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Design of SCMA Codebooks Based on Golden Angle Modulation

Mheich, Zeina, Wen, Lei, Xiao, Pei and Maaref, Amine (2018) Design of SCMA Codebooks Based on Golden Angle Modulation IEEE Transactions on Vehicular Technology.

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In this paper, we propose to use golden angle modulation (GAM) points to construct codebooks for uplink and downlink sparse code multiple access (SCMA) systems. We provide two categories of codebooks with one and two optimization parameters respectively. The advantages of the proposed design method are twofold: 1) the number of optimization variables is independent of codebook and system parameters; 2) it is simple to implement. In the downlink, we use GAM points to build a multidimensional mother constellation for SCMA codebooks, while in the uplink GAM points are directly mapped to user codebooks. The proposed codebooks exhibit good performance with low peak to average power ratio (PAPR) compared to the codebooks proposed in the literature based on constellation rotation and interleaving.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering
Authors :
Wen, Lei
Maaref, Amine
Date : 2018
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 : Sparse code multiple access, codebook design, golden angle modulation, mapping, PAPR reduction.
Depositing User : Melanie Hughes
Date Deposited : 20 Nov 2018 16:54
Last Modified : 20 Nov 2018 16:54

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