摘要
应用贪心算法提出了一种次最优ＭＣ－ＣＤＭＡ检测机。仿真结果表明，与传统检测机比较，它据有次最优的性能，但结构比最优检测机简单。
The multicarrier CDMA (MC-CDMA) is a novel digital modulation and multiplexingtechnique. Its performance is limited by multi-access interference (MAI). The optimum detector for MCCDMA is based on the maximum likelihood sequence estimation (MLSE). However its complexity increasesexponentially with the number of the users. To reduce its computational complexity, a near optimum MCCDMA detector based on Greedy Algorithm (GA) is studied. The obtained results show considerableperformance improvement compared to the conventional MC-CDMA detector and low computation complexitycompared to the optimum detector.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1999年第3期238-242,共5页
Journal of University of Electronic Science and Technology of China
基金
国家科委863高科技项目
关键词
多载波码分多址
贪心算法
MC-CDMA
多址通信
multicarrier code division multiple access
maximum likelihood sequence estimation
greedy algorithm
muti-user detection
