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Title: NOMA-aided UAV communications over correlated Rician shadowed fading channels
Authors: Tan, Ernest Zheng Hui
Madhukumar, A. S.
Sirigina, Rajendra Prasad
Krishna, Anoop Kumar
Keywords: Engineering::Computer science and engineering
Issue Date: 2020
Source: Tan, E. Z. H., Madhukumar, A. S., Sirigina, R. P. & Krishna, A. K. (2020). NOMA-Aided UAV communications over correlated Rician shadowed fading channels. IEEE Transactions on Signal Processing, 68, 3103-3116. doi:10.1109/TSP.2020.2994781
Project: 10.13039/501100001446
Journal: IEEE Transactions on Signal Processing
Abstract: In this paper, non-orthogonal multiple access (NOMA) is investigated as a viable solution to address spectrum scarcity in unmanned aerial vehicle (UAV) communications. Specifically, the performance analysis of a NOMA-aided UAV communication system (UCS) with dual-diversity receivers on UAVs is conducted over bivariate Rician shadowed fading channels. Using newly obtained closed-form expressions for the joint probability density function (PDF) and joint cumulative distribution function (CDF), the outage probability and finite signal-to-noise ratio (SNR) diversity gain of NOMA-aided UCS are investigated within a stochastic geometry framework. A comprehensive analysis reveals that NOMA-aided UCSs can support more UAVs on the same spectrum than OMA-based systems, with similar outage probability. It is also shown that the cross correlation affects the diversity gain of NOMA-aided and OMA-based UCSs only at low SNR regimes. Therefore, NOMA-aided UCSs can be an attractive alternative over OMA-based UCSs in future wireless systems.
ISSN: 1053-587X
DOI: 10.1109/TSP.2020.2994781
Schools: School of Computer Science and Engineering 
Rights: © 2020 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. The published version is available at:
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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