Relay selection with outdated channel estimates in Nakagami-m fading

Michalopoulos DS, Chatzidiamantis ND, Schober R, Karagiannidis GK (2011)

Publication Type: Conference contribution

Publication year: 2011

Journal

Conference Record - International Conference on Communications Institute of Electrical and Electronics Engineers

Conference Proceedings Title: IEEE International Conference on Communications

Event location: Kyoto JP

ISBN: 9781612842332

DOI: 10.1109/icc.2011.5963416

Abstract

We study the effect of outdated channel estimates on decode-and-forward relay selection, when operating over Nakagami-m fading channels. Closed-form expressions for the exact outage probability are derived, as function of the correlation between the actual and the estimated channel values. The diversity and coding gain are also studied, revealing a high dependence of diversity order on the aforementioned correlation coefficient. It is shown that when the channel estimates are not perfectly updated, the performance of relay selection is equivalent, in terms of diversity order, to the scheme where only a single relay is available. © 2011 IEEE.

Authors with CRIS profile

Robert Schober

Involved external institutions

Aristotle University of Thessaloniki GR Greece (GR) University of British Columbia CA Canada (CA)

How to cite

APA:

Michalopoulos, D.S., Chatzidiamantis, N.D., Schober, R., & Karagiannidis, G.K. (2011). Relay selection with outdated channel estimates in Nakagami-m fading. In IEEE International Conference on Communications. Kyoto, JP.

MLA:

Michalopoulos, Diomidis S., et al. "Relay selection with outdated channel estimates in Nakagami-m fading." Proceedings of the 2011 IEEE International Conference on Communications, ICC 2011, Kyoto 2011.

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