Optimal Power Allocation for Hybrid Amplify-and-Forward Cooperative Networks

This paper deals with power allocation techniques for cooperative protocols where terminals are constrained by half-duplex assumption and average total network power. We propose a cooperation scheme based on the combination of hybrid cooperation strategies with an effective power allocation algorithm. Simulation results show that our proposal improves the outage performance while reducing the overall cooperation complexity.

[1]  Zhang Jingmei,et al.  Power allocation for regenerative relay channel with Rayleigh fading , 2004, 2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514).

[2]  Jean-Claude Belfiore,et al.  Optimal Space-Time Codes for the MIMO Amplify-and-Forward Cooperative Channel , 2006 .

[3]  David Tse,et al.  Outage Capacity of the Fading Relay Channel in the Low-SNR Regime , 2006, IEEE Transactions on Information Theory.

[4]  E. Erkip,et al.  Outage minimization by opportunistic cooperation , 2005, 2005 International Conference on Wireless Networks, Communications and Mobile Computing.

[5]  Philip Schniter,et al.  On the achievable diversity-multiplexing tradeoff in half-duplex cooperative channels , 2005, IEEE Transactions on Information Theory.

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

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

[8]  Mazen O. Hasna,et al.  Optimal power allocation for relayed transmissions over Rayleigh-fading channels , 2004, IEEE Transactions on Wireless Communications.

[9]  Jean-Claude Belfiore,et al.  Adaptive Modulation and Coding for Hybrid Cooperative Networks , 2007, 2007 IEEE International Conference on Communications.

[10]  Stephen P. Boyd,et al.  Convex Optimization , 2004, Algorithms and Theory of Computation Handbook.

[11]  N. Supérieure Towards the Optimal Amplify-and-Forward Cooperative Diversity Scheme , 2007 .

[12]  Helmut Bölcskei,et al.  Fading relay channels: performance limits and space-time signal design , 2004, IEEE Journal on Selected Areas in Communications.

[13]  Zhang Zhang,et al.  Adaptive optimal transmit power allocation for two-hop non-regenerative wireless relaying system , 2004, 2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514).

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

[15]  Armin Wittneben,et al.  On the Optimal Power Allocation for Nonregenerative OFDM Relay Links , 2006, 2006 IEEE International Conference on Communications.

[16]  Lizhong Zheng,et al.  Diversity and multiplexing: a fundamental tradeoff in multiple-antenna channels , 2003, IEEE Trans. Inf. Theory.