非完美CSI下的全双工中继网络的能效谱效均衡  

Trade-off between energy efficiency and spectrum efficiency forfull-duplex relay network with imperfect CSI

作　　者：张茜 仇润鹤[1,2] Zhang Qian;Qiu Runhe(College of Information Science&Technology,Donghua University,Shanghai 201620,China;Engineering Research Center of Digitalized Textile&Fashion Technology,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学信息科学与技术学院,上海201620 [2]东华大学数字化纺织服装技术教育部工程研究中心,上海201620

出　　处：《计算机应用研究》2024年第1期242-247,共6页Application Research of Computers

基　　金：上海市自然科学基金资助项目(20ZR1400700)。

摘　　要：为优化非完美信道状态信息下的解码转发全双工中继网络的能效和谱效,提出了一种基于该网络模型的能效谱效均衡策略。通过构建能量效率和频谱效率的折中优化函数,将一个非凸的多目标优化问题转换为一个凸的单目标优化问题,利用求导法和拉格朗日乘子法求解在不同折中因子下的最优中继发射功率。仿真结果表明,可以通过改变折中因子来优化系统的能效和谱效值,获得最优能效和谱效的性能折中。In order to optimize the energy efficiency and spectral efficiency of decoded-and-forwarded full-duplex relay network in imperfect channel state information,this paper proposed an energy efficiency and spectral efficiency balancing strategy based on this network model.It could replace the non-convex multi-objective optimization problem to a convex single-objective optimization problem by constructing a compromise optimization function of energy efficiency and spectral efficiency.It used derivation method and Lagrange multiplier method to solve the optimal relay transmission power under different compromise factors.The simulation results show that changing the compromise factor can change the energy efficiency and spectral effectiveness of the system and obtain the performance tradeoff of energy efficiency and spectrum effectiveness.

关 键 词：非完美信道状态信息 全双工 能量效率 频谱效率 性能折中 

分 类 号：TN925[电子电信—通信与信息系统]