Three-Stage Turbo MBER Multiuser Beamforming Receiver using Irregular Convolutional Codes
Three-Stage Turbo MBER Multiuser Beamforming Receiver using Irregular Convolutional Codes
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).
1657-1663
Tan, S.
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Wang, J.
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Ng, S.X.
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Chen, S.
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Hanzo, L.
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May 2008
Tan, S.
6ee9d7e3-0cd0-41b9-805e-9c4edba790b6
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Ng, S.X.
e19a63b0-0f12-4591-ab5f-554820d5f78c
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
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), .
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: 03 Dec 2019 02:06
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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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