Journal article

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

Abstract

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..

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