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Adaptive CMMSE receivers for space-time block coded MIMO CDMA systems
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- Authors
- Young-Ho Jung, Seung-Chul Hong, Seong Rag Kim, Y.H. Lee
- Issue Date
- 2002-09
- Citation
- Vehicular Technology Conference (VTC) 2002 (Fall), pp.8-12
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- A technique that can suppress multiple access interference (MAI) in space-time block coded (STBC) multiple-input multiple-output (MIMO) CDMA systems is developed. The proposed scheme, called the constrained minimum mean square error (CMMSE) receiver, is an extension of our method (see Hong, S.C. et al., Proc. VTC'02 Spring, 2002) to MIMO systems. The proposed CMMSE receiver for STBC systems has the identical complexity and rate of convergence as those of the CMMSE receiver for a SISO system, irrespective of the number of transmission antennas. Closed-form expressions for signal-to-interference-and-noise ratio (SINR) of the proposed and conventional maximum likelihood (ML) receivers are derived. As a result, it is shown that the proposed CMMSE receiver can provide significant performance improvement over the existing ML receiver.
- KSP Keywords
- CDMA systems, Closed-form expressions, Coded MIMO, MIMO CDMA, MIMO system, ML receiver, Minimum Mean Square Error(MMSE), Multiple access interference(MAI), Multiple input multiple output(MIMO), Rate of convergence, SISO system