基于时分多路接入自适应休眠的低功耗DOCSIS上行发射器  

An adaptive sleep low power architecture based on TDMA mechanism for DOCSIS upstream transmitters

作　　者：郭艳飞[1] 王沁[1] 宋丽华[1] 杜立国[1] 

机构地区：[1]北京科技大学信息工程学院,北京100083

出　　处：《高技术通讯》2008年第9期900-908,共9页Chinese High Technology Letters

基　　金：863计划(2006AA09Z115);北京市科技产业化(D0306008000091)资助项目

摘　　要：针对 DOCSIS 上行发射器的高功耗问题,通过建立 DOCSIS 上行信道多电缆调制解调器(CM)突发传输和功耗模型,提出了一种基于时分多路接入(TDMA)方式接入自适应休眠的低功耗上行发射器的设计方法。典型网络环境下的实验结果表明,所提出方法能使 DOCSIS 上行发射器降低51.37%的功耗。该低功耗 DOCSIS 上行发射器已经成功应用于符合 EuroDOCSIS1.1规范的支持双向有线电视点播的 CM SOC 平台中,并表现出优良的低功耗性。To reduce the high power consumption of DOCSIS upstream transmitters, the burst transmission and the power consumption for multi-cable modem （CM） systems were modeled. Based on the proposed models, an adaptive sleep low power VLSI architecture for DOCSIS upstream transmitters was designed. The test results show that 51.73 % of the power of a upstream transmitter will be reduced by the proposed architecture under the typical network environment. The proposed low power transmitter was successfully integrated in a CM （system on chip, SoC） platform, which supported the two-way digital cable （TV-on-demand, TOD）, and demonstrated excellem low power characteristics.

关 键 词：电缆数据服务接口规范(DOCSIS) 上行发射器 自适应休眠 电缆调制解调器(CM) 

分 类 号：TN943.6[电子电信—信号与信息处理]