基于协同通信的移动自组网广播方案设计  

Broadcasting Scheme Design for MANET Based on Cooperative Communication

作　　者：陶建军 黄勤 胡飞[1] 王常虎 杨海芬[2] TAO Jianjun;HUANG Qin;HU Fei;WANG Changhu;YANG Haifen(Southwest China Institute of Communications,Chengdu Sichuan 610041,China;University of Electronic Science and Technology of China,Chengdu Sichuan 611731,China)

机构地区：[1]西南通信研究所,四川成都610041 [2]电子科技大学,四川成都611731

出　　处：《通信技术》2023年第7期854-861,共8页Communications Technology

摘　　要：移动自组网中大多采用冲突避免协议,广播时存在大量的冗余数据及信道冲突,在复杂的信道环境下会降低系统的通信效率。结合协同通信与动态时隙分配技术,提出了一种基于协同通信的移动自组网广播方案。该方案分成竞争、控制报文和数据传输3个阶段。竞争阶段利用基于载波侦听多址访问(Carrier Sense Multiple Access,CSMA)的广播网络洪泛少量竞争报文,分配广播权限;控制报文阶段结合协同通信,利用时隙分配算法完成节点的时隙分配;数据传输阶段,利用协同通信结合时分多址(Time Division Multiple Access,TDMA)动态时隙分配算法,使得节点能够充分利用信道资源进行数据发送,避免节点间的相互竞争,提高数据传输效率。Because most of MANET adopt conflict avoidance protocols,there are a lot of redundant data and channel conflicts during broadcasting,and the complexity of the channel environment further reduces the communication efficiency of the system.By utilizing cooperative communication and dynamic time slot allocation technology,a broadcasting scheme for MANET based on cooperative communication is proposed.The scheme is divided into competition stage,control message stage and data transmission stage.In the competition stage,the broadcasting network based on CSMA(Carrier Sense Multiple Access)broadcasts a small number of competing messages and allocates broadcast permissions.In the control message stage,combined with cooperative communication,the time slot allocation algorithm is used to complete the time slot allocation of nodes.In the data transmission stage,by using the cooperative communication and TDMA(Time Division Multiple Access)dynamic time slot allocation algorithm,nodes can make full use of channel resources to transmit data,avoiding competition among nodes,and improving data transmission efficiency.

关 键 词：移动自组网 协同通信 时分多址 广播网络 载波侦听多址访问 

分 类 号：TN913.3[电子电信—通信与信息系统]