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.
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