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MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis

MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis
MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis
This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for quadrature phase shift keying (QPSK) modulated systems communicating over additive white Gaussian noise (AWGN) channels. Based on the extrinsic information transfer (EXIT) chart technique, we investigate the convergence behaviour of an iterative minimum bit error rate (MBER) multiuser detection scheme as a function of the system parameters and channel conditions. We also compare the achievable performance and convergence behaviour of different multiuser detectors (MUD) and channel decoders. Our simulation results show that the EXIT chart analysis is sufficiently accurate for reliably predicting the performance of the MBER MUD, despite its potentially non-Gaussian output distribution because we invoke the histogram-based approximation of the true distribution. As expected, the proposed SICMBER MUD outperforms the SIC aided minimum mean square error (SIC-MMSE) MUD.
561-565
Tan, S.
6ee9d7e3-0cd0-41b9-805e-9c4edba790b6
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Tan, S.
6ee9d7e3-0cd0-41b9-805e-9c4edba790b6
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Tan, S., Chen, S. and Hanzo, L. (2007) MBER Turbo Multiuser Beamforming Aided QPSK Receiver Design using EXIT Chart Analysis. IEEE VTC'07 (Fall), Baltimore, MD, United States. 29 Sep - 02 Oct 2007. pp. 561-565 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver designed for quadrature phase shift keying (QPSK) modulated systems communicating over additive white Gaussian noise (AWGN) channels. Based on the extrinsic information transfer (EXIT) chart technique, we investigate the convergence behaviour of an iterative minimum bit error rate (MBER) multiuser detection scheme as a function of the system parameters and channel conditions. We also compare the achievable performance and convergence behaviour of different multiuser detectors (MUD) and channel decoders. Our simulation results show that the EXIT chart analysis is sufficiently accurate for reliably predicting the performance of the MBER MUD, despite its potentially non-Gaussian output distribution because we invoke the histogram-based approximation of the true distribution. As expected, the proposed SICMBER MUD outperforms the SIC aided minimum mean square error (SIC-MMSE) MUD.

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More information

Published date: 2007
Additional Information: Event Dates: 30 September-3 October 2007
Venue - Dates: IEEE VTC'07 (Fall), Baltimore, MD, United States, 2007-09-29 - 2007-10-02
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 264656
URI: http://eprints.soton.ac.uk/id/eprint/264656
PURE UUID: 91226dda-35bc-4914-882a-70871a961838
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 08 Oct 2007
Last modified: 07 Oct 2020 01:33

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