典型文献
Markovian Cascaded Channel Estimation for RIS Aided Massive MIMO Using 1-Bit ADCs and Oversampling
文献摘要：
A reconfigurable intelligent surface (RIS) aided massive multiple-input multiple-output (MIMO) system is considered, where the base station employs a large antenna array with low-cost and low-power 1-bit analog-to-digital converters (ADCs). To compensate for the per-formance loss caused by the coarse quantization, oversampling is applied at the receiver. The main challenge for the acquisition of cascaded channel state information in such a system is to handle the distortion caused by the 1-bit quantization and the sample correlation caused by oversampling. In this work, Bussgang decomposition is applied to deal with the coarse quantization, and a Markov chain is developed to char-acterize the banded structure of the oversampling filter. An approximate message-passing based algorithm is proposed for the estimation of the cascaded channels. Simulation results demonstrate that our proposed 1-bit systems with oversampling can approach the 2-bit systems in terms of the mean square error performance while the former consumes much less power at the receiver.
文献关键词：
中图分类号：
作者姓名：
SHAO Zhichao;YAN Wenjing;YUAN Xiaojun
作者机构：
National Key Laboratory of Science and Technology on Communica-tions,University of Electronic Science and Technology of China,Chengdu 611731,China
文献出处：
引用格式：
[1]SHAO Zhichao;YAN Wenjing;YUAN Xiaojun-.Markovian Cascaded Channel Estimation for RIS Aided Massive MIMO Using 1-Bit ADCs and Oversampling)[J].中兴通讯技术（英文版）,2022(01):48-56
A类：
B类：
Markovian,Cascaded,Channel,Estimation,RIS,Aided,Massive,MIMO,Using,Bit,ADCs,Oversampling,reconfigurable,intelligent,surface,aided,massive,multiple,input,output,considered,where,station,employs,large,antenna,array,low,cost,power,bit,analog,digital,converters,To,compensate,loss,caused,by,coarse,quantization,oversampling,applied,receiver,main,challenge,acquisition,cascaded,state,information,such,handle,distortion,sample,correlation,In,this,work,Bussgang,decomposition,deal,chain,developed,char,acterize,banded,structure,filter,An,approximate,message,passing,algorithm,proposed,estimation,channels,Simulation,results,demonstrate,that,our,systems,can,approach,terms,mean,square,error,performance,while,former,consumes,much,less
AB值：
0.63376
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
