Transmission and Distribution Systems for Compatible Broadband Subscriber Networks Upgrade

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概要

• 論文の詳細を見る

• Transmission and distribution systems are investigated for application in future fiber optic super-broadband and supermulti-channel subscriber loops. Gradual upgrading is considered so that future systems can keep compatibility with existing systems. First, time frame and strategies for subscriber loop upgrade are overviewed and assumptions for evolution of broadband multimedia distribution systems are discussed. It is suggested that upgrading to super-high definition(SHD)quality multimedia is desirable. Next, some examples of extra-auxiliary picture(EAP)formats are discussed to show the possibility of improving upgradability and compatibility by using extrachannels. Then multiplexing and channel selecting systems are investigated for economical realization of super-multi-channel distribution and flexible channel selection, and hybrid multiplexing(HMUX)and a trams-selector(T-SEL)are proposed. Finally, the efficiencies of HMUX and T-SEL are discussed by using numerical examples. Although broadband down streams are mainly considered, other streams such as IP traffics can be accommodated in the distribution systems investigated in this paper.

• 社団法人電子情報通信学会の論文
• 2001-12-01

著者

• Ito Katsuyoshi

  The Department Of Information And Com Puter Sciences Toyo University

• TAKASAKI Yoshitaka

  the Department of Electrical and Electronic Engineering, Toyo University

• Takasaki Y

  Toyo Univ. Kawagoe‐shi Jpn

• Takasaki Yoshitaka

  The Department Of Electrical And Electronic Engineering Toyo University

• ITO Katsuyoshi

  the Department of Information and Com puter Sciences, Toyo University

関連論文

• Transmission and Distribution Systems for Compatible Broadband Subscriber Networks Upgrade
• B-8-26 Improving the Efficiency of Multipled Block Codes for Hunting-Free Reframing
• B-8-4 Experiment of Asynchronous Multiplexing using Hunting-Free Frames
• B-8-27 Modeling of Upgradable Multiplexing Components for Broadband Ubiquitous Networks-part II
• B-8-15 Modeling of Upgradable Multiplexing Components for Broadband Ubiquitous Networks

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