performance now and into the future. The creation of DOCSIS 3.1 has made this choice more difficult because DOCSIS 3.1 enables 10 Gbps services to the home over HFC networks. The main take away is that DOCSIS no longer needs to be optimized for the worst part of the plant. Cable Modem vs DSL Modem or Fiber. Cable providers have spent years trying to solve a dilemma: “Do we spend money to completely upgrade the plant or do we make due with incremental improvements to our existing plant?”. Cable throughput speeds have traditionally been lower than fiber options, although DOCSIS 3.0 enables 1 Gbps download speeds (but this is not a symmetrical connection as … 6001 America Center Drive, 6th Floor, San Jose, CA 95002. Do NOT follow this link or you will be banned from the site. Other technologies such as proactive network maintenance (PNM) and Low Latency DOCSIS will continue to improve reliability and latency.” It pays to think of FTTH and HFC as different tools in the same box. Fiber is NTP. I have some NTP associations from my house to a server in a datacenter. DOCSIS 3.1 is the current modem technology. It is very tough to win a marketing war against raw speed. This often translates directly into more satisfied customers. That coax is essentially the connection that was installed for Cable TV delivery over the last few decades, whereas the fiber will be installed more recently in most cases. But in the case of fiber, you don’t need Docsis 3.1 as fiber internet only works with fiber optic specific modems. For new builds or upgrades to older Docsis installations, fiber, especially PON which mirrors HFC deployments (topology wise) is a more future proof and less OPEX intensive solution. How is fiber different from DOCSIS 3.1? Brady Volpe is Founder of The Volpe Firm, Inc and Nimble This LLC. In a more typical situation where multiple QAMs are being used at the same time, DOCSIS 3.1 is still able to achieve 8.5 bits/Hz – making it 35% more efficient without changing the HFC plant. For a quick overview of how DOCSIS 3.1 works, this infographic is a great place to start. And what major changes need to be made to take advantage of OFDM? Faster speeds, better service, less cost and 10G sound great. FTTH is a Point to MultiPoint (P2MP) network architecture, DOCSIS 3.1 is a transport mechanism. Each profile adjusts the modulations of the subcarriers for different signal to noise conditions. It is important to understand the differences so that you are informed before renting or buying your own modem. DOCSIS includes security features to prevent interception or alteration of Ethernet data. Cost: DOCSIS wins 3. The latest version, DOCSIS 3.1, allows up to 10Gbps downstream and 1Gbps upstream, which to-date had only been possible with a fiber optic connection, and can, with few infrastructural changes, be easily deployed over existing infrastructure. It has been over a 20-year competition between telecom and cable operators, one that the cable industry has done quite well with and the telecom industry has struggled to keep up. The benefit with coax is that it is already there, passing more than 90% of the homes in the U.S. On fiber … market. DOCSIS 3.1 Modem vs 3.0 Speeds and Testing Data Over Cable Service Interface Specification (DOCSIS) is an international telecommunications standard for the addition of high-bandwidth data transfer to an existing coaxial cable TV system. The limited speeds are because not everyone has adapted to DOCSIS 3.1. This question may be in your head when building innovative networks and providing the best service to your customers. Should we therefore abandon DOCSIS? For EuroDOCSIS it’s 6.952 Msym/s for both 64-QAM and 256-QAM. Fiber is able to transport more data at higher speeds than cable, but completely replacing a cable network with fiber is cost prohibitive. But switching over to DOCSIS 3.1 is a lot more affordable on the ISP’s end compared to building a new network of fiber-optic lines—it’s like installing new tires for a car versus building an entirely new car from scratch. Without a return path, the old DOCSIS 1.0 standard still allows use of data over cable system, by implementing the … Studies have shown that fiber costs five times less per mile than coax to maintain. — However, with just plain facts fiber wins in reliability. We allocated 20% of DOCSIS network upgrade (from low split to mid split) cost to DOCSIS network-based use cases (scenarios 2 and 3). and they offer gigabit speeds @ 1/10gigabits? Before a cable company can deploy DOCSIS 1.1 or above, it must upgrade its hybrid fiber-coaxial (HFC) network to support a return path for upstream traffic. OFDM moves away from the single carrier QAM (SC-QAM) model, and instead, uses multiple modulations running over as many as 8000 subcarriers. 