Study on effect of training for downlink massive MIMO systems with outdated channel

Taehyoung Kim, Kyungsik Min, Sooyong Choi

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

6 Citations (Scopus)

Abstract

In this paper, we analyze the effect of uplink and downlink training on the downlink achievable rate for massive MIMO systems with outdated channel. Even though both uplink and downlink training have the same training overhead, the achievable rate is more dominated by the uplink training than downlink training. As the number of antennas goes to infinity, the performance gain of the downlink training is negligible. This fact implies that non-coherent detection is more desirable for massive MIMO systems in terms of throughput. The rate loss caused by outdated channel is also dominated by the uplink training. Our analysis gives a good insight to implement practical massive MIMO systems.

Original languageEnglish
Title of host publication2015 IEEE International Conference on Communications, ICC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2369-2374
Number of pages6
ISBN (Electronic)9781467364324
DOIs
Publication statusPublished - 2015 Sep 9
EventIEEE International Conference on Communications, ICC 2015 - London, United Kingdom
Duration: 2015 Jun 82015 Jun 12

Publication series

NameIEEE International Conference on Communications
Volume2015-September
ISSN (Print)1550-3607

Other

OtherIEEE International Conference on Communications, ICC 2015
CountryUnited Kingdom
CityLondon
Period15/6/815/6/12

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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    Kim, T., Min, K., & Choi, S. (2015). Study on effect of training for downlink massive MIMO systems with outdated channel. In 2015 IEEE International Conference on Communications, ICC 2015 (pp. 2369-2374). [7248679] (IEEE International Conference on Communications; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICC.2015.7248679