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Title: A joint coded two-step multiuser detection scheme for MIMO OFDM system
Authors: Li, Zhang
Sellathurai, Mathini
Chambers, Jonathon
Keywords: MAI
MIMO-OFDM
Multiuser detection
Error control coding
Interference cancellation
Issue Date: 2007
Publisher: © IEEE
Citation: LI, Z., SELLATHURAI, M. and CHAMBERS, J., 2007. A joint coded two-step multiuser detection scheme for MIMO OFDM system. IN: IEEE International Conference on Acoustics, Speech and Signal Processing, (ICASSP 2007), Honolulu, HI, 15-20 April, pp. III-85 - III-88.
Abstract: Multiple-input, multiple-output (MIMO) communication is an effective scheme to improve wireless communication performance of multiuser applications. However, reliable communication in multiuser systems is affected by the presence of both multi-access interference (MAI) and inter-symbol interference (ISI) in multi-path channels. In this paper, we therefore investigate a transceiver design for a wideband multiuser-MiMO communication system, where the co-channel users are equipped with multiple transmit and multiple receive antennas. In particular, we propose a two-step interference cancellation scheme with an error correction coding technique for the receiver of a multiuser uplink system. The scheme employs orthogonal frequency division multiplexing (OFDM) modulation and space-time block codes (STBC). The receiver performs as a soft output multiuser detector based on minimum mean-squared error (MMSE) interference suppression at the first stage, and then, MAI cancellation is implemented with a bank of single-user channel decoders. The paper also includes computer simulations which help to improve the understanding of specific issues involved in the design of multiuser STBC-OFDM systems, and confirm the utility of the proposed approach
Description: This is a conference paper [© IEEE]. It is also available at: http://ieeexplore.ieee.org/ Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Version: Published
DOI: 10.1109/ICASSP.2007.366478
URI: https://dspace.lboro.ac.uk/2134/5642
ISBN: 1424407273
ISSN: 1520-6149
Appears in Collections:Conference Papers and Contributions (Electronic, Electrical and Systems Engineering)

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