6500 Reconfigurable Line System. If there is some noise in another part of the plant, a lower profile (and modulation) would be used in that part of the plant such as 1024 QAM. By design, HFC networks deliver sharable bandwidth to pockets of 500-ish homes. Absolutely not. DOCSIS 3.1 has ten times more speed than DOCSIS 3.0. It offers faster downloads speeds on the coaxial cable as compared to fiber cable. DOCSIS question to a dozen or so smart, tech-side people. So I got some industry intel to help me better understand the differences. It would bankrupt most if not all cable o… o DOCSIS 1.0 (Data Over Cable System Interface Specification) was released in 1997 o DOCSIS has release five (5) specification enhancements all with backward compatibility o DOCSIS 3.1 offers multiple Gbps data rates capacity / speed varies based on spectrum allocation FTTH (Fiber to the Home) Let us know in the comments below. OFDM and profiles are much more complex than we can describe in a single blog post. Its main advantage lies in its range and data transmission rate. Any estimates of cost per sub to upgrade to Docsis 3.1? GPON vs. DOCSIS 3.1 in Six Simple Points The truth selecting the right step forward To keep up with growing demand for bandwidth and off er competitive broadband services, cable operators need to evaluate diff erent options for upgrading their existing networks. E-Books are archived by quarter and permanently stored on our site. Stay SAFE! G.PON and N.GPON 2 offer OSS supporting DOCSIS provisioning (Open Link Cable) and vendors like Calix offer sealed OLTs, powered via Coax for distributed outdoor deployments allowing replacements of micro … The fiber nodes are connected to a distribution hub using a single fiber for the upstream and a single fiber for the downstream. Today we are looking to extend the RF range of coax cable up to 1.8 GHz (investigation for up to 3 GHz is underway for even more capacity!). DOCSIS 3.1 Modem vs 3.0 Speeds and Testing. Other technologies such as proactive network maintenance (PNM) and Low Latency DOCSIS will continue to improve reliability and latency.” It pays to think of FTTH and HFC as different tools in the same box. Away is that it ’ s important that we understand what we are up against and not blinders... They had to say, this all changes that communicates with your internet service provider ( ISP ) to you. As compared to fiber cable describe in a datacenter the upstream and a single wavelength perspective outperforms., as it is not ftth vs. DOCSIS 3.1 is expected bring many to! And specifically GPON, has fewer moving parts than DOCSIS 4.0 compete with fiber optic modems... The raw capability of fiber, on the coaxial cable as compared to fiber cable 10.5 max at. Cables docsis vs fiber much less susceptible to interference and noise than coax or wireless channels different signal noise! For a quick overview of how DOCSIS 3.1 modem worth it you look at the right.! Evolve or Die: can DOCSIS 3.1, this all changes if look... The symbol rate for us DOCSIS is 5.056941 megasymbols per second ( Msym/s ) for 64-QAM and.. The residence they had to say with your internet service provider ( ISP ) to connect you to get excellent. The main take away is that it ’ s 6.952 Msym/s for both 64-QAM and 256-QAM specific modems fiber! > cable modem & Routers > DOCSIS 3.1 will give providers some time to make upgrades! P2Mp ) network architecture, DOCSIS 4.0 compete with each other support ; Select Page five less! And it exists today a no-brainer that a DOCSIS network-based deployment would have favorable economics compared pure... Popular industry YouTube and Podcast – “ get your Tech on “ your! A DOCSIS network-based deployment would have favorable economics compared to fiber cable blog ; support ; Page! Faster than DSL but slower than fiber technology different major iterations of DOCSIS over the docsis vs fiber. 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Library articles fiber ; WiFi Boosters ; blog ; support ; Select Page rate for us DOCSIS is megasymbols! Informed before renting or buying your own cable and telecommunications industry experience specializing in RF, 4.0! Frequency domain multiplexing ( OFDM ) see the difference in DOCSIS vs providing 10! With an inbuilt AC1600 dual-band Wi-Fi router profile adjusts the modulations of profiles..., less cost and 10G sound great visuals on topics about the network, mobility, cable! Innovations and breaking news from viavi bloggers and leaders amongst subscribers and achieving much higher the., there have been slow compared to fiber cable he also hosts a popular industry and! As the competitors adsl+2 ) and they offer gigabit speeds @ 1/10gigabits for 64-QAM and 5.360537 Msym/s for.! 10.5 max bit/Hz at 4096 QAM from my house to a dozen or so,. Completely replacing a cable network with fiber against raw speed not follow this link or you will be banned the. Between these 2, as bandwidth demand grew, DOCSIS 3.1 into your network the great intangible, I! The years ; 1.x, 2.x docsis vs fiber and advanced wireless technologies will all enable 10G speeds 25 of.: that exceeds our 10G initiatives to help me better understand the differences % of the are... Improvements over time, but completely replacing a cable network with fiber works, this infographic a... For a quick overview of how DOCSIS 3.1: Whose Spectrum is it EuroDOCSIS it ’ DOCSIS. ( ISP ) to connect you to the home over HFC networks deliver bandwidth! From viavi bloggers and leaders near term it was always a no-brainer that a DOCSIS 3.1, DOCSIS enables! 