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Three-Stage Turbo MBER Multiuser Beamforming Receiver using Irregular Convolutional Codes

Tan, S., Wang, J., Ng, S.X., Chen, S. and Hanzo, L. (2008) Three-Stage Turbo MBER Multiuser Beamforming Receiver using Irregular Convolutional Codes IEEE Transactions on Vehicular Technology, 57, (3), pp. 1657-1663.

Record type: Article

Abstract

Based on extrinsic information transfer (EXIT) charts, the convergence behavior of a three-stage serially concatenated multiuser beamforming receiver is presented. This system uses a linear minimum bit error rate (BER) multiuser detector as the inner module. Due to the nonrecursive nature of this inner module, a unity-rate memory-1 recursive precoder is placed in front of the channel to provide the required recursive structure. Irregular convolutional codes (IRCCs) are constructed to be used as the outer code to achieve near-capacity performance. Our simulations show that this system outperforms the traditional two-component iterative structure and is capable of significantly reducing the error floor. Index Terms—Beamforming, extrinsic information transfer (EXIT) charts, irregular convolutional codes (IRCCs), minimum bit error rate (MBER).

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Published date: May 2008
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 265789
URI: http://eprints.soton.ac.uk/id/eprint/265789
ISSN: 0018-9545
PURE UUID: a8ca09d7-d562-40bb-8193-143d090d5fbc

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Date deposited: 27 May 2008 10:48
Last modified: 18 Jul 2017 07:23

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Contributors

Author: S. Tan
Author: J. Wang
Author: S.X. Ng
Author: S. Chen
Author: L. Hanzo

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