Minimum variance linear receivers for multiaccess MIMO wireless systems with space-time block coding

We consider the problem of joint space-time decoding and multiaccess interference (MAI) rejection in multiuser multiple-input multiple-output (MIMO) wireless communication systems. We address the case when both the receiver and multiple transmitters are equipped with multiple antennas and when space...

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Bibliographic Details
Published in:IEEE transactions on signal processing 2004-12, Vol.52 (12), p.3306-3313
Main Authors: Shahbazpanahi, S., Beheshti, M., Gershman, A.B., Gharavi-Alkhansari, M., Kon Max Wong
Format: Article
Language:English
Subjects:
Applied sciences
Block codes
Coding, codes
Detection, estimation, filtering, equalization, prediction
Error analysis
Exact sciences and technology
Information, signal and communications theory
Linear receivers
Matched filters
Maximum likelihood decoding
MIMO
Minimum variance linear receivers
multiaccess MIMO communications
Multiple access interference
orthogonal space-time block codes
Power generation
Preserves
Receivers
Receiving antennas
Rejection
Signal and communications theory
Signal, noise
Symbols
Telecommunications and information theory
Transmitters
Transmitting antennas
Wireless communication
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Summary:We consider the problem of joint space-time decoding and multiaccess interference (MAI) rejection in multiuser multiple-input multiple-output (MIMO) wireless communication systems. We address the case when both the receiver and multiple transmitters are equipped with multiple antennas and when space-time block codes (STBCs) are used to send the data simultaneously from each transmitter to the receiver. A new linear receiver structure is developed to decode the data sent from the transmitter-of-interest while rejecting MAI, self-interference, and noise. The proposed receivers are designed by minimizing the output power subject to constraints that zero-force self-interference and/or preserve a unity gain for all symbols of the transmitter-of-interest. Simulation results show that in multiaccess scenarios, the proposed techniques have substantially lower symbol error rates as compared with the matched filter (MF) receiver, which is equivalent to the maximum likelihood (ML) space-time decoder in the point-to-point MIMO communication case.
ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2004.837442