Performance Analysis of NOMA-Based Cooperative Relaying in alpha-μ Fading Channels
|Title:||Performance Analysis of NOMA-Based Cooperative Relaying in alpha-μ Fading Channels||Authors:||Kumar, Vaibhav; Cardiff, Barry; Flanagan, Mark F.||Permanent link:||http://hdl.handle.net/10197/11113||Date:||24-May-2019||Online since:||2019-10-07T13:31:44Z||Abstract:||Non-orthogonal multiple access (NOMA) is widely recognized as a potential multiple access technology for efficient radio spectrum utilization in the fifth-generation (5G) wireless communications standard. In this paper, we study the average achievable rate and outage probability of a cooperative relaying system (CRS) based on NOMA (CRS-NOMA) over wireless links governed by the α-μ generalized fading model; here α and μ designate the nonlinearity and clustering parameters, respectively, of each link. The average achievable rate is represented in closed-form using Meijer's G-function and the extended generalized bivariate Fox's H-function (EGBFHF), and the outage probability is represented using the lower incomplete Gamma function. Our results confirm that the CRS-NOMA outperforms the CRS with conventional orthogonal multiple access (CRS-OMA) in terms of spectral efficiency at high transmit signal-to-noise ratio (SNR). It is also evident from our results that with an increase in the value of the nonlinearity/clustering parameter, the SNR at which the CRS-NOMA outperforms its OMA based counterpart becomes higher. Furthermore, the asymptotic analysis of the outage probability reveals the dependency of the diversity order of each symbol in the CRS-NOMA system on the α and μ parameters of the fading links.||Funding Details:||European Commission - European Regional Development Fund
Science Foundation Ireland
|Type of material:||Conference Publication||Publisher:||IEEE||Copyright (published version):||2019 IEEE||Keywords:||5G mobile communication; Cooperative communication; Relay networks||DOI:||10.1109/ICC.2019.8761527||Other versions:||https://icc2019.ieee-icc.org/||Language:||en||Status of Item:||Unspecified||Is part of:||2019 IEEE International Conference on Communications (ICC), Shanghai, China, 20-24 May 2019: Proceedings||Conference Details:||2019 IEEE International Conference on Communications (ICC 2019), Shanghai, China, 20-24 May 2019||ISBN:||9781538680889|
|Appears in Collections:||Electrical and Electronic Engineering Research Collection|
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