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Decentralized Relay Selection in Multi-User Multihop Decode-and-Forward Relay Networks
journal contribution
posted on 2021-03-26, 01:44 authored by R Senanayake, S Atapattu, JS Evans, Peter SmithPeter SmithThis 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.
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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.2018.2809748Publisher DOI
Journal title
IEEE Transactions on Wireless CommunicationsVolume
17Issue
5Publication date
2018-05-01Pagination
3313-3326Publisher
Institute of Electrical and Electronics Engineers (IEEE)Publication status
PublishedContribution type
ArticleISSN
1536-1276eISSN
1558-2248Language
enUsage metrics
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Keywords
Decode-and-forwardmultihop networksoutage probabilityrelay selectionScience & TechnologyTechnologyEngineering, Electrical & ElectronicTelecommunicationsEngineeringCOOPERATIVE NETWORKSPERFORMANCE ANALYSISPATH SELECTIONDIVERSITYSTRATEGIESSINGLENetworking & TelecommunicationsElectrical and Electronic EngineeringCommunications TechnologiesWireless CommunicationsDistributed Computing
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