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<p>This manuscript proposes a novel generalized Reed-Solomon coded cooperative differential spatial modulation (GRSCC-DSM) scheme for small-scale wireless communication over the quasi-static Rayleigh fading channels. Specifically, two generalized Reed-Solomon (GRS) codes are distributed at the source and relay terminals, where the relay’s information depends on the message from the source. Moreover, the differential spatial modulation (DSM) technique is employed in the proposed scheme to obtain more diversity gains. Compared to the optimal maximum likelihood (ML) detection for the DSM, a reduced-complexity Euclidean distance superposition (EDS) detection algorithm is proposed to optimize the system complexity with minimal effect on performance. Besides, based on the unique algebraic structure of the GRS code and the consecutive relay symbol selection, a joint decoding algorithm is developed at the destination to further improve the bit-error-rate (BER) performance. The Monte-Carlo simulation results indicate that the proposed GRSCC-DSM scheme utilizing the novel joint decoding outperforms the corresponding non-cooperative counterpart by over 1.8 dB gain as well as the existing comparable coded cooperative schemes by more than 1.6 dB gains under identical conditions in high signal-to-noise-ratio (SNR) regions.</p>

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Generalized Reed-Solomon coded cooperative differential spatial modulation with low-complexity detection and joint decoding for wireless communication

  • 期刊论文

  • 发表日期：

    2025年3月25日

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  • Chen Chen,
  • Fengfan Yang

摘要

This manuscript proposes a novel generalized Reed-Solomon coded cooperative differential spatial modulation (GRSCC-DSM) scheme for small-scale wireless communication over the quasi-static Rayleigh fading channels. Specifically, two generalized Reed-Solomon (GRS) codes are distributed at the source and relay terminals, where the relay’s information depends on the message from the source. Moreover, the differential spatial modulation (DSM) technique is employed in the proposed scheme to obtain more diversity gains. Compared to the optimal maximum likelihood (ML) detection for the DSM, a reduced-complexity Euclidean distance superposition (EDS) detection algorithm is proposed to optimize the system complexity with minimal effect on performance. Besides, based on the unique algebraic structure of the GRS code and the consecutive relay symbol selection, a joint decoding algorithm is developed at the destination to further improve the bit-error-rate (BER) performance. The Monte-Carlo simulation results indicate that the proposed GRSCC-DSM scheme utilizing the novel joint decoding outperforms the corresponding non-cooperative counterpart by over 1.8 dB gain as well as the existing comparable coded cooperative schemes by more than 1.6 dB gains under identical conditions in high signal-to-noise-ratio (SNR) regions.