摘要
提出了一种基于分簇结构的移动自组织网络(MANETs)接入控制协议(CM-MAC).该协议主要适用于大规模多跳移动自组织网络,采用分簇技术将整个大规模网络分成多个簇,每个簇拥有不同的工作频段,各个簇之间互不干扰.簇内采用了动态时分多址协议,每个节点根据自身业务强度动态地占用网络资源,簇与簇之间通过网关节点实现跨簇通信.本文采用了OPNET Modeler进行网络建模和仿真,仿真结果表明:在大规模拓扑网络中,CM-MAC协议比标准USAP协议的吞吐量提升了约2.2倍,时隙复用率提升了约4倍,端到端延时降低了约3倍.
CM-MAC protocol proposed is a Mobile A d Hoc Networks （ MANETs ） medium access control（MAC ） protocol based on clustering structure.The protocol is mainly applicable to large- scale multi-hop mobile ad hoc networks. It uses clustering technology to divide the entire large-scale network into many clusters. These clusters do not interfere with each other because eachcluster has a different operating frequency band. In a cluster,a dynamic T D M A protocol is used and network resources are dynamically occupied by nodes according to their traffic lows. Inter-cluster communication is realized through gateway nodes. In the end we use OPNET Modeler software to model and simulate the CM-MAC protocol. The results show that, the large-scalenetwork,the CM-MAC protocol tncreases throughput at about 2.2 timerate at about 4 times,and reduces the end-to-end delay at about 3 times than the standard USAP protocol.
作者
刘强
袁万刚
LIUQiang;YUANWangang(School of Computer and Information T＇ cchnology,Beijing Jiaotong University,Beijing 100044,China)
出处
《北京交通大学学报》
CAS
CSCD
北大核心
2018年第2期54-60,共7页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
国家自然科学基金(61572220)~~
关键词
移动自组织网络
分簇
媒体接入控制协议
时分多址
mobile Ad Hoc networks
clustering
medium access control protocol
time division multiple access
