Abstract
In this paper, an energy-efficient optimal relay selection strategy which is jointly optimized with the energy-efficient optimal power allocation scheme for AF cooperative transmission is proposed. The relay selection criterion is the distance from the potential relay to the corresponding optimal relay locations where the minimum transmission power of the source, the relay or their total can be achieved. In order to determine the optimal relay locations, a universal algorithm with low computational complexity and easy implementation is also presented. Simulations are conducted to validate our theoretical analysis. The results show that with the relay selected by the proposed strategy, the cooperative transmission can achieve considerably high energy-efficiency.
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C. Shuguang, A. J. Goldsmith and A. Bahai, Energy-efficiency of MIMO and cooperative MIMO techniques in sensor networks, IEEE Journal on Selected Areas in Communications, Vol. 22, No. 6, pp. 1089–1098, 2004.
S. K. Jayaweera, Virtual MIMO-based cooperative communication for energy-constrained wireless sensor networks, IEEE Transactions on Wireless Communications, Vol. 5, No. 5, pp. 984–989, 2006.
A. Nosratinia, T. E. Hunter and A. Hedayat, Cooperative communication in wireless networks, IEEE Communications Magazine, Vol. 42, No. 10, pp. 74–80, 2004.
J. N. Laneman, G. W. Wornell and D. N. C. Tse, An efficient protocol for realizing cooperative diversity in wireless networks. In Proceedings of the IEEE international symposium on information theory, p. 294, 2001.
Y. Zhao, R. Adve and T. J. Lim, Improving amplify-and-forward relay networks: optimal power allocation versus selection, IEEE Transactions on Wireless Communication, Vol. 6, No. 8, pp. 3114–3123, 2007.
S. Lingyang, Relay selection for two-way relaying with amplify-and-forward protocols, IEEE Transactions on Vehicular Technology, Vol. 60, No. 4, pp. 1954–1959, 2011.
V. Mahinthan, C. Lin, J. W. Mark, et al., Partner selection based on optimal power allocation in cooperative–diversity systems, IEEE Transactions on Vehicular Technology, Vol. 57, No. 1, pp. 511–520, 2008.
H. Wan-Jen, Y. W. P. Hong and C. C. J. Kuo, Lifetime maximization for amplify-and-forward cooperative networks, IEEE Transactions on Wireless Communications, Vol. 7, No. 5, pp. 1800–1805, 2008.
Z. Zhong, Z. Shengli, C. Jun-Hong, et al., Energy-efficient cooperative communication based on power control and selective single-relay in wireless sensor networks, IEEE Transactions on Wireless Communications, Vol. 7, No. 8, pp. 3066–3078, 2008.
A. S. Ibrahim, A. K. Sadek, S. Weifeng, et al., Cooperative communications with relay-selection: when to cooperate and whom to cooperate with?, IEEE Transactions on Wireless Communications, Vol. 7, No. 7, pp. 2814–2827, 2008.
A. K. Sadek, H. Zhu and K. J. R. Liu, Distributed relay-assignment protocols for coverage expansion in cooperative wireless networks, IEEE Transactions on Mobile Computing, Vol. 9, No. 4, pp. 505–515, 2010.
G. Kramer, M. Gastpar and P. Gupta, Cooperative strategies and capacity theorems for relay networks, IEEE Transactions on Information Theory, Vol. 51, No. 9, pp. 3037–3063, 2005.
Y. Meng, L. Jing and H. Sadjadpour, Amplify-forward and decode-forward: the impact of location and capacity contour. In Proceedings of the IEEE military communications conference, pp. 1609–1615, 2005.
A. K. Sadek, H. Zhu and K. J. R. Liu, A distributed relay-assignment algorithm for cooperative communications in wireless networks. In Proceedings of the IEEE international conference on communications, pp. 1592–1597, 2006.
W. Su, A. K. Sadek and K. J. R. Liu, Cooperative communication protocols in wireless networks: performance analysis and optimum power allocation, Wireless Personal Communications, Vol. 44, No. 2, pp. 181–217, 2008.
Acknowledgments
This work is supported by the National Natural Science Foundation of China (No. 61303210) and the Zhejiang Provincial Natural Science Foundation of China (LQ12F02009).
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Tang, Z., Wang, H. & Hu, Q. An Energy-Efficient Relay Selection Strategy Based on Optimal Relay Location for AF Cooperative Transmission. Int J Wireless Inf Networks 20, 355–364 (2013). https://doi.org/10.1007/s10776-013-0222-8
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DOI: https://doi.org/10.1007/s10776-013-0222-8