Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation

Adam R. Margetts; Nicholas B. Chang; Keith W. Forsythe; D. W. Bliss

doi:10.1109/ACSSC.2008.5074731

Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation

Adam R. Margetts, Nicholas B. Chang, Keith W. Forsythe, D. W. Bliss

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Multiple-input multiple-output (MIMO) wireless communication systems enhance reliability and improve throughput for a given total transmit power. In actual systems, the channel and noise parameters must be estimated to capture the MIMO gains. In this paper, we couple a direct, q-ary Galois field [GF(q)], low-density parity-check (LDPC) space-time coding and modulation scheme with a receiver that iterates between decoding the transmitted symbols, estimating the convolutive MIMO channel with pilots and symbol decisions, and removing inter-symbol interference. The result is a powerful system that outperforms linear space-time equalization and performs within one decibel of a system with perfect channel knowledge and no inter-symbol interference.

Original language	English (US)
Title of host publication	2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Pages	1772-1776
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2008.5074731
State	Published - Dec 1 2008
Externally published	Yes
Event	2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008 - Pacific Grove, CA, United States Duration: Oct 26 2008 → Oct 29 2008

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
ISSN (Print)	1058-6393

Other

Other	2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
Country	United States
City	Pacific Grove, CA
Period	10/26/08 → 10/29/08

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

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Margetts, A. R., Chang, N. B., Forsythe, K. W., & Bliss, D. W. (2008). Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation. In 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008 (pp. 1772-1776). [5074731] (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2008.5074731

Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation. / Margetts, Adam R.; Chang, Nicholas B.; Forsythe, Keith W.; Bliss, D. W.

2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008. 2008. p. 1772-1776 5074731 (Conference Record - Asilomar Conference on Signals, Systems and Computers).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Margetts, AR, Chang, NB, Forsythe, KW & Bliss, DW 2008, Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation. in 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008., 5074731, Conference Record - Asilomar Conference on Signals, Systems and Computers, pp. 1772-1776, 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008, Pacific Grove, CA, United States, 10/26/08. https://doi.org/10.1109/ACSSC.2008.5074731

Margetts AR, Chang NB, Forsythe KW, Bliss DW. Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation. In 2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008. 2008. p. 1772-1776. 5074731. (Conference Record - Asilomar Conference on Signals, Systems and Computers). https://doi.org/10.1109/ACSSC.2008.5074731

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AB - Multiple-input multiple-output (MIMO) wireless communication systems enhance reliability and improve throughput for a given total transmit power. In actual systems, the channel and noise parameters must be estimated to capture the MIMO gains. In this paper, we couple a direct, q-ary Galois field [GF(q)], low-density parity-check (LDPC) space-time coding and modulation scheme with a receiver that iterates between decoding the transmitted symbols, estimating the convolutive MIMO channel with pilots and symbol decisions, and removing inter-symbol interference. The result is a powerful system that outperforms linear space-time equalization and performs within one decibel of a system with perfect channel knowledge and no inter-symbol interference.

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Iterative inter-symbol interference canceling receiver for direct space-time GF(q) LDPC modulation

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