计算机工程与应用2011，Vol.47Issue(19)：153-155,3.DOI:10.3778/j.issn.1002-8331.2011.19.042
改进的多载波码分多址系统多址干扰抑制算法
Modified MAI suppression algorithm in MC-CDMA systems
摘要
Abstract
To suppress multiple access interference in MC-CDMA system, an algorithm based on adaptive parallel subgradi-ent projection has been proposed.Stochastic property convex set which contains the optimal interference suppression filter coefficients is established by the receiving signal model flrstly.Then parallel subgradient projection is adopted to convert projection onto convex sets to projection into multiple closed halfspaces.Finally, the updated interference suppression filter coefficients vector is projected onto the constrained set.Theoretical analysis and simulation results conclude that this algorithm has fast convergence,steady interference suppression performance,and exhibits lower bit error rate and higher robustness in different noise intensity.关键词
MC-CDMA系统/自适应并行次梯度投影/多址干扰抑制Key words
MC-CDMA system/adaptive parallel subgradient projection/multiple access interference suppression分类
信息技术与安全科学引用本文复制引用
梁瑞宇,奚吉,张学武..改进的多载波码分多址系统多址干扰抑制算法[J].计算机工程与应用,2011,47(19):153-155,3.基金项目
中央高校基本科研业务费专项资金资助(No.2009B32614,No.2009B32014). （No.2009B32614,No.2009B32014）
