New Parallel Interference Cancellation for Coded MC-DS-CDMA

DOI

10.2991/cimns-16.2016.83How to use a DOI?

Keywords

multi-carrier; code division multi-access; log-likelihood rate (LLR); frequency diversity; BCJR algorithm

Abstract

In this paper, by the application of Turbo principle, a new parallel interference cancellation and decoding (PIC/decoding) algorithm for convolutionally-coded multi-carrier DS-CDMA (MC-DS-CDMA) is proposed. We give a detailed description of the proposed algorithm, and further mathematical analysis is also performed over it. The numerical simulation is made and corresponding results are obtained. From the numerical results we conclude that the proposed algorithm acquires much better performance than the conventional PIC/decoding, and what's more, if a posteriori log-likelihood rate (LLR) rather than a priori LLR is used to estimate the tentative values at each interference cancellation stage, the proposed algorithm exihibits more dominant performance advantages.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Guoxiong Xu
AU  - Feng Ji
PY  - 2016/09
DA  - 2016/09
TI  - New Parallel Interference Cancellation for Coded MC-DS-CDMA
BT  - Proceedings of the 2016 International Conference on Communications, Information Management and Network Security
PB  - Atlantis Press
SP  - 333
EP  - 336
SN  - 2352-538X
UR  - https://doi.org/10.2991/cimns-16.2016.83
DO  - 10.2991/cimns-16.2016.83
ID  - Xu2016/09
ER  -