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<p>With the rapid development of Internet of Things, service diversification puts forward higher requirements for transmission reliability, resource utilization and differentiated quality of service of communication networks. This paper proposes a priority-aware hybrid access and resource optimization scheme for power line and wireless dual-medium communication networks. A hybrid super frame structure combining Carrier Sensitive Access with Contention Avoid (CSMA/CA) and Time Division Multiple Access (TDMA) is constructed to ensure deterministic transmission of high priority services through dynamic resource allocation. A segmented CSMA/CA access strategy is designed to provide differentiated access opportunities for different priority nodes through time domain isolation. In the data transmission phase, a dynamic hybrid relay strategy based on dual thresholds is adopted to adaptively select the optimal relay scheme according to channel conditions. Simulation results show that compared with traditional single protocol, this scheme has significant advantages in system throughput, delay control and reliability of high priority services.</p>

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Hybrid access and resource optimization method for power line and wireless dual-mode communication based on service grade

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月23日

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  • Xiaojia Sun,
  • Kehuan Wen,
  • Xiaowei Chen,
  • Zening Xu

摘要

With the rapid development of Internet of Things, service diversification puts forward higher requirements for transmission reliability, resource utilization and differentiated quality of service of communication networks. This paper proposes a priority-aware hybrid access and resource optimization scheme for power line and wireless dual-medium communication networks. A hybrid super frame structure combining Carrier Sensitive Access with Contention Avoid (CSMA/CA) and Time Division Multiple Access (TDMA) is constructed to ensure deterministic transmission of high priority services through dynamic resource allocation. A segmented CSMA/CA access strategy is designed to provide differentiated access opportunities for different priority nodes through time domain isolation. In the data transmission phase, a dynamic hybrid relay strategy based on dual thresholds is adopted to adaptively select the optimal relay scheme according to channel conditions. Simulation results show that compared with traditional single protocol, this scheme has significant advantages in system throughput, delay control and reliability of high priority services.