Title :
Iterative Multiuser Detection and Channel Decoding for DS-CDMA Using Harmony Search
Author :
Zhang, Rong ; Hanzo, Lajos
Author_Institution :
Sch. of Electr. & Comput. Sci., Univ. of Southampton, Southampton, UK
Abstract :
A novel random-guided optimization method is proposed for multiuser detection (MUD) in DS-CDMA systems employing the so-called harmony search (HS) algorithm. We specifically design the HS-aided MUD for the communications problem considered and apply it in an iterative joint MUD and channel decoding framework. Our simulation results demonstrate that a near-single-user performance can be achieved without the employment of the full-search-based optimum MUD even in extremely highly loaded DS-CDMA systems.
Keywords :
channel coding; code division multiple access; decoding; iterative methods; multiuser detection; optimisation; spread spectrum communication; DS-CDMA; channel decoding; harmony search; iterative joint MUD; iterative multiuser detection; random-guided optimization method; , Harmony Search Algorithm; Evolutionary Algorithm; Markov Chain Monte Carlo Algorithm; iterative receiver; multiuser detection;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2009.2027159
