NDLI: Limiting behavior of receive antennae selection

Content Provider	IEEE Xplore Digital Library
Author	Hesami, P. Laneman, J.N.
Copyright Year	2011
Description	Author affiliation: Department of Electrical Engineering, University of Notre Dame, IN, 46556, USA (Hesami, P.; Laneman, J.N.)
Abstract	In this paper we investigate the limiting behavior of receive antenna selection in single-input multiple-output (SIMO) wireless systems when the number of receive antennas gets very large. Using results on the convergence of the trimmed mean, we show that mutual information converges in distribution to the logarithm of a folded Gaussian distribution in the limit of a large number of receive antennas. The convergent distribution also shows there is channel hardening in this scenario like SIMO maximum ratio combining. For finite number of receive antennas, N, we derive the exact outage probability for SIMO with selecting the best S receive antennas. This outage probability analysis is used to study the rate of convergence of the mutual information, which reveals that the rate of convergence increases with the number of selected receive antennas in medium and high SNR regimes and decreases in the low SNR regime. We also show that the multiuser scheduling gain at low SNR is proportional to the square root of number of selected receive antennas, √S, in the limit of large number of users. These results could be useful in designing next-generation wireless systems, such as 4G, where the requirements are to increase the transmission rate by increasing the number of antennas and at the same time decreasing the complexity of the system.
Starting Page	1
Ending Page	6
File Size	256588
Page Count	6
File Format	PDF
ISBN	9781424498468
e-ISBN	9781424498482
e-ISBN	9781424498475
DOI	10.1109/CISS.2011.5766166
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-03-23
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Transmitting antennas Receiving antennas Mutual information Signal to noise ratio Convergence
Content Type	Text
Resource Type	Article

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