双向放大转发中继链路的能效  

Energy efficiency of bidirectional amplify-and-forward relay links

作　　者：陈芳芳[1] 王涛[1] 孙彦赞[1] 吴雅婷[1] 

机构地区：[1]上海大学特种光纤与光接入网省部共建重点实验室,上海200444

出　　处：《上海大学学报（自然科学版）》2017年第5期666-673,共8页Journal of Shanghai University:Natural Science Edition

基　　金：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

摘　　要：研究了一个双向数据传输的3节点中继链路,在考虑基带和射频电路功耗情况的同时,利用放大转发中继协议,在误码率小于给定值时分析调制速率对能效的影响.推导了射频电路的最小发射总功耗,以及基带电路功耗与调制速率相关时能效性能的函数表达式.利用数学优化方法解决了构建的优化问题,分析了调制速率对能效的影响,并进行了仿真验证.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 bv simulation results.

关 键 词：能效 调制速率 放大转发 

分 类 号：TN925[电子电信—通信与信息系统]