Performance Advantage of Joint Source-Channel Decoder over Iterative Receiver under M-ary Differential Chaotic Shift Keying Systems

In order to improve the error performance of M-ary differential chaotic shift keying (DCSK) systems over multi-path fading channel, two types of iterative structures have been employed in receiver design. One is joint source-channel decoder (JSCD), the other is iterative receiver (IR). Although seve...

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Bibliographic Details
Published in2016 IEEE 83rd Vehicular Technology Conference (VTC Spring) pp. 1 - 5
Main Authors Yibo Lyu, Lin Wang, Zixiang Xiong
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2016
Subjects
Chaotic communication
Decoding
Demodulation
Fading channels
Iterative decoding
Receivers
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Summary:In order to improve the error performance of M-ary differential chaotic shift keying (DCSK) systems over multi-path fading channel, two types of iterative structures have been employed in receiver design. One is joint source-channel decoder (JSCD), the other is iterative receiver (IR). Although several works have separately addressed the advantages of IR and JSCD, it is not clear which design provides more iterative gain for M-ary DCSK systems over multi-path fading channels. In this work, we employ the extrinsic information transfer (EXIT) chart technique to analyze the iteration behavior of JSCD and IR. Simulation results suggest that with enough source redundancy, JSCD outperforms IR under M-ary DCSK systems over multi-paths fading channels.
DOI:10.1109/VTCSpring.2016.7504399