LINEAR-DISPERSION DIVISION MULTIPLE-ACCESS FOR MIMO SYSTEMS  

作　　者：Deng Dan Lv Xingzai Zhu Jinkang 

机构地区：[1]PCN ＆ SS Lab, University of Science ＆ Technology of China, Hefei 230027, China

出　　处：《Journal of Electronics(China)》2008年第4期433-438,共6页电子科学学刊（英文版）

基　　金：the National Natural Science Foundation of China(No.60572066);863 Program of China(No.2006AA01Z266).

摘　　要：Comprehensive study on novel Linear-Dispersion Division Multiple-Access(LDDMA) for multi-user uplink Multiple-Input Multiple-Output(MIMO)systems is proposed.In the new multi-plexing scheme,each user’s information symbol is dispersed by a User-Specific Matrix(USM)both inspace and time domain and linearly combined at base-station side.And a simple random search al-gorithm,based on capacity maximization criteria,is developed to generate a bank of USMs.Simulationresults are presented to demonstrate the advantages of LDDMA.When the Bit Error Rate(BER)reaches 10–3,the performance gains are 3dB and 5dB,compared with Time-Division Linear DispersionCodes(TD-LDC)and BLAST,respectively.Comprehensive study on novel Linear-Dispersion Division Multiple-Access（LDDMA） for multi-user uplink Multiple-Input Multiple-Output（MIMO）systems is proposed.In the new multiplexing scheme,each user’s information symbol is dispersed by a User-Specific Matrix（USM）both in space and time domain and linearly combined at base-station side.And a simple random search algorithm,based on capacity maximization criteria,is developed to generate a bank of USMs.Simulation results are presented to demonstrate the advantages of LDDMA.When the Bit Error Rate（BER） reaches 10^–3,the performance gains are 3dB and 5dB,compared with Time-Division Linear Dispersion Codes（TD-LDC）and BLAST,respectively.

关 键 词：Multiple-Input Multiple-Output （MIMO） MULTIPLE-ACCESS Space-time codes Linear-dispersion codes 

分 类 号：TN929.53[电子电信—通信与信息系统]