Toward Non-Coherent Chaotic Communications: An RIS-Aided Dual M-ary DCSK System - Details

author：

Cai, Xiangming (Cai, Xiangming.) ^[1] | Xu, Weikai (Xu, Weikai.) ^[2] | Wang, Lin (Wang, Lin.) ^[3] | Yuen, Chau (Yuen, Chau.) ^[4] Unfold

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Abstract：

In　this　letter,　we　propose　a　reconfigurable　intelligent　surface　(RIS)-aided　dual　M-ary　differential　chaos　shift　keying　(RIS-DM-DCSK)　system　for　non-coherent　chaotic　communications.　In　RIS-DM-DCSK,　a　dual　M-ary　DCSK　signal　is　designed　to　transmit　twice　the　number　of　modulated　bits　compared　to　a　standard　M-ary　DCSK　signal　while　permutation　index　modulation　is　employed　to　convey　additional　index　bits,　thereby　enhancing　energy　efficiency.　Furthermore,　we　propose　a　permutation　index　detection　and　dual　M-ary　DCSK　demodulation　algorithm　to　recover　the　transmitted　bits.　The　bit　error　probability　(BEP)　of　RIS-DM-DCSK　is　analyzed　over　a　Rayleigh　fading　channel.　Numerical　results　show　that　the　proposed　RIS-DM-DCSK　achieves　superior　bit　error　rate　(BER)　performance　and　energy　efficiency　compared　to　benchmark　schemes.　©　2024　IEEE.　All　rights　reserved.

Keyword：

Benchmarking Error statistics Fading channels Health risks Signal modulation

Community：

[ 1 ] [Cai, Xiangming]Fuzhou University, School of Physics and Information Engineering, Fuzhou; 350108, China
[ 2 ] [Xu, Weikai]Xiamen University, Department of Information and Communication Engineering, Xiamen; 361005, China
[ 3 ] [Wang, Lin]Xiamen University, Department of Information and Communication Engineering, Xiamen; 361005, China
[ 4 ] [Yuen, Chau]Nanyang Technological University, School of Electrical and Electronic Engineering, Jurong West, 639798, Singapore

Reprint 's Address：

[xu, weikai]xiamen university, department of information and communication engineering, xiamen; 361005, china;;

Email：

xweikai@xmu.edu.cn

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Source ：

IEEE Communications Letters

ISSN： 1089-7798

Year： 2025

Issue： 3

Volume： 29

Page： 472-476

3 . 7 0 0

JCR@2023

CAS Journal Grade：3

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30 Days PV： 0

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