双向放大转发中继链路的能效
收稿日期: 2016-01-04
网络出版日期: 2017-10-30
基金资助
国家自然科学基金资助项目(61401266, 61501289); 上海市自然科学基金资助项目(14ZR1415100); 上海市教育委员会科研创新资助项目(14ZZ096); 高等学校博士点专项科研基金资助项目(20133108120015, 20123108120017); “晨光计划”、“扬帆计划”项目(14YF1408900); 上海高校特聘教授(东方学者)计划资助项目
Energy efficiency of bidirectional amplify-and-forward relay links
Received date: 2016-01-04
Online published: 2017-10-30
陈芳芳, 王涛, 孙彦赞, 吴雅婷 . 双向放大转发中继链路的能效[J]. 上海大学学报(自然科学版), 2017 , 23(5) : 666 . DOI: 10.12066/j.issn.1007-2861.1762
In this paper, a three-node relay link with bidirectional data transmission is studied. Power consumption of both baseband and radio frequency circuits is taken into account. With an amplify-and-forward relay system and a given bit error rate, the influence of modulation rate on energy efficiency is analyzed. Minimum transmitted power of the radio freqency circuit is derived. An expression of energy efficiency is obtained for the case that the baseband circuit power is related to the modulation rate. The optimization problem is solved using a mathematical optimization method. The effect of modulation rate on energy efficiency is analyzed, and verified by simulation results.
Key words： amplify-and-forward; modulation rate; energy efficiency
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