Wang Wen-yi, Yang Shu-yuan, Liang Jun-li, Gao Li. Power Allocation for Cooperative Diversity with Multi-relays Based on Decode-and-Forward[J]. Journal of Electronics & Information Technology, 2008, 30(3): 612-615. doi: 10.3724/SP.J.1146.2006.01294
Citation:
Wang Wen-yi, Yang Shu-yuan, Liang Jun-li, Gao Li. Power Allocation for Cooperative Diversity with Multi-relays Based on Decode-and-Forward[J]. Journal of Electronics & Information Technology, 2008, 30(3): 612-615. doi: 10.3724/SP.J.1146.2006.01294
Wang Wen-yi, Yang Shu-yuan, Liang Jun-li, Gao Li. Power Allocation for Cooperative Diversity with Multi-relays Based on Decode-and-Forward[J]. Journal of Electronics & Information Technology, 2008, 30(3): 612-615. doi: 10.3724/SP.J.1146.2006.01294
Citation:
Wang Wen-yi, Yang Shu-yuan, Liang Jun-li, Gao Li. Power Allocation for Cooperative Diversity with Multi-relays Based on Decode-and-Forward[J]. Journal of Electronics & Information Technology, 2008, 30(3): 612-615. doi: 10.3724/SP.J.1146.2006.01294
This paper studies the power allocation problem in a cooperative diversity system with multi-relays based on decode-and-forward in fading channels. The system model assumes both the source and the destination have the complete Channel State Information (CSI). A relay selection and power allocation scheme is proposed to minimize the system outage probability by maximize the system capacity on each channel realization with power restraint. Simulation results verify the improved performance of the proposed method.
Sendonaris A, Erkip E, and Aazhang B. User cooperationdiversity-Part I: System description[J].IEEE Trans. on Comm.2003, 51(11):1927-[2]Laneman J N, Tse D N C, and Wornell G W. Cooperativediversity in wireless networks: Efficient protocols and outagebehavior[J].IEEE Trans. on Inform. Theory.2004, 50(12):3062-[3]Laneman J N, Tse D N C, and Wornell G W. Distributedspace-time coded protocols for exploiting cooperativediversity in wireless networks[J].IEEE Trans. on Inform.Theory.2003, 49(10):2415-[4]Bletsas A, Khisti A, Reed D P, and Lippman A. A simplecooperative diversity method based on network path selection[J].IEEE J. on Sel. Areas Comm.2006, 24(3):659-[5]Hunter T E and Nosratinia A. Diversity through codedcooperative[J].IEEE Trans. on Wireless Comm.2006, 5(2):283-[6]Hasna M O and Alouini M. Optimal power allocation forrelayed transmissions over Rayleigh-fading channels[J].IEEETrans. on Wireless Comm.2004, 3(6):1999-[7]Deng X and Haimovich A M. Power allocation for cooperativerelaying in wireless networks[J].IEEE Communications Letters.2005, 9(11):994-[8]Luo J, Blum R S, and Cimini L J, et al.. Power allocation ina transmit diversity system with mean channel gaininformation[J].IEEE Communications Letters.2005, 9(7):616-[9]Zhao Y, Adve R S and Lim T J. Improving amplify-andforwardrelay networks: optimal power allocation versusselection. submitted to IEEE Trans. on Wireless Comm.,2006.