On the design of multiuser codebooks for uplink SCMA systems

Bao, J. and Ma, Z. and Ding, Z. and Karagiannidis, G. K. and Zhu, Z. (2016) On the design of multiuser codebooks for uplink SCMA systems. IEEE Communications Letters, 20 (10). pp. 1920-1923. ISSN 1089-7798

[img]
Preview
PDF (lcomm-bao-2596759-proof)
lcomm_bao_2596759_proof.pdf - Accepted Version

Download (697kB)

Abstract

Sparse code multiple access (SCMA) is a promising uplink multiple access technique that can achieve superior spectral efficiency, provided that multidimensional codebooks are carefully designed. In this letter, we investigate the multiuser codebook design for SCMA systems over Rayleigh fading channels. The criterion of the proposed design is derived from the cutoff rate analysis of the equivalent multiple-input multiple-output system. Furthermore, new codebooks with signal-space diversity are suggested, while simulations show that this criterion is efficient in developing codebooks with substantial performance improvement, compared with the existing ones.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Communications Letters
Additional Information:
©2016 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
83099
Deposited By:
Deposited On:
16 Dec 2016 16:42
Refereed?:
Yes
Published?:
Published
Last Modified:
30 Oct 2020 04:07