X. Yin, A. Vyncke, G. Torfs, M. Verbeke, H. Chow, D. Suvakovic, Alex Duque, D. V. Veen, T. Ayhan, P. Vetter
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CBI: a scalable energy-efficient protocol for metro/access networks
This paper presents a scalable energy-efficient MAC/PHY protocol for building a metro/access network. The proposed cascaded bit-interleaving (CBI) protocol extends the previously reported bit-interleaving concept to a multi-level paradigm. Moreover, a 40Gb/s 3-level electrical duobinary based physical layer scheme has been proposed for cost and energy saving, especially for end terminals. We compared two implementation approaches in terms of optical budget and transmission penalties. The initial estimate from the proof-ofconcept full-custom ASIC design shows that an ultra-low power metro/access network can be realized.