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Low-Complexity MIMO Detector with 1024-QAM

1024QAM and Beyond
Abstract: 

In this paper, dual layer multiple-input multiple-output (2x2 MIMO) systems that use the 1024-QAM modulation are studied. We build on the layered orthogonal lattice detector (LORD), which achieves optimal maximum-likelihood (ML) performance, but which has high complexity with 1024-QAM, and argue that the low-complexity version of LORD (LC-LORD) introduces a significant performance degradation, especially with high channel correlation. We propose several approaches that outperform LC-LORD at a lower complexity. These approaches are based on improving the location of a reduced region of search within a 1024-QAM, as well was optimizing the bit log likelihood ratio (LLR) approximation. The proposed approaches were studied in the context of non-iterative and iterative detection and decoding, and significant gains were achieved in both cases.

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Paper Details

Authors:
Mohammad Mansour, Louay Jalloul, Ali Chehab
Submitted On:
23 February 2016 - 1:44pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Hadi Sarieddeen
Document Year:
2015
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Document Files

GlobalSIP 2015 - 1024QAM - Hadi Sarieddeen.pdf

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[1] Mohammad Mansour, Louay Jalloul, Ali Chehab, "Low-Complexity MIMO Detector with 1024-QAM", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/390. Accessed: May. 25, 2018.
@article{390-15,
url = {http://sigport.org/390},
author = {Mohammad Mansour; Louay Jalloul; Ali Chehab },
publisher = {IEEE SigPort},
title = {Low-Complexity MIMO Detector with 1024-QAM},
year = {2015} }
TY - EJOUR
T1 - Low-Complexity MIMO Detector with 1024-QAM
AU - Mohammad Mansour; Louay Jalloul; Ali Chehab
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/390
ER -
Mohammad Mansour, Louay Jalloul, Ali Chehab. (2015). Low-Complexity MIMO Detector with 1024-QAM. IEEE SigPort. http://sigport.org/390
Mohammad Mansour, Louay Jalloul, Ali Chehab, 2015. Low-Complexity MIMO Detector with 1024-QAM. Available at: http://sigport.org/390.
Mohammad Mansour, Louay Jalloul, Ali Chehab. (2015). "Low-Complexity MIMO Detector with 1024-QAM." Web.
1. Mohammad Mansour, Louay Jalloul, Ali Chehab. Low-Complexity MIMO Detector with 1024-QAM [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/390