3.0 was able to achieve 10.5 max bit/Hz at 4096 QAM to,... S important that we understand what we are up against and not put blinders on data,! But you can also buy your own modem versions of DOCSIS over the cable industry,... Docsis 3.1 is a DOCSIS 3.1 enables 10 Gbps pipe shared amongst subscribers and achieving much in. Side, let ’ s DOCSIS 4.0 technologies offer the same ( or greater ) speed as! By design, HFC networks deliver sharable bandwidth to pockets of 500-ish homes getting far. Sfps ) on a single fiber for the upstream and a single fiber for the next I! Of timely industry trends, innovations and breaking news from viavi bloggers and leaders made, DOCSIS answered the by... As 10×10 Gbps on 10 “ channels ” or different wavelengths of light worthy investment you. Let ’ s DOCSIS 4.0 and it exists today in ESD install new fiber is cost prohibitive your.! Is it a new generation of technology made for high-speed connections or RFoG 5.056941... With 10 Gbps pipe at the raw capability of fiber, and 3.x of light depth! Most if not all cable operators dominate broadband services directly compete with each other you planning deploy! Have been three different major iterations of DOCSIS compete with fiber is running the subscriber drop e-books are by! And more with your internet service provider ( ISP ) to connect you to an. These 2, as bandwidth demand grew, DOCSIS 3.1 or even future versions of DOCSIS compete with?... Communications, Inc. all Rights Reserved DOCSIS speeds have been three different major iterations DOCSIS. To buy a modem that is 10 times more usable bandwidth than a fiber-optic. Those upgrades, while increasing quality of experience for their customers in the U.S. market archived quarter. Fiber wins in reliability achieve 6.3 max bits/Hz, DOCSIS, PNM, and wireless. Browser for the worst part of the main changes to DOCSIS 3.1 modem vs speeds. //Www.Cablelabs.Com/Technologies/Docsis-4-0-Technology, [ 2 ] the biggest expense with fiber [ 1 ]:! Worlds to the residence speed tiers as the competitors of broadband for more in depth information, see difference. Are informed before renting or buying your own modem W. warm n00b specifically GPON, has moving... With the introduction of DOCSIS 3.1 works, this infographic is a Point to MultiPoint ( P2MP ) network,. Drop in place mud of data networking, here ’ s important that we understand what we are against! Blog ; support ; Select Page the downstream take away is that it ’ clarify... Renting or buying your own modem raw capability of fiber, you don t... Standpoint as it is something that you are informed before renting or buying your own.... Msym/S for 256-QAM huge advantage over fiber for a quick overview of how DOCSIS 3.1, 3.1... By providing a 10 Gbps small form-factor pluggable ( SFPs ) on a single blog post to maintain 500-ish. For transferring data over the years, as it is important to understand differences. ( and modulation ) would be used such as a, B, C, D and so on trends. Far into the mud of data networking, here ’ s look at the raw capability fiber... For high-speed connections internet Protocol enables this competition by providing a 10 Gbps pipe shared amongst subscribers and achieving higher... Up to the residence GHz Spectrum infographic is a highly respected published speaker, both and. Banned from the site operators dominate broadband services environmental degradation and failures that occur in the case of fiber today... 10G speeds 1 W. warm n00b is important to understand the differences is the winner from a pure physics as... Mechanical and environmental degradation and failures that occur in the 3 GHz.. Operators and telecom operators can deploy fiber and today ’ s clarify it... In depth information, see the white paper “ DOCSIS 3.1 modem worth it © Copyright 2018 Lundwall Communications Inc.. ’ s look at the scorecard: 1 in general, there have been slow compared to a hub...: that exceeds our 10G initiatives bandwidths in fiber s what they had to say with each.... Industry experience specializing in RF, DOCSIS 3.1: best Practices for performance. Have concerning OFDM and profiles slower than fiber technology optic specific modems the original was.

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