On the Required Number of Antennas in a Point-to-Point Large-but-Finite MIMO System: Outage-Limited Scenario

Behrooz Makki, Tommy Svensson, Thomas Eriksson, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


This paper investigates the performance of the point-To-point multiple-input-multiple-output (MIMO) systems in the presence of a large but finite numbers of antennas at the transmitters and/or receivers. Considering the cases with and without hybrid automatic repeat request (HARQ) feedback, we determine the minimum numbers of the transmit/receive antennas, which are required to satisfy different outage probability constraints. Our results are obtained for different fading conditions and the effect of the power amplifiers efficiency/feedback error probability on the performance of the MIMO-HARQ systems is analyzed. Then, we use some recent results on the achievable rates of finite block-length codes, to analyze the effect of the codewords lengths on the system performance. Moreover, we derive closed-form expressions for the asymptotic performance of the MIMO-HARQ systems when the number of antennas increases. Our analytical and numerical results show that different outage requirements can be satisfied with relatively few transmit/receive antennas. © 1972-2012 IEEE.
Original languageEnglish (US)
Pages (from-to)1968-1983
Number of pages16
JournalIEEE Transactions on Communications
Issue number5
StatePublished - Mar 22 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported in part by the European Commission H2020 programme under Grant 671650 (5G PPP mmMAGIC project), and in part by the Swedish Governmental Agency for Innovation Systems (VINNOVA) within the VINN Excellence Center Chase. This work was presented in part at the IEEE ICUWB 2015. The associate editor coordinating the review of this paper and approving it for publication was X. Gao.


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