Space-time iterative multiuser receiver for a coded DS-CDMA system in a flat fading channel
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abstract
In this paper, we consider a space-time iterative multiuser (STIM) receiver for a flat fading channel and examine its application in a DS-CDMA mobile communication system with forward error correction (FEC) coding. This multiuser receiver structure exploits its spatial and temporal capabilities to overcome interference. Numerical results shows that a significant increase in capacity over flat fading channels is achieved by combining efficient space-time coding (STC), multiuser detection (MUD), iterative signal processing techniques and the reuse of orthogonal spreading codes.
Code division multiple access; Codes (symbols); Communication channels (information theory); Direct sequence systems; Error correction; Fading (radio); Iterative methods; Mobile radio systems; Numerical methods; Radio interference; Signal encoding; Space time adaptive processing; Flat fading channel; Forward error correction; Multiuser detection; Orthogonal spreading codes; Space time iterative multiuser receiver; Radio receivers
