Research ArticleOpen AccessGoogle Scholar indexed
Outage Performance of Opportunistic Amplify-and-Forward Relaying over Asymmetric Fading Environments
- 1
- 2
- 3
International Journal of Communications, Network and System Sciences·Volume 03 (2010)·Pages 430–433·Published 31 May 2010·DOI10.4236/ijcns.2010.35056
Copy link · social · email
Abstract
This letter analyzes the outage probability of opportunistic amplify-and-forward relaying over asymmetric and independent but non-identically distributed (i.n.d) fading environments. The work investigates the scenarios where cooperative nodes are located at different geographical locations. As a result, the different signals are affected by different i.n.d fading channels, one may undergo Rician fading distribution and others may undergo Rayleigh fading distribution. In this letter, a lower bound of the outage probability for various asymmetric fading environments is derived at high SNR by applying the initial value theorem. The analytical model is validated through Monte-Carlo simulation results.
KeywordsOutage ProbabilityOpportunistic RelayingAmplify-and-Forward RelayingRayleigh and Rician Fading ChannelsAsymmetric Fading ChannelsIndependent and Non-Identically Distributed
- J. N. Laneman, D. N. C. Tse and G. W. Wornell, “Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage Behavior,” IEEE Transactions of Information Theory, Vol. 50, No. 12, 2004, pp. 3062-3080.
- Y. Zhao, R. Adve and T. J. Lim, “Outage Probability at Arbitrary SNR with Cooperative Diversity,” IEEE Communications Letters, Vol. 9, No. 8, 2005, pp. 700-703.
- Y. Zhao, R. Adve and T. J. Lim, “Symbol Error Rate of Selection Amplify-and-For- ward Relay Systems,” IEEE Communications Letters, Vol. 10, No. 11, 2006, pp. 757- 759.
- A. Bletsas, H. Shin and M. Z. Win, “Cooperative Communication with Outage Optimal Opportunistic Relaying,” IEEE Transactions on Wireless Communications, Vol. 6, No. 9, 2007, pp. 3450-3459.
- M. Katz and S. Shamai, “Relaying Protocols for two Colocated Users,” IEEE Transactions on Information Theory, Vol. 52, No. 6, 2009, pp. 2329-2344.
- H. Suraweera, G. Karagiannidis and P. Smith, “Perform- ance analysis of the dual-hop asymmetric fading channel,” IEEE Transactions on Wireless Communications Letters, Vol. 8, No. 6, 2009, pp. 2783-2788.
- K.-S. Hwang, Y.-C. Ko and M.-S. Alouini, “Performance Analysis of Incremental Opportunistic Relaying over Identically and Non-Identically Distributed Cooperative Paths,” IEEE Transactions on Wireless Communications, Vol. 8, No. 4, April 2009, pp. 1953-1961.