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Resource Allocation Algorithm for Internet of Vehicles Based on LTE-V2XChinese Full Text

YU Xiang;CHEN Xiaodong;WANG Zheng;SHI Xueqin;School of Communication and Information Engineering,Chongqing University of Posts and Telecommunications;

Abstract: In the LTE-V2 X system of Internet of Vehicles(IoV),there are two ways of resource allocation:centralized mode and distributed mode.To address the problems faced by the Sense-based semi-Persistent Schedule(SPS)resource allocation algorithm for distributed mode,such as half-duplex errors,hidden terminal errors and resource block conflicts,this paper proposes an improved SPS algorithm based on driving direction for freeway scenarios. According to the characteristics of the driving direction on freeway,the resource pool is divided into two sub-pools to reduce the potential interference between the vehicles going in opposite directions. On this basis,each resource block is allowed to carry location information to reduce the collision probability of the SPS algorithm when resources are reselected.Experimental results show that the proposed algorithm can significantly improve the Packet Reception Ratio(PRR)compared with the existing SPS algorithm.
  • DOI:

    10.19678/j.issn.1000-3428.0056935

  • Series:

    (I) Electronic Technology & Information Science; (C) Architecture/ Energy/ Traffic/ Electromechanics, etc

  • Subject:

    Highway and Waterway Transportation; Telecom Technology; Computer Software and Application of Computer

  • Classification Code:

    U495;TN929.5

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