重庆邮电大学学报（自然科学版）2016，Vol.28Issue(4)：456-461,6.DOI:10.3979/j.issn.1673-825X.2016.04.003
Ad Hoc 网络动态时隙分配的混合 MAC 协议研究与仿真
Research and simulation on a hybrid MAC protocol with dynamic slots allocation in Ad Hoc network
摘要
Abstract
According to the mobility of nodes,multi-hopping share of channels in Ad Hoc networks,hybrid MAC protocol with dynamic slots allocation is presented.The protocol includes two stages:slots allocation and slots competition.During the stage of slots allocation,we adopt the combination of static allocation and dynamic adjustment.On the basis of allocating in-herent time slot of every node,dynamically allocate the time slots of nodes that do not share channels to the communication nodes;In the stage of competition,by means of setting different priorities in sub-frames,in the main slots of nodes that do not take part in communication,data transmission sub frames are divided into real time services competition stage and un-real time services competition stage,and nodes that compete successfully transmit data at this time slot to improve access probabil-ity of preferred business nodes.We simulate the proposed MAC protocol with NS2 network simulation software,and the result shows that the proposed hybrid MAC protocol improves the system packet delivery rate and reduces the average delay real time services.The protocol can improve service quality of real-time services and optimize the whole performance of network.关键词
Ad Hoc 网络/时隙分配/优先级/媒体接入控制(MAC)协议Key words
Ad Hoc networks/allocation of time slots/priority/media access control(MAC)protocol分类
信息技术与安全科学引用本文复制引用
赵龙,李弘扬,叶宁,唐剑,刘晖..Ad Hoc 网络动态时隙分配的混合 MAC 协议研究与仿真[J].重庆邮电大学学报（自然科学版）,2016,28(4):456-461,6.基金项目
国家自然科学基金（U14331156，1151002，61401079，61501038）；中国航天科技集团公司卫星应用研究院创新基金（2014-CXJJ-TX-11）；中央高校基本科研业务费专项资金（N120404003） Foundation ItemsThe National Natural Science Foundation of China （U14331156，1151002，61401079，61501038）；The China Aero-space Science and Technology Corporation Satellite Application Research Institute Innovation Fund（2014-CXJJ-TX-11）；The Special Fundamental Research Fund for Central Universities （）
