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NOMA-Based Irregular Repetition Slotted ALOHA for Satellite Networks

Shao, Xinye, Sun, Zhili, Yang, Mingchuan, Gu, Sai and Guo, Qing (2019) NOMA-Based Irregular Repetition Slotted ALOHA for Satellite Networks IEEE Communications Letters.

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Abstract

In this letter, a non-orthogonal multiple access (NOMA) scheme is employed for irregular repetition slotted ALOHA (IRSA). Specifically, packet replicas are transmitted with discrete power levels which are pre-determined by the NOMA scheme. In this case, most packet collisions can be resolved in the power domain, contributing to a much lower packet loss rate. Density evolution (DE) analysis is formulated and the degree distributions are optimized for different number of power levels. Simulation results validate our analysis and show that the proposed scheme can outperform existing IRSA schemes.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
NameEmailORCID
Shao, Xinye
Sun, ZhiliZ.Sun@surrey.ac.uk
Yang, Mingchuan
Gu, Saisai.gu@surrey.ac.uk
Guo, Qing
Date : 19 February 2019
DOI : 10.1109/LCOMM.2019.2900319
Copyright Disclaimer : © 2019 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.
Uncontrolled Keywords : Irregular repetition slotted ALOHA; Non-orthogonal multiple access; Interference cancellation; Diversity; Satellite communication; NOMA; Interference; Signal to noise ratio; Silicon carbide; Satellites; Machine-to-machine communications; Receivers
Depositing User : Clive Harris
Date Deposited : 05 Mar 2019 14:04
Last Modified : 05 Mar 2019 14:04
URI: http://epubs.surrey.ac.uk/id/eprint/850670

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