A Zero-Forcing Approximate Log-Likelihood Receiver for MIMO Bit-Interleaved Coded Modulation

Michael R G Butler; Iain B. Coillings

doi:10.1109/LCOMM.2004.823435

A Zero-Forcing Approximate Log-Likelihood Receiver for MIMO Bit-Interleaved Coded Modulation

Michael R G Butler^*, Iain B. Coillings

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

61 Citations (Scopus)

Abstract

This letter considers multiple-input multiple-output (MIMO) systems with bit-interleaved coded modulation. An approximate log-likelihood decoding approach is presented based on a zero-forcing receiver. The implementation complexity is low compared to the maximum likelihood (ML) receiver. We show that the performance gap, compared to ML, reduces when either the number of receive antennas or the modulation order is increased. Results are presented for both narrowband fast-fading, and orthogonal frequency division multiplexing (OFDM) channels. In the OFDM case, we demonstrate performance gaps as low as 0. 5 dB for MIMO extensions to the IEEE 802.11a wireless local area network physical layer standard.

Original language	English
Pages (from-to)	105-107
Number of pages	3
Journal	IEEE Communications Letters
Volume	8
Issue number	2
DOIs	https://doi.org/10.1109/LCOMM.2004.823435
Publication status	Published - Feb 2004
Externally published	Yes

Keywords

Bit-interleaved coded modulation (BICM)
Fast-fading
Multiple-input multiple-output (MIMO)
Orthogonal frequency-division multiplexing (OFDM)
Zero-forcing

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10.1109/LCOMM.2004.823435

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title = "A Zero-Forcing Approximate Log-Likelihood Receiver for MIMO Bit-Interleaved Coded Modulation",

abstract = "This letter considers multiple-input multiple-output (MIMO) systems with bit-interleaved coded modulation. An approximate log-likelihood decoding approach is presented based on a zero-forcing receiver. The implementation complexity is low compared to the maximum likelihood (ML) receiver. We show that the performance gap, compared to ML, reduces when either the number of receive antennas or the modulation order is increased. Results are presented for both narrowband fast-fading, and orthogonal frequency division multiplexing (OFDM) channels. In the OFDM case, we demonstrate performance gaps as low as 0. 5 dB for MIMO extensions to the IEEE 802.11a wireless local area network physical layer standard.",

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AB - This letter considers multiple-input multiple-output (MIMO) systems with bit-interleaved coded modulation. An approximate log-likelihood decoding approach is presented based on a zero-forcing receiver. The implementation complexity is low compared to the maximum likelihood (ML) receiver. We show that the performance gap, compared to ML, reduces when either the number of receive antennas or the modulation order is increased. Results are presented for both narrowband fast-fading, and orthogonal frequency division multiplexing (OFDM) channels. In the OFDM case, we demonstrate performance gaps as low as 0. 5 dB for MIMO extensions to the IEEE 802.11a wireless local area network physical layer standard.

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A Zero-Forcing Approximate Log-Likelihood Receiver for MIMO Bit-Interleaved Coded Modulation

Abstract

Keywords

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