车联网中基于模糊逻辑处理的多跳广播协议  

Multi-hop broadcast protocol in VANET based on fuzzy logic approach

作　　者：廖恩瑞 潘燕燕 宋祥 

机构地区：[1]福州大学数学与计算机科学学院,福建福州350108 [2]福州大学福建省网络计算与智能信息处理重点实验室,福建福州350108

出　　处：《信息技术与网络安全》2018年第2期68-71,76,共5页Information Technology and Network Security

摘　　要：多跳广播是车联网中告警消息传播的关键技术之一。在真实环境下,由于车辆的高速移动、网络信号不稳定等若干因素容易造成大量失真数据。现有的多跳广播协议在选择中继转发节点时,往往忽略了失真数据所带来的不良影响,从而导致其实际广播应用效果不佳。综合考虑交通环境下无线网络信号的可靠性、消息传输的实时性及道路交通状况信息,提出了一种基于模糊逻辑处理的广播协议(MBOF),该协议首先采用模糊逻辑选择中继节点,提高广播机制的容错能力,确保告警消息的定向传输,然后通过使用候补转发机制来降低告警消息丢失率。实验结果表明,MBOF协议在容错能力上较相关协议有较大提高。Multi-hop broadcast is a key technique to disseminate warning messages in Vehicular Ad hoc Networks （VANETs）. Vehicle high mobility and network signal instability, will result in the error data in message in real traffic environment. The existing protocols often overlook the adverse effects from error data, preventing protocols from achieving good application effect of broadcasting. Considering that the reliability of signal, the real-time in data transmission and road conditions, we designed MBOF, a multi-hop broadcast protocol in VANET based on iuzzy logic. MBOF firstly integrates the method of fuzzy logic to choose transmission node to improve protocol＇ s fault tolerance and ensure data-directed transmission, and then uses alternate forwarding mechanism to decrease lost rate of warning message. Simulation results show that MBOF provides improvement on fauh tolerance.

关 键 词：车联网 多跳广播 模糊逻辑 容错能力 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]