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Multiple scrambling codes aided multiuser detection for spatial multiplexing in DS/CDMA systems
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- Authors
- Seong Rag Kim, Young-Ho Jung
- Issue Date
- 2005-09
- Citation
- Vehicular Technology Conference (VTC) 2005 (Fall), pp.88-92
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In conventional MIMO detectors for spatial multiplexing, the number of receiver antennas should be at least the number of the transmitter antennas and they exhibit severe performance degradation in the spatially correlated environments. In this paper, to overcome these problems, we propose multiple scrambling codes aided spatial multiplexing for the MIMO DS/CDMA systems in frequency-selective channels. The proposed receivers have low-complexity and outperform the V-BLAST detector in both spatially uncorrelated and correlated environments.
- KSP Keywords
- CDMA systems, Correlated environments, Frequency selective channel, Multiuser detection, Scrambling Codes, V-BLAST, low-complexity, performance degradation, spatial multiplexing(SMX)