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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Outage Probability of Decode-and-Forward Relaying Systems with Efficient Partial Relay Selection in Nakagami Fading Channels

  • Lee, Sangjun (Department of Electrical, Electronic and Control Engineering, Hankyong National University) ;
  • Lee, Howon (Department of Electrical, Electronic and Control Engineering, Hankyong National University) ;
  • Choi, Hyun-Ho (Department of Electrical, Electronic and Control Engineering, Hankyong National University) ;
  • Lee, In-Ho (Department of Electrical, Electronic and Control Engineering, Hankyong National University)
  • Received : 2013.04.12
  • Accepted : 2013.09.23
  • Published : 2014.02.01
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Abstract

Recently, efficient partial relay selection (e-PRS) was proposed as an enhanced version of PRS. In comparing e-PRS, PRS, and the best relay selection (BRS), there is a tradeoff between complexity and performance; that is, the complexity for PRS, e-PRS, and BRS is low to high, respectively, but vice versa for performance. In this paper, we study the outage probability for e-PRS in decode-and-forward (DF) relaying systems over non-identical Nakagami-m fading channels, where the fading parameter m is an integer. In particular, we provide closed-form expressions of the exact outage probability and asymptotic outage probability for e-PRS in DF relaying systems. Numerical results show that e-PRS achieves similar outage performance to that of BRS for a low or medium signal-to-noise ratio, a high fading parameter, a small number of relays, and a large difference between the average channel powers for the first and the second hops.

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References

  1. A. Bletsas et al., "A Simple Cooperative Diversity Method Based on Network Path Selection," IEEE J. Sel. Areas Commun., vol. 24, no. 3, Mar. 2006, pp. 659-672. https://doi.org/10.1109/JSAC.2005.862417
  2. T.Q. Duong, V.N.Q. Bao, and H. Zepernick, "On the Performance of Selection Decode-and-Forward Relay Networks over Nakagami-m Fading Channels," IEEE Commun. Lett., vol. 13, no. 3, Mar. 2009, pp. 172-174. https://doi.org/10.1109/LCOMM.2009.081858
  3. I. Krikidis et al., "Amplify-and-Forward with Partial Relay Selection," IEEE Commun. Lett., vol. 12, no. 4, Apr. 2008, pp. 235-237. https://doi.org/10.1109/LCOMM.2008.071987
  4. C. Zhong et al., "Asymptotic Analysis for Nakagami-m Fading Channels with Relay Selection," Proc. IEEE Int. Conf. Commun., Kyoto, Japan, June 5-9, 2011.
  5. S.-I. Kim, Y.-C. Ko, and J. Heo, "Outage Analysis of Amplifyand- Forward Partial Relay Selection Scheme with Multiple Interferers," IEEE Commun. Lett., vol. 15, no. 12, Dec. 2011, pp. 1281-1283. https://doi.org/10.1109/LCOMM.2011.100611.110441
  6. H. Ding et al., "Diversity and Coding Gains of Fixed-Gain Amplify-and-Forward with Partial Relay Selection in Nakagamim Fading," IEEE Commun. Lett., vol. 14, no. 8, Aug. 2010, pp. 734-736. https://doi.org/10.1109/LCOMM.2010.08.100530
  7. I.-H. Lee, "Outage Performance of Efficient Partial Relay Selection in Amplify-and-Forward Relaying Systems over Rayleigh Fading Channels," IEEE Commun. Lett., vol. 16, no. 10, Oct. 2012, pp. 1644-1647. https://doi.org/10.1109/LCOMM.2012.090312.121523
  8. M.O. Hasna and M.-S. Alouini, "Outage Probability of Multi-hop Transmission over Nakagami Fading Channels," IEEE Commun. Lett., vol. 7, no. 5, May 2003, pp. 216-218. https://doi.org/10.1109/LCOMM.2003.812178
  9. N.C. Beaulieu and J. Hu, "A Closed-Form Expression for the Outage Probability of Decode-and-Forward Relaying in Dissimilar Rayleigh Fading Channels," IEEE Commun. Lett., vol. 10, no. 12, Dec. 2006, pp. 813-815. https://doi.org/10.1109/LCOMM.2006.061048
  10. J.G. Proakis, Digital Communications, 4th ed., New York: McGraw-Hill, 2001.
  11. N.S. Ferdinand, N. Rajatheva, and M. Latva-aho, "Performance of OSTBC MIMO Amplify-and-Forward Two-Hop Relay System with Asymmetric Channels," Proc. 8th Int. Symp. Wireless Commun. Syst., Nov. 6-9, 2011, pp. 854-858.
  12. Z. Wang and G.B. Giannakis, "A Simple and General Parameterization Quantifying Performance in Fading Channels," IEEE Trans. Commun., vol. 51, no. 8, Aug. 2003, pp. 1389-1398. https://doi.org/10.1109/TCOMM.2003.815053
  13. D.S. Michalopoulos and G.K. Karagiannidis, "PHY-Layer Fairness in Amplify and Forward Cooperative Diversity Systems," IEEE Trans. Wireless Commun., vol. 7, no. 3, Mar. 2008, pp. 1073-1082. https://doi.org/10.1109/TWC.2008.060825