An Improved Soft-Output Trellis/Tree Iterative Decoder for High-Order BICM on MIMO Frequency Selective Rayleigh Fading Channels

This paper presents an improved soft-output trellis/tree M-algorithm (SOTTMA) (Wong and McClane, 2006) for reduced-complexity equalization of a high-order modulated MIMO system undergoing equal-power, Rayleigh frequency-selective fading. This improved version reduces the amount of computation by app...

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Main Authors: Wong, K.K.Y., McLane, P.J.
Format: Conference Proceeding
Language:English
Subjects:
Fading
Frequency
Iterative algorithms
Iterative decoding
Maximum likelihood decoding
MIMO
Receiving antennas
Signal detection
Signal mapping
Transmitting antennas
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McLane, P.J.
description This paper presents an improved soft-output trellis/tree M-algorithm (SOTTMA) (Wong and McClane, 2006) for reduced-complexity equalization of a high-order modulated MIMO system undergoing equal-power, Rayleigh frequency-selective fading. This improved version reduces the amount of computation by approximately half through the utilization of a mapping scheme with multi-level bit-mapping properties (de Jong and Willink, 2002). The complexity of the improved SOTTMA no longer increases with the constellation size and therefore can be applied to equalize systems with high- order modulation (such as 64-QAM).
doi_str_mv 10.1109/ICC.2008.676
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source IEEE Xplore All Conference Series
subjects Fading
Frequency
Iterative algorithms
Iterative decoding
Maximum likelihood decoding
MIMO
Receiving antennas
Signal detection
Signal mapping
Transmitting antennas
title An Improved Soft-Output Trellis/Tree Iterative Decoder for High-Order BICM on MIMO Frequency Selective Rayleigh Fading Channels
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