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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.
In order to reduce the delay and conflict, a hybrid beaconless geographical location routing protocol (HBGR) is proposed.The goal of HBGR is to reduce the end-to-end delay of delay-sensitive data packets while ensuring that the normal data The impact of packets is as small as possible.HBGR provides different transport services for different types of data through a hybrid RTS / CTS handshake mechanism, assigning different contention windows for normal data and delay-sensitive data during channel contention, and At the same time, a scheme based on distance forwarding region is also proposed to optimize the choice of forwarder (next hop node). The simulation results show that under different network congestion levels, both static and moving scenes, Compared with AODV, HBGR performs well in packet reachability, end-to-end delay and energy consumption.