期刊名称:International Journal of Advanced Computer Science and Applications(IJACSA)
印刷版ISSN:2158-107X
电子版ISSN:2156-5570
出版年度:2016
卷号:7
期号:1
DOI:10.14569/IJACSA.2016.070195
出版社:Science and Information Society (SAI)
摘要:This paper presents a constrained least mean squared (LMS) algorithm for MIMO CDMA linear equalizer is presented, which is constrained on spreading sequence length, number of subscribers, variances of the Gaussian noise and the multiple access interference (MAI) plus the additive noise (introduced as a new constraint). The novelty of the proposed algorithm is that MAI and MAI plus noise variance has never been used as a constraint in MIMO CDMA systems. Convergence analysis is performed for the proposed algorithm in case when statistics of MAI and MAI plus noise are available. Simulation results are presented to compare the performance of the proposed constrained algorithm with other constrained algorithms and it is proved that the new algorithm has outperformed the existing constrained algorithms.
关键词:thesai; IJACSA; thesai.org; journal; IJACSA papers; Least mean squared (LMS); multiple input; multiple output (MIMO); linear equalizer; multiple access in-terference (MAI); Variance; AWGN; adaptive algorithm