Optimal Relay Location for Fading Relay Channels

In this paper we study the problem of relayenhanced cell (REC) coverage for which relay location is optimized to maximize the achievable REC radius. The problem is investigated for both Rayleigh and Rician relay fading channels, under a pre-determined user's outage probability constraint. We propose a statistical approach to formulate the problem and develop an optimization algorithm for it. The analytical derivation is justified by numerical simulations.

[1]  Hesham El Gamal,et al.  On the Achievable Diversity-vs-Multiplexing Tradeoff in Cooperative Channels , 2004 .

[2]  Elza Erkip,et al.  Cooperative coding for wireless networks , 2004, IEEE Trans. Commun..

[3]  Abbas El Gamal,et al.  Capacity theorems for the relay channel , 1979, IEEE Trans. Inf. Theory.

[4]  E. Meulen,et al.  Three-terminal communication channels , 1971, Advances in Applied Probability.

[5]  H. Vincent Poor,et al.  Resource Allocation for Wireless Fading Relay Channels: Max-Min Solution , 2007, IEEE Transactions on Information Theory.

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

[7]  Ralf R. Müller,et al.  On the transport capacity of Gaussian multiple access and broadcast channels , 2005, Third International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt'05).

[8]  Xing Zhang,et al.  Power Allocation and Subcarrier Pairing in OFDM-Based Relaying Networks , 2008, 2008 IEEE International Conference on Communications.

[9]  Timothy N. Davidson,et al.  Joint Power and Channel Resource Allocation for Two-User Orthogonal Amplify-and-Forward Cooperation , 2008, IEEE Transactions on Wireless Communications.

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

[11]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[12]  Ralf R. Müller,et al.  On the transport capacity of Gaussian multiple access and broadcast channels , 2008, Wirel. Networks.

[13]  Jing Li,et al.  Amplify-forward and decode-forward: the impact of location and capacity contour , 2005, MILCOM 2005 - 2005 IEEE Military Communications Conference.

[14]  Michael Gastpar,et al.  Cooperative strategies and capacity theorems for relay networks , 2005, IEEE Transactions on Information Theory.