Decentralized Relay Selection in Multi-User Multihop Decode-and-Forward Relay Networks
Rajitha Senanayake, Saman Atapattu, Jamie S Evans, Peter J Smith
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | Published : 2018
This paper analyzes the performance of a multi-user multihop relay network using a low complexity decentralized relay selection (DRS) scheme for decode-and-forward cooperative networks. We carry out a rigorous diversity order analysis, with Nakagami- m fading and pathloss and show that the DRS scheme achieves full diversity while maintaining a complexity that is quadratic in the number of users, quadratic in the number of relays and independent of the number of hops. For a special case of two-user networks we derive exact closed-form expressions for the outage probability by considering the order statistics. Furthermore, we extend our analysis to consider interfering relay networks and deriv..View full abstract
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Awarded by Australian Research Council
This work was supported in part by the Australian Research Council through the Discovery Early Career Researcher Award under Grant DE180100501 and Grant DE160100020 and in part by the Discovery Project under Grant DP140101050. The associate editor coordinating the review of this paper and approving it for publication was J. M. Romero-Jerez.