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Wire-rate packet processing and its energy saving for over 100 Gbps speed of line are the issues to resolve in optical packet switching. For that purpose, we have newly developed an electronic header processing unit for optical packets in which the 23-bit longest prefix matching (LPM) forwarding engine LSIs are embedded. This paper reports the successful experiment of electronic header processing...
In this article, we propose a concept of an "adaptable access system" as future access system architecture. First, current issues and trends in communications networks are shown from various points of view, to discuss essential items for a future access system. Next, to set the basic direction of research and development for physical network infrastructure, three visions in the design of...
In this paper, we propose an independent and adaptive link rate control for a 1Gbps/10Gbps hybrid PON, where the low power consumption 1Gbps transceivers are maximally used even when incoming traffic reaches the given threshold. We show effectiveness of our proposed method in terms of energy efficiency through simulation experiments.
Wireless/wired hybrid network offers a promising solution to future broadband access. Exploiting the potential of a hybrid network requires an integrated effort on network design and optimization. We discuss the inter-network traffic and intra-network traffic that commonly exist in an access network, and study to improve transmission efficiency for the two types of traffic. We propose a three-step...
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