Novel relay ordering mechanisms in multi-node cooperative relaying wireless networks

This paper introduces algorithms to find relay ordering in a multi-hop cooperative diversity network. We first describe an optimal relay ordering algorithm for this multi-branch multi-hop cooperative diversity network. The optimum algorithm has a very high complexity that makes it hard to implement when being used in an environment with a large number of relays. Thus, we propose algorithms to reduce the complexity and its performance are close to optimum one. SER and error probability of selected relay ordering of the proposed algorithms are shown to demonstrate the capability of the proposed algorithm.

[1]  Mazen O. Hasna,et al.  Outage probability of multihop transmission over Nakagami fading channels , 2003, IEEE Communications Letters.

[2]  D. G. Brennan.  Linear Diversity Combining Techniques , 1959, Proceedings of the IRE.

[3]  Il-Min Kim,et al.  Decode-and-Forward Cooperative Networks with Relay Selection , 2008, 2007 IEEE 66th Vehicular Technology Conference.

[4]  Il-Min Kim,et al.  Diversity order analysis of the decode-and-forward cooperative networks with relay selection , 2007, IEEE Transactions on Wireless Communications.

[5]  Il-Min Kim,et al.  Relay ordering in a multi-hop cooperative diversity network , 2009, IEEE Transactions on Communications.

[6]  Fortunato Santucci,et al.  On the Performance of CSI-Assisted Cooperative Communications over Generalized Fading Channels , 2008, 2008 IEEE International Conference on Communications.

[7]  K. J. Ray Liu,et al.  SER performance analysis and optimum power allocation for decode-and-forward cooperation protocol in wireless networks , 2005, IEEE Wireless Communications and Networking Conference, 2005.

[8]  Vincent K. N. Lau,et al.  Multi-Relay Selection Design and Analysis for Multi-Stream Cooperative Communications , 2011, IEEE Transactions on Wireless Communications.

[9]  K. J. Ray Liu,et al.  Differential transmission for amplify-and-forward Cooperative communications , 2005, IEEE Signal Processing Letters.

[10]  Halim Yanikomeroglu,et al.  Multihop diversity in wireless relaying channels , 2004, IEEE Transactions on Communications.

[11]  D.L. Goeckel,et al.  Cooperative communications in mobile ad hoc networks , 2006, IEEE Signal Processing Magazine.