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On Multi-User EXIT chart analysis aided Turbo-Detected MBER beamformer designs

On Multi-User EXIT chart analysis aided Turbo-Detected MBER beamformer designs
On Multi-User EXIT chart analysis aided Turbo-Detected MBER beamformer designs
This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver communicating over both additive white Gaussian noise (AWGN) and multipath slow fading channels. Based on the extrinsic information transfer (EXIT) chart technique, we investigate the convergence behavior of an iterative minimum bit error rate (MBER) multiuser detection (MUD) scheme as a function of both the system parameters and channel conditions in comparison to the SIC aided minimum mean square error (SIC-MMSE) MUD. Our simulation results show that the EXIT chart analysis is sufficiently accurate for the MBER MUD. Quantitatively, a two-antenna system was capable of supporting up to K=6 users at Eb/N0=3dB, even when their ngular separation was relatively low, potentially below 20 degrees.
1536-1276
314-323
Tan, Shuang
e7f739b4-0aa4-494f-ac0d-cd000d10c576
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1
Tan, Shuang
e7f739b4-0aa4-494f-ac0d-cd000d10c576
Chen, Sheng
9310a111-f79a-48b8-98c7-383ca93cbb80
Hanzo, Lajos
66e7266f-3066-4fc0-8391-e000acce71a1

Tan, Shuang, Chen, Sheng and Hanzo, Lajos (2008) On Multi-User EXIT chart analysis aided Turbo-Detected MBER beamformer designs. IEEE Transactions on Wireless Communications, 7 (1), 314-323.

Record type: Article

Abstract

This paper studies the mutual information transfer characteristics of a novel iterative soft interference cancellation (SIC) aided beamforming receiver communicating over both additive white Gaussian noise (AWGN) and multipath slow fading channels. Based on the extrinsic information transfer (EXIT) chart technique, we investigate the convergence behavior of an iterative minimum bit error rate (MBER) multiuser detection (MUD) scheme as a function of both the system parameters and channel conditions in comparison to the SIC aided minimum mean square error (SIC-MMSE) MUD. Our simulation results show that the EXIT chart analysis is sufficiently accurate for the MBER MUD. Quantitatively, a two-antenna system was capable of supporting up to K=6 users at Eb/N0=3dB, even when their ngular separation was relatively low, potentially below 20 degrees.

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Published date: 1 January 2008

Identifiers

Local EPrints ID: 448162
URI: http://eprints.soton.ac.uk/id/eprint/448162
ISSN: 1536-1276
PURE UUID: 6c82c537-0780-4621-a28d-9aa09e146fcc
ORCID for Lajos Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

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Date deposited: 13 Apr 2021 16:31
Last modified: 14 Apr 2021 01:34

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Contributors

Author: Shuang Tan
Author: Sheng Chen
Author: Lajos Hanzo ORCID iD

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