Low-complexity detectors for spatially-modulated MIMO systems

Wen-Rong Wu, Chun Tao Lin, Chia Yu Liu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Spatial modulation (SM) combined with spatial multIPlexing is a newly developed transmission technique in multIPle-input multIPle-output (MIMO) systems. The resultant system, referred to as SM-MIMO, can use the maximum-likelihood (ML) detector jointly detecting the antenna index and symbol vector. As known, the ML detector can achieve optimum performance; however, its computational complexity may become prohibitively high when the dimension of MIMO system or symbol constellation is large. In this paper, we propose a new method to solve the problem. The main idea is to conduct a two-stage detection, antenna index and symbol. We develop a Gaussian approximation method such that the antenna-index can be first reliably detected. An enhanced method is also proposed so that the near-optimum performance can be obtained. Simulations show that our methods outperform existing methods while the detection complexity remains low.

Original languageEnglish
Title of host publication2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, PIMRC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages188-192
Number of pages5
ISBN (Electronic)9781479949120
DOIs
StatePublished - 25 Jun 2014
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: 2 Sep 20145 Sep 2014

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume2014-June

Conference

Conference2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
CountryUnited States
CityWashington
Period2/09/145/09/14

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  • Cite this

    Wu, W-R., Lin, C. T., & Liu, C. Y. (2014). Low-complexity detectors for spatially-modulated MIMO systems. In 2014 IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, PIMRC 2014 (pp. 188-192). [7136157] (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 2014-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2014.7136157