Effective rate maximization in large MIMO multiuser system

Ilgyu Choi, Chungyong Lee

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Large MIMO system can achieve high data rate with simple linear transceiver. However, for this advantage, long time is required to estimate channel state information (CSI) at base station (BS). When estimation time is not negligible in coherence time, there exists tradeoff between estimation and data transmission. With long estimation time, data rate increases, but data transmission time decreases. Otherwise, with short estimation time, data rate decreases, but data transmission time increases. Therefore, maximizing not data rate itself but effective rate is required in large MIMO system. We mathematize an effective rate problem in a reasonable large MIMO system, and prove its concavity and find the optimal tradeoff point.

Original languageEnglish
Title of host publication2012 9th International Conference and Expo on Emerging Technologies for a Smarter World, CEWIT 2012
PublisherIEEE Computer Society
ISBN (Print)9781467325042
DOIs
Publication statusPublished - 2012
Event2012 9th International Conference and Expo on Emerging Technologies for a Smarter World, CEWIT 2012 - Incheon, Korea, Republic of
Duration: 2012 Nov 5 → 2012 Nov 6

Publication series

Name2012 9th International Conference and Expo on Emerging Technologies for a Smarter World, CEWIT 2012

Other

Other2012 9th International Conference and Expo on Emerging Technologies for a Smarter World, CEWIT 2012
CountryKorea, Republic of
CityIncheon
Period12/11/5 → 12/11/6

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

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