Adaptive modulation in MIMO system under power and QoS constraints

被引：0
|
作者：
Hu, Jie [1 ]
Xie, Xianzhong [2 ]
Huang, Shuangping [3 ]
机构：
[1] South China Agr Univ, Coll Engn, Guangzhou 510642, Guangdong, Peoples R China
[2] Chongqing Univ Posts & Telecommun, Key Lab Mobile Commun, Chongqing 400065, Peoples R China
[3] South China Univ Agr, Engn Coll, Guangzhou 510642, Peoples R China
来源：
2007 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEMS; VOL 2: SIGNAL PROCESSING, COMPUTATIONAL INTELLIGENCE, CIRCUITS AND SYSTEMS | 2007年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
A bit loading and power allocation algorithm for multiple-input multiple-output (MIMO) systems under average transmit power and QoS constraints is proposed. The truncated right unitary matrix as precoder at transmitter and truncated left unitary matrix as decoder at receiver which are obtained by singular value decomposition (SVD) choose variable eigen-subchannels to carry Bell Laboratories Layered Space-Time (BLAST) codes with variable layers. We compare the average spectral efficiency (ASE) of our scheme with the other two adaptive modulation (AM) systems-continuous rate (CR) system and instantaneous power constraint (lPC) system. Performance is investigated by simulation resullts.
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收藏
页码：180 / +
页数：2
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