Robust power allocation algorithm for analog network coding with imperfect CSI

作     者：ZHANG ChenSi GE JianHua LI Jing HU Yun 

作者机构：State Key Laboratory of Integrated Service Networks Xidian University 

出 版 物：《Science China(Information Sciences)》 (中国科学:信息科学(英文版))

年 卷 期：2014年第57卷第4期

页      面：124-133页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080402[工学-测试计量技术及仪器] 0804[工学-仪器科学与技术] 081001[工学-通信与信息系统] 

基　　金：supported by National Basic Research Program of China(973 Program)(Grant No.2012CB316-100) “111”Project of China(Grant No.B08038) National Natural Science Foundation of China(Grant Nos.61101144,61101145) Fundamental Research Funds for the Central Universities(Grant No.K50510010017) 

主　　题：analog network coding(ANC) outage probability two-way relay robust power allocation imperfect channel state information(CSI) 

摘      要：Power allocation promises significant benefits in wireless ***,these benefits depend on knowledge of the channel state information(CSI),which is hardly ***,robust algorithms that take into account such CSI uncertainties play an important role in the design of practical *** this paper,we formulate the power allocation problem as the maximum individual outage probability minimization subject to total power consumption for analog network coding(ANC)protocol of a two-way relay *** show that these problems can be cast as convex optimization ***-robust power allocation algorithm is first developed under the ideal assumption of perfect *** we introduce robust optimization methodology that accounts for the imperfect *** show that ignoring CSI uncertainties in our designs can lead to drastic performance *** the other hand,the proposed robust power allocation provides significant performance gain over non-robust power allocation and uniform power allocation in terms of overall system outage probability over a wide range of channel estimation *** work highlights the importance of the proposed robust algorithm in realistic two-way relaying networks.