用于VANET紧急消息传输的改进二元分割广播协议

doi:10.11959/j.issn.1000-0801.2015199

电信科学 ›› 2015, Vol. 31 ›› Issue (9): 143-148.doi: 10.11959/j.issn.1000-0801.2015199

用于VANET紧急消息传输的改进二元分割广播协议

程黛月,章国安,叶翔

南通大学电子信息学院南通226019

出版日期:2015-09-15 发布日期:2015-09-05
基金资助:
国家自然科学基金资助项目;国家自然科学基金资助项目;交通运输部应用基础研究基金资助项目

Modified Binary Partition Assisted Broadcast Protocol for Emergency Message Dissemination in VANET

Daiyue Cheng,Guoan Zhang,Xiang Ye

School of Electronics and Information of Nantong University, Nantong 226019, China

Online:2015-09-15 Published:2015-09-05
Supported by:
The National Natural Science Foundation of China;The National Natural Science Foundation of China;Project of Ministry of Transport of the People's Republic of China

摘要/Abstract

摘要：

摘要：针对车辆自组织网络（vehicular Ad Hoc network,VANET）中紧急消息的传输，提出一个改进的二元分割广播（MBPAB）协议。协议将通信范围迭代划分成小的区域，寻找离发送节点最远区域内的车辆，对紧急消息执行转发，通过减少转发跳数，提高消息传播速度。通过引入MAC（medium access control）子层的微型分布式帧间间隔（mini-DIFS），赋予对紧急消息以更高的优先级接入通信信道。仿真结果表明，在VANET 中， MBPAB协议与现有的广播协议相比，在通信时延和消息传播速度方面有更好的性能表现。

关键词: 车辆自组织网络, 紧急消息传输, 多跳广播协议

Abstract:

A modified binary partition assisted broