A new multiple relay selection scheme in dual-hop Amplify-and-Forward cooperative network based on genetic algorithm

Cooperative relay networks have drawn more and more attention, since they can significantly improve network performance in terms of capacity and reliability. Multiple relay selection scheme is one of important issues which deserve careful design in such network. In this paper, we study the multiple relay selection (MRS) scheme in multiple parallel dual-hop Amplify-and-Forward relay networks, with the purpose of maximizing the received signal-to-noise ratio (SNR) at receiver, whereas the receiver adopts equal-gain combining technique. Based on general genetic algorithm (GA), an adaptive-GA (AGA) is proposed to approach optimal solution with better global and local search ability. Simulation results show that the proposed AGA can get almost optimal performance within much shorter time compared to exhaustive scheme.

[1]  Elza Erkip,et al.  User cooperation diversity. Part I. System description , 2003, IEEE Trans. Commun..

[2]  Tho Le-Ngoc,et al.  Joint Power Allocation and Relay Selection in Cooperative Networks , 2009, GLOBECOM 2009 - 2009 IEEE Global Telecommunications Conference.

[3]  Thomas M. Cover,et al.  Elements of Information Theory , 2005 .

[4]  Elza Erkip,et al.  User cooperation diversity. Part II. Implementation aspects and performance analysis , 2003, IEEE Trans. Commun..

[5]  Gregory W. Wornell,et al.  Distributed space-time-coded protocols for exploiting cooperative diversity in wireless networks , 2003, IEEE Trans. Inf. Theory.

[6]  Hong Ji,et al.  A Novel Multi-Relay Selection and Power Allocation Optimization Scheme in Cooperative Networks , 2010, 2010 IEEE Wireless Communication and Networking Conference.

[7]  Yindi Jing,et al.  Single and multiple relay selection schemes and their achievable diversity orders , 2009, IEEE Transactions on Wireless Communications.

[8]  Raviraj S. Adve,et al.  Symbol error rate of selection amplify-and-forward relay systems , 2006, IEEE Communications Letters.

[9]  Danpu Liu,et al.  Joint Relay Selection and Power Allocation in Cooperative-Diversity System , 2010, 2010 International Conference on Communications and Mobile Computing.

[10]  Gregory W. Wornell,et al.  Cooperative diversity in wireless networks: Efficient protocols and outage behavior , 2004, IEEE Transactions on Information Theory.

[11]  Randy L. Haupt,et al.  Practical Genetic Algorithms , 1998 .

[12]  Raviraj S. Adve,et al.  Non-Coherent Code Acquisition in the Multiple Transmit/Multiple Receive Antenna Aided Single- and Multi-Carrier DS-CDMA Downlink , 2007 .

[13]  Aria Nosratinia,et al.  Cooperative communication in wireless networks , 2004, IEEE Communications Magazine.

[14]  Raviraj S. Adve,et al.  Improving amplify-and-forward relay networks: optimal power allocation versus selection , 2006, IEEE Transactions on Wireless Communications.

[15]  Mihaela van der Schaar,et al.  Design and Analysis of Defection-Proof MAC Protocols Using a Repeated Game Framework , 2010, 2010 IEEE Global Telecommunications Conference GLOBECOM 2010.