电力物联网D2D通信中模式预选的多播重传技
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徐江涛(1992-),男,硕士,高级工程师,主要从事电力无线通信网络技术研究;E-mail:136933974@qq.com

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TM76

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国家电网公司总部科技项目(5210EF180009)


A multicast retransmission scheme based on the preselected mode for D2D communications of electric internet of things networks
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    摘要:

    针对电力物联网 D2D通信中的模式预选问题,提出多播重传机制。首先,通过分析 D2D 传输的集中式和分布式2种重传方案的优势和不足,提出一种新的基于重传模式预选的 D2D 多播重传方案。新方案通过簇头汇总 D2D多播 ACK 状态和簇内链路质量,避免了集中式方案中上行汇报信令开销太大的问题;同时,通过让簇头来决定重传方案后再上报基站的方式,避免了分布式重传方案中预留资源带来的资源浪费问题。簇头充分考虑 D2D 链路差异,根据 D2D链路质量自适应地选择最优传输节点,可充分利用 D2D 链路的多信道分集增益。理论分析和计算机仿真验证方案在信令开销和传输效率方面的有效性。

    Abstract:

    This article presents a novel multicast retransmission scheme for wireless communication network in the ubiquitous electric internet of things. Firstly, the advantages and disadvantages of two retransmission schema, the centralized and distributed, are analyzed. Then, a new method is consequently proposed based on retransmission mode preselection. Instead of the approach of the UEs in the centralized scheme, the proposed method's signaling cost is significantly reduced through reporting ACK/NACK and link quality by the cluster head UE. The proposed method can avoid resource waste of the base station to reserve wireless resource for retransmission. In addition, the cluster head can exploit the multicast gain and multichannel diversity gain jointly. Finally, the computer simulations verify the effectiveness of both the cost and the efficiency of the proposed method.

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徐江涛,姜海波,刘洋,胡成博,路永玲.电力物联网D2D通信中模式预选的多播重传技[J].电力科学与技术学报,2021,(4):196-202. Xu Jiangtao, Jiang Haibo, Liu Yang, Hu Chengbo, Lu Yongling. A multicast retransmission scheme based on the preselected mode for D2D communications of electric internet of things networks[J]. JOURNAL OF EIECTRIC POWER SCIENCE AND TECHNOLOGY,2021,(4):196-202.

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  • 在线发布日期: 2021-08-28
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