Codeword Position Index based Sparse Code Multiple Access System

Lai, Ke, Wen, Lei, Lei, Jing, Chen, Gaojie, Xiao, Pei and Maaref, Amine (2018) Codeword Position Index based Sparse Code Multiple Access System IEEE Wireless Communications Letters.

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Abstract

In this letter, a novel variant of sparse code multiple access (SCMA), called codeword position index based SCMA (CPI-SCMA), is proposed. In this scheme, the information is transmitted not only by the codewords in a M-point SCMA codebook, but also by the indices of the codeword positions in a data block. As such, both the power and transmission efficiency (TE) can be improved. Furthermore, CPI-SCMA can achieve better error rate performance compares to conventional SCMA (C-SCMA) in the region of moderate and high SNRs.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :	Name Email ORCID Lai, Ke Wen, Lei l.wen@surrey.ac.uk Lei, Jing Chen, Gaojie Xiao, Pei P.Xiao@surrey.ac.uk Maaref, Amine
Date :	27 December 2018
DOI :	10.1109/LWC.2018.2890031
Copyright Disclaimer :	© 2018 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 :	5G; SCMA; Index selection; Energy efficient
Depositing User :	Clive Harris
Date Deposited :	29 Jan 2019 14:02
Last Modified :	29 Jan 2019 14:02
URI:	http://epubs.surrey.ac.uk/id/eprint/850308

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