典型文献
Deep Unfolding for Cooperative Rate Splitting Multiple Access in Hybrid Satellite Terrestrial Networks
文献摘要：
Rate splitting multiple access (RSMA) has shown great potentials for the next generation commu-nication systems. In this work, we consider a two-user system in hybrid satellite terrestrial network (HSTN) where one of them is heavily shadowed and the other uses cooperative RSMA to improve the transmission quality. The non-convex weighted sum rate (WSR) problem formulated based on this model is usually optimized by computational burdened weighted min-imum mean square error (WMMSE) algorithm. We propose to apply deep unfolding to solve the optimiza-tion problem, which maps WMMSE iterations into a layer-wise network and could achieve better per-formance within limited iterations. We also incor-porate momentum accelerated projection gradient de-scent (PGD) algorithm to circumvent the complicated operations in WMMSE that are not amenable for un-folding and mapping. The momentum and step size in deep unfolding network are selected as trainable parameters for training. As shown in the simulation results, deep unfolding scheme has WSR and conver-gence speed advantages over original WMMSE algo-rithm.
文献关键词：
中图分类号：
作者姓名：
Qingmiao Zhang;Lidong Zhu;Shan Jiang;Xiaogang Tang
作者机构：
National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China,Chengdu 611731,China;China Mobile(Jiangxi)Communications Group Co.,Ltd,Yichun 336000,China;School of Aerospace Information,Space Engineering University,Beijing 101416,China
文献出处：
引用格式：
[1]Qingmiao Zhang;Lidong Zhu;Shan Jiang;Xiaogang Tang-.Deep Unfolding for Cooperative Rate Splitting Multiple Access in Hybrid Satellite Terrestrial Networks)[J].中国通信（英文版）,2022(07):100-109
A类：
Unfolding,HSTN,shadowed,burdened,WMMSE,trainable
B类：
Deep,Cooperative,Rate,Splitting,Multiple,Access,Hybrid,Satellite,Terrestrial,Networks,splitting,multiple,access,RSMA,has,shown,great,potentials,next,generation,commu,nication,systems,In,this,consider,user,hybrid,satellite,terrestrial,network,where,one,them,heavily,other,uses,cooperative,improve,transmission,quality,convex,weighted,sum,WSR,problem,formulated,model,usually,optimized,by,computational,imum,mean,square,error,algorithm,We,propose,apply,deep,unfolding,solve,optimiza,which,maps,iterations,into,layer,wise,could,achieve,better,formance,within,limited,also,incor,porate,momentum,accelerated,projection,gradient,scent,PGD,circumvent,complicated,operations,that,not,amenable,mapping,step,size,selected,parameters,training,simulation,results,scheme,conver,gence,speed,advantages,over,original
AB值：
0.617664
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