Performance analysis of NOMA with generalised selection combining receivers

Vaibhav Kumar; Barry Cardiff; Mark F. Flanagan

Performance analysis of NOMA with generalised selection combining receivers

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Author(s): Vaibhav Kumar¹ ; Barry Cardiff¹ ; Mark F. Flanagan¹
- Affiliations: 1: School of Electrical & Electronic Engineering , University College Dublin , Belfield, Dublin - 4 , Republic of Ireland
Source: Volume 55, Issue 25, 12 December 2019, p. 1364 – 1367
DOI: 10.1049/el.2019.2948 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 03/09/2019, Published 21/10/2019

In this Letter, the authors present a comprehensive performance analysis of a non-orthogonal multiple access (NOMA) system with generalised selection combining (GSC), which bridges the gap between the performance of NOMA with selection combining (SC) and NOMA with maximal-ratio combining (MRC). In particular, the authors derive a closed-form expression for an upper bound on the average achievable sum rate and an exact closed-form expression for the outage probability. The analysis reveals a tradeoff between the number of implemented receiver radio-frequency (RF) chains and the achieved performance and can be used to determine the appropriate number of paths to combine into a practical receiver design. A demonstrated agreement between the analytical and simulation results confirms the correctness of the analysis.

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Performance analysis of NOMA with generalised selection combining receivers

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