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Error analysis of NOMA-based user cooperation with SWIPT

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Details

Original languageEnglish
Title of host publicationProceedings - 15th Annual International Conference on Distributed Computing in Sensor Systems, DCOSS 2019
PublisherIEEE
Pages507-513
Number of pages7
ISBN (Electronic)9781728105703
DOIs
Publication statusPublished - 1 May 2019
Publication typeA4 Article in a conference publication
EventAnnual International Conference on Distributed Computing in Sensor Systems - Santorini Island, Greece
Duration: 29 May 201931 May 2019

Conference

ConferenceAnnual International Conference on Distributed Computing in Sensor Systems
CountryGreece
CitySantorini Island
Period29/05/1931/05/19

Abstract

The present contribution analyzes the performance of non-orthogonal multiple access (NOMA)-based user cooperation with simultaneous wireless information and power transfer (SWIPT). In particular, we consider a two-user NOMA-based cooperative SWIPT scenario, in which the near user acts as a SWIPT-enabled relay that assists the farthest user. In this context, we derive analytic expressions for the pairwise error probability (PEP) of both users assuming the both amplify-and-forward (AF) and decode-and-forward (DF) relay protocols. The derived expressions are expressed in closed-form and have a tractable algebraic representation which renders them convenient to handle both analytically and numerically. In addition to this, we derive a simple asymptotic closed-form expression for the PEP in the high signal-to-noise ratio (SNR) regime which provide useful insights on the impact of the involved parameters on the overall system performance. Capitalizing on this, we subsequently quantify the maximum achievable diversity order of both users. It is shown that numerical and simulation results corroborate the derived analytic expressions. Furthermore, the offered results provide interesting insights into the error rate performance of each user, which are expected to be useful in future designs and deployments of NOMA based SWIPT systems.