Symbol error rate analysis of non-orthogonal multiple access systems

Non-orthogonal multiple access (NOMA) systems use superposition coding (SC) at transmitter and successive interference cancellation (SIC) at the receiver in order to simultaneously transmit the messages of multiple users. In this paper, closed from expressions for the symbol error rate (SER) of supe...

Full description

Saved in:
Bibliographic Details
Published in:Physical communication 2021-06, Vol.46, p.101295, Article 101295
Main Authors: Alkhazzar, Ali Mohammed A., Aghaeinia, Hassan
Format: Article
Language:English
Subjects:
Non-orthogonal multiple access
Successive interference cancellation
Superposition coding
Symbol error rate
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Non-orthogonal multiple access (NOMA) systems use superposition coding (SC) at transmitter and successive interference cancellation (SIC) at the receiver in order to simultaneously transmit the messages of multiple users. In this paper, closed from expressions for the symbol error rate (SER) of superposition codes are derived. Moreover, an approximate expression is presented and it is shown that it closely follows the exact symbol error rate. The derived formulas are applicable to general scenarios with N users when each individual user uses pulse amplitude modulation (PAM) or quadrature amplitude modulation (QAM) signalling with arbitrary constellation sizes. While the error expressions are for additive white Gaussian noise (AWGN) channels, it will be shown that they can be extended to fading channels. Numerical simulations verify the validity of both expressions.
ISSN:1874-4907
1876-3219
DOI:10.1016/j.phycom.2021.101295