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Japan: The need for speed October 2, 2006

Posted by Jasper in broadband, Costing, NGN, Regulation.

Japanese incumbent NTT Group plans to build a 10-Tbit/s optical backbone network to cope with the capacity demands of a growing FTTH and high-speed DSL customer base. The carrier’s growth in high-speed broadband connections is putting its current 1-Tbit/s backbone under strain. NTT says it needs to step up from its current DWDM backbone, which multiplexes 10-Gbit/s signals, to a 10-Tbit/s network that can support multiple 100-Gbit/s channels because “data traffic has been doubling every year due to the rapid spread of broadband access.” Most of NTT’s broadband customers have at least 50-Mbit/s connections. See article in Lightreading for more information.

With greater and greater bandwidth and increasingly more greedy data applications the core network backbone must adapt. From a cost modelling perspective this can only mean one thing: the relative cost of a voice interconnect must be declining. This is particularly the case when considering the cost of a forward-looking network, where voice and data services are fully integrated.



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