Quantitative analysis of optical network unit sleep technique with maintained latency for asymmetric usage by residential users

The Journal of Engineering

Susumu Nishihara¹  Hiroko Nomura¹  Naoto Yoshimoto¹  Kenichi Suzuki¹  Naoki Miura²  Nobuyuki Tanaka² 

[1] NTT Access Network Service Systems Laboratories, NTT Corporation, Yokosuka, Kanagawa, Japan;NTT Microsystem Integration Laboratories, NTT Corporation, Atsugi, Kanagawa, Japan

关键词: residential user network;    downstream traffic;    power efficiency;    ONU;    optical transmitter;    quantitative analysis;    optical network unit sleep technique;    upstream traffic;    numerical simulation;    power-saving effectiveness;   

DOI  :  10.1049/joe.2013.0099

学科分类：工程和技术（综合）

来源: IET

【 摘 要 】

This study provides an insight into the effectiveness of an optical network unit (ONU) sleep technique, where a subcomponent of the ONU is powered down during the absence of input traffic. The approach contributes to the realisation of advanced power efficiency over a wide range of input throughputs in situations where downstream traffic exceeds upstream traffic in recent residential networks. A numerical simulation showed that power-saving effectiveness could be achieved for an Mbit/s downstream throughput without latency implications in the Tx sleep mode.

【 授权许可】

CC BY