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Ergodic capacity of the exponentially correlated slotted amplify and forward relay channel

Widanagamage, Anushka, Jayalath, Dhammika, & O'Shea, Peter J. (2012) Ergodic capacity of the exponentially correlated slotted amplify and forward relay channel. In Sari, Hikmet (Ed.) Proceedings of IEEE Wireless Communications and Networking Conference, IEEE Communications Society, France, pp. 776-780.

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Abstract

In this paper we analyze the performance degradation of slotted amplify-and-forward protocol in wireless environments with high node density where the number of relays grows asymptotically large. Channel gains between source-destination pairs in such networks can no longer be independent. We analyze the degradation of performance in such wireless environments where channel gains are exponentially correlated by looking at the capacity per channel use. Theoretical results for eigenvalue distribution and the capacity are derived and compared with the simulation results. Both analytical and simulated results show that the capacity given by the asymptotic mutual information decreases with the network density.

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ID Code: 48501
Item Type: Conference Paper
Keywords: Cooperative Relays, Ergodic Capacity, Virtual MIMO
ISBN: 978-1-4673-0435-1
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Mobile Technologies (080502)
Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > DISTRIBUTED COMPUTING (080500) > Networking and Communications (080503)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 IEEE
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 09 Feb 2012 08:38
Last Modified: 29 Sep 2012 16:24

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