On composite channel estimation in wireless massive MIMO systems

Ko Feng Chen, Yen Cheng Liu, Yu-Ted Su

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

7 Scopus citations

Abstract

A multiuser MIMO (MU-MIMO) TDD system in which the base station (BS) uses a large scale antenna array to communicate with single-antenna mobile users is considered. We present novel schemes to estimate both large-scale and small-scale fading coefficients by uplink pilot sequences. The large-scale fading coefficients (LSFCs) are usually ignored or assumed perfectly known and almost all MIMO channel state information (CSI) estimation studies deal solely with small-scale fading coefficients (SSFCs). We propose low complexity algorithms that give reliable estimates for both FCs. The LSFC estimator takes advantage of the excess spatial samples received and the channel hardening effect while the SSFC estimator is based on a rank-reduction approach. Our estimators require a low training overhead and both analysis and numerical experiments prove that they offer superior mean-squared error performance.

Original languageEnglish
Title of host publication2013 IEEE Globecom Workshops, GC Wkshps 2013
PublisherIEEE Computer Society
Pages135-139
Number of pages5
ISBN (Print)9781479928514
DOIs
StatePublished - 1 Jan 2013
Event2013 IEEE Globecom Workshops, GC Wkshps 2013 - Atlanta, GA, United States
Duration: 9 Dec 201313 Dec 2013

Publication series

Name2013 IEEE Globecom Workshops, GC Wkshps 2013

Conference

Conference2013 IEEE Globecom Workshops, GC Wkshps 2013
CountryUnited States
CityAtlanta, GA
Period9/12/1313/12/13

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  • Cite this

    Chen, K. F., Liu, Y. C., & Su, Y-T. (2013). On composite channel estimation in wireless massive MIMO systems. In 2013 IEEE Globecom Workshops, GC Wkshps 2013 (pp. 135-139). [6824975] (2013 IEEE Globecom Workshops, GC Wkshps 2013). IEEE Computer Society. https://doi.org/10.1109/GLOCOMW.2013.6824975