Senanayake 2018 Decentralized relay selection in multi-user multihop decode-and.pdf (797.62 kB)

Decentralized Relay Selection in Multi-User Multihop Decode-and-Forward Relay Networks

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posted on 26.03.2021, 01:44 by R Senanayake, S Atapattu, JS Evans, Peter Smith
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 derive an accurate lower bound on the outage of an arbitrary network user. Based on the lower bound we also show how the outage probability saturates in the high signal-to-interference-plus-noise ratio regime. Extensive numerical examples are used to illustrate the accuracy of the analysis and to highlight the use of the DRS scheme in multi-user multihop relay networks. © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

History

Preferred citation

Senanayake, R., Atapattu, S., Evans, J. S. & Smith, P. J. (2018). Decentralized Relay Selection in Multi-User Multihop Decode-and-Forward Relay Networks. IEEE Transactions on Wireless Communications, 17(5), 3313-3326. https://doi.org/10.1109/TWC.2018.2809748

Journal title

IEEE Transactions on Wireless Communications

Volume

17

Issue

5

Publication date

01/05/2018

Pagination

3313-3326

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Publication status

Published

Contribution type

Article

ISSN

1536-1276

eISSN

1558-2248

Language

en