Autumn 2019 - Optical Connections Magazine


fibre extension? Just connect the fibre in the basement and it is automatically distributed to every home in the building, meaning FTTH and MoCA are complimentary and not competitors.” The Alliance has developed a product called MoCA Access 2.5 which interfaces between external fi bre and in-building coax. Gelphman says, “Right now we’re at 2.5Gbps down and 2Gbps up. We are working on MoCA Access 3.0 which among many things will be capable of 10 Gigs symmetrical.” He adds, “The operators want 1 Gbps and we actually have MoCA Home 3.0. We have the spec approved for 10 Gbps in the home, but first we’ve got to get 10 Gbps to the home! So, when that happens and MoCA 3.0 is ready, we will already have 10 Gbps in the home. That seems like a lot right now, but everyone grows into their bandwidth.” As for product availability, Zong says Luster is currently working on a volume product for MoCA 2.5 Access. He says, “It’s almost done and it will be available this autumn. 2.5Gbps will be the throughput at the user level. The number that MoCA

gives is the number the user actually gets.” Of course, MoCA could be seen as a competitor to FTTH and there could be some resistance from the FTTH lobby. However, Gelphman says this is not so, particularly so far as operators are concerned. He says, “Any of the telco’s see us as a partner rather than a threat. For long -haul and to the building or the home, they will use fibre. From what we hear, it’s not about them wanting to shorten the fibre loop, it’s about getting to the unit. Every customer they talk to says it’s expensive and you’ve got to tear down half the building.” Indeed, MoCA now counts Vodafone among its members, the operator having joined the Alliance within the last 12 months. Proof, were it needed, that MoCA is taking off , is evidenced in the continuing progress of Sweden-based InCoax, which is currently looking to issue another tranche of shares, having undergone expansion and has this year received orders for it’s In:xtnd offering from Switzerland, Germany and Sweden.

even DOCSIS 3.1 cannot do the job, because upstream it uses two separated frequency bands. Upstream and downstream share the same spectrum and so throughput is dynamically adjusted depending on the traffic pattern, meaning both the upstream and downstream capacity is changing, depending on the actual traffic. With MoCA, if you need more upstream, you get it, if you need more downstream, you get it.” There is of course another reason why MoCA might be used in favour of an alternative technology to get high speed broadband into individual dwelling units, and that is the age of a building. Zong says, “FTTH is nice, if you can do it. The problem is that in very old MDU’s of the sort you get in say, Paris, drilling through walls is not acceptable. No-one would want them to be wired with new fibres, but over the last 30 years or so, CATV has become very popular and so a lot of cables are already there. So in these cases, why bother to rewire the building with fibre when you can get the same bandwidth with the MoCA

University of Bristol Job Vacancies Research Associate • Senior Research Associate • Research Fellow Smart Internet Lab - High Performance Networks Research Group

Post Specification The High Performance Networks (HPN) Research Group is looking for skilled and enthusiastic researchers to contribute and lead experimental research with focus on the development and application of advanced optical networking technologies/and or optical interconnections in distributed systems for 5G, beyond 5G, data centre and high-performance computing and support the physical layer activities of ambitious UK and European projects. The HPN Research Group is part of the Smart Internet Lab at the University of Bristol and has access to one of the largest and most illustrious

test-bed facilities in Europe, including the public 5GUK Test Network ( and the National Dark Fibre Infrastructure ( Researchers will be given access to the experimental platforms and will work with experts in FPGA programming, optical networks control and data plane, software-defined networks, AI for networks, and orchestration to vertically support the research and help shape the future together.

Current Vacancies Research Associate or Senior Research Associate in FPGA and embedded systems, with application to network system & sub-systems Research Associate/Senior Research Associate/Research Fellow in Software Defined Network & Network Virtualization, HPN Senior Research Associate/Research Fellow in Software Defined Network & Network Function Virtualisation for Quantum Key Distribution Networks

For more information please visit Research Vacancies in

Informal enquiries Please visit TOUCAN booth during the ECOC exhibition (stands 503-504) for an informal chat or submit your query to:

Prof. Reza Nejabati Prof. Dimitra Simeonidou

Dr George Kanellos Dr Emilio Hugues-Salas


ISSUE 18 | Q3 2019

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