混合式beaconless基于地理位置的路由协议  

Hybrid beaconless geographic routing protocol

作　　者：张玉芳[1] 洪超[1] 徐维波[1] 冯永[1] Zhang Yufang Hong Chao Xu Weibo Feng Yong(School of Computer Science, Chongqing University, Chongqing 400044, Chin)

机构地区：[1]重庆大学计算机学院,重庆400044

出　　处：《华中科技大学学报（自然科学版）》2016年第11期64-69,共6页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：赛尔网络下一代互联网技术创新项目(NGII20150706);国家高技术研究发展计划资助项目(2015AA015308);重庆市基础与前沿研究计划资助项目(cstc2014jcyjA40037)

摘　　要：以减小延迟和冲突为切入点,提出了一种混合式beaconless基于地理位置路由协议(HBGR).HBGR的目标是在减少时延敏感数据报文的端到端时延的同时确保对普通数据报文的影响尽可能小.HBGR通过混合式RTS/CTS握手机制为不同类型的数据提供不同的传输服务,在信道争用过程中为普通数据和时延敏感数据分配不同的争用窗口.与此同时,还提出一种基于距离转发区域划分的方案来优化转发者(下一跳节点)选择.仿真结果表明:在不同的网络拥塞度下,无论是静止场景还是移动场景,与GF,OGF和AODV相比,HBGR在报文可达率、端到端时延以及能量消耗方面都表现良好.A hybrid beaconless geographic routing（HBGR）was proposed.The goal of HBGR was to accelerate the delivery of delay sensitive packets with little impact on normal packets.Hybrid RTS/CTS handshaking mechanism was used to provide different transmission services for different kinds of packets.With respect to channel contention,HBGR assigned different contention windows（CW）to two kinds of packets.Distance based forwarding area division scheme was also introduced in order to optimize the forwarder selection ensuring the candidate forwarders.Compared with GF,OGF and AODV,the simulation results show the superior performance of HBGR in terms of packet delivery ratio,end-to-end latency,and energy consumption per packet,under different levels of congestion in stationary and mobility scenario.

关 键 词：无线传感器网络 基于地理位置路由 RTS/CTS握手 信道争用 转发区域划分 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]