Cluster-Based Interference-Free MAC Protocol with Load Aware in Software Defined VANET  

作　　者：Yangshui Gao Tao Luo Xinxin He Zhilong Zhang 

机构地区：[1]Beijing Laboratory of Advanced Information Networks,Beijing University of Posts and Telecommunications,Beijing 100876,China [2]Beijing Key Laboratory of Network System Architecture and Convergence,Beijing University of Posts and Telecommunications,Beijing 100876,China [3]School of Mathematics and Computer,Dali University,Dali 671003,China

出　　处：《China Communications》2020年第12期217-234,共18页中国通信（英文版）

摘　　要：In order to reduce the interference,a novel,cluster-based medium access control(MAC)protocol with load aware for VANETs is proposed in this paper.First,all vehicles on roads are grouped into stable clusters in the light of their direction,number of neighbors,link reliability,and traffic load.By utilizing the advantages of centralized control in software defined VANETs(SDVN),cluster stability can be maintained in real-time.Second,a contention-free MAC mechanism composed of inter-cluster multi-channel allocation and intra-cluster dynamic TDMA frame allocation is proposed to prevent co-channel interference and hidden terminal interference.Simulation results show that the proposed protocol outperforms some existing protocols in cluster stability,delivery ratio,throughput and delay performance.

关 键 词：SDVN MAC co-channel interference non-safety services CLUSTER 

分 类 号：U495[交通运输工程—交通运输规划与管理] U463.67[交通运输工程—道路与铁道工程]