Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart Planning, IMDC-SDSP 2020, Cyperspace, 28-30 June 2020

Research Article

Enhancement of Differential Chaos Shift Keying Communication System Based on LDPC Codes

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  • @INPROCEEDINGS{10.4108/eai.28-6-2020.2297915,
        author={Mahmood  Mosleh and Fadhil  Hasan and Aya  Abdulhameed},
        title={Enhancement of Differential Chaos Shift Keying Communication System Based on LDPC Codes},
        proceedings={Proceedings of the 1st International Multi-Disciplinary Conference Theme: Sustainable Development and Smart Planning, IMDC-SDSP 2020, Cyperspace, 28-30 June 2020},
        publisher={EAI},
        proceedings_a={IMDC-SDSP},
        year={2020},
        month={9},
        keywords={differential chaos shift keying (dcsk) ldpc codes bit-flipping log domain prop domain min-sum iterative receiver},
        doi={10.4108/eai.28-6-2020.2297915}
    }
    
  • Mahmood Mosleh
    Fadhil Hasan
    Aya Abdulhameed
    Year: 2020
    Enhancement of Differential Chaos Shift Keying Communication System Based on LDPC Codes
    IMDC-SDSP
    EAI
    DOI: 10.4108/eai.28-6-2020.2297915
Mahmood Mosleh1,*, Fadhil Hasan2, Aya Abdulhameed1
  • 1: Department of Computer Engineering Techniques, Middle Technical University Baghdad, Iraq
  • 2: Department of Electrical Engineering, Al Mustansiriyah University Baghdad, Iraq.
*Contact email: drmahfa@yahoo.com

Abstract

LDPC code is a preferred channel code used in modern communication because of its robustness to mitigate the huge noise. In this paper, LDPC with four decoder types is combined with Differential Chaos Shift Keying (DCSK) communication system under AWGN channel. The system is simulated using MATLAB program version 2019a with various amounts of half spreading factor, β ∈ {8, 16, and 32}. The results show that a coding gain is achieved in a range of (1.3 – 4.6) dB between the coded and uncoded DCSK system. Also, log domain decoder is the best decoder among all types, while hard decision bit flipping decoder appears the worst case in contrast with its simplicity.