Outage probability guaranteed relay selection in cooperative communications

This study is focused on the multiple relay selection problem in cooperative communications. The objective is to select the minimum set of relays to minimise the spectrum cost while preserving the signal-to-noise ratio (SNR) requirement at the destination. A probabilistic constraint is adopted to characterise the SNR outage requirement, which turns out to be intractable in general. As a solution, a tractable bound is derived for the outage probability constraint, with which the multiple relay selection problem can be formulated as a mixed integer optimisation problem with the on-and-off power mode at the relays, which is NP-hard. By utilising the intersections of the proposed bound for different relays, the authors propose an outage probability guaranteed relay selection algorithm which can find the optimal solution with significantly reduced complexity. A heuristic algorithm is also proposed for comparison. Extensive simulation results are provided to show the effectiveness of the proposed schemes.

[1]  Kai Yang,et al.  Cooperative decode-and-forward relaying with orthogonal space-time block code over doubly correlated Nakagami-m fading channels , 2013, IET Commun..

[2]  Aggelos Bletsas,et al.  A simple Cooperative diversity method based on network path selection , 2005, IEEE Journal on Selected Areas in Communications.

[3]  Masoud Ardakani,et al.  Adaptive Multiple Relay Selection Scheme for Cooperative Wireless Networks , 2010, 2010 IEEE Wireless Communication and Networking Conference.

[4]  Norman C. Beaulieu,et al.  A closed-form expression for the outage probability of decode-and-forward relaying in dissimilar Rayleigh fading channels , 2006, IEEE Communications Letters.

[5]  Ali H. Bastami,et al.  Optimal SNR-based selection relaying scheme in multi-relay cooperative networks with distributed space-time coding , 2010, IET Commun..

[6]  Behzad Razavi,et al.  RF Microelectronics , 1997 .

[7]  Murat Uysal,et al.  Adaptive bit loading for multi-relay cooperative orthogonal frequency division multiple with imperfect channel estimation , 2012, IET Commun..

[8]  Alexander M. Haimovich,et al.  Decode-and-forward cooperative diversity with power allocation in wireless networks , 2005, GLOBECOM '05. IEEE Global Telecommunications Conference, 2005..

[9]  Paschalis C. Sofotasios,et al.  A Comparative Study of Relaying Schemes with Decode and Forward over Nakagami-m Fading Channels , 2011, J. Comput. Networks Commun..

[10]  Georgios B. Giannakis,et al.  Chance-Constrained Optimization of OFDMA Cognitive Radio Uplinks , 2013, IEEE Transactions on Wireless Communications.

[11]  Moe Z. Win,et al.  Slow Adaptive OFDMA Systems Through Chance Constrained Programming , 2010, IEEE Transactions on Signal Processing.

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

[13]  Masoud Ardakani,et al.  Output-Threshold Multiple-Relay-Selection Scheme for Cooperative Wireless Networks , 2010, IEEE Transactions on Vehicular Technology.

[14]  Yang Yang,et al.  Relay technologies for WiMax and LTE-advanced mobile systems , 2009, IEEE Communications Magazine.

[15]  Mohamed-Slim Alouini,et al.  Switched diversity strategies for dual-hop amplify-and- forward relaying systems , 2012, IET Commun..

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

[17]  Mohamed H. Ahmed,et al.  Performance Analysis of Generalized Selection Combining for Decode-and-Forward Cooperative-Diversity Networks , 2010, 2010 IEEE 72nd Vehicular Technology Conference - Fall.

[18]  Shuai Ma,et al.  Chance Constrained Robust Beamforming in Cognitive Radio Networks , 2013, IEEE Communications Letters.

[19]  Brian D. Woerner,et al.  Joint power allocation and relay selection for multiuser cooperative communication , 2010, IEEE Transactions on Wireless Communications.

[20]  K. J. Ray Liu,et al.  Cooperative communications with relay-selection: when to cooperate and whom to cooperate with? , 2008, IEEE Transactions on Wireless Communications.

[21]  Moe Z. Win,et al.  Robust Power Allocation Algorithms for Wireless Relay Networks , 2010, IEEE Transactions on Communications.

[22]  Yi Gong,et al.  Joint power allocation and relay positioning in multi-relay cooperative systems , 2009, IET Commun..

[23]  Alistair Munro,et al.  Performance comparison of cooperative and non-cooperative relaying mechanisms in wireless networks , 2006, IEEE Wireless Communications and Networking Conference, 2006. WCNC 2006..