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Parallel Interference Cancellation Based Turbo Space-Time Equalization in the SDMA Uplink

Parallel Interference Cancellation Based Turbo Space-Time Equalization in the SDMA Uplink
Parallel Interference Cancellation Based Turbo Space-Time Equalization in the SDMA Uplink
A novel Parallel Interference Cancellation (PIC) based turbo Space Time Equalizer (STE) structure designed for multiple antenna assisted uplink receivers is introduced. The proposed receiver structure allows the employment of non-linear type of detectors such as the Bayesian Decision Feedback (DF) assisted turbo STE or the Maximum Aposteriori (MAP) STE, while operating at a moderate computational cost. Receivers based on the proposed structure outperform the linear turbo detector benchmarker based on the Minimum Mean-Squared Error (MMSE) criterion, even if the latter aims for jointly detecting all transmitters’ signals. Additionally the PIC based receiver is capable of equalizing non-linear binary pre-coded channels. The performance difference between the presented algorithms is discussed using Extrinsic Information Transferfunction (EXIT) charts. Index Terms—PIC, EXIT chart, precoding, Bayesian, STE.
609-616
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Wolfgang, A.
e87811dd-7028-4ac3-90cc-62003ff22202
Chen, S.
ac405529-3375-471a-8257-bda5c0d10e53
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Wolfgang, A., Chen, S. and Hanzo, L. (2007) Parallel Interference Cancellation Based Turbo Space-Time Equalization in the SDMA Uplink. IEEE Transactions on Wireless Communications, 6 (2), 609-616.

Record type: Article

Abstract

A novel Parallel Interference Cancellation (PIC) based turbo Space Time Equalizer (STE) structure designed for multiple antenna assisted uplink receivers is introduced. The proposed receiver structure allows the employment of non-linear type of detectors such as the Bayesian Decision Feedback (DF) assisted turbo STE or the Maximum Aposteriori (MAP) STE, while operating at a moderate computational cost. Receivers based on the proposed structure outperform the linear turbo detector benchmarker based on the Minimum Mean-Squared Error (MMSE) criterion, even if the latter aims for jointly detecting all transmitters’ signals. Additionally the PIC based receiver is capable of equalizing non-linear binary pre-coded channels. The performance difference between the presented algorithms is discussed using Extrinsic Information Transferfunction (EXIT) charts. Index Terms—PIC, EXIT chart, precoding, Bayesian, STE.

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Published date: February 2007
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 263588
URI: http://eprints.soton.ac.uk/id/eprint/263588
PURE UUID: d5ba8e52-8250-4826-9724-76a259425f2d
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 21 Feb 2007
Last modified: 03 Dec 2019 02:06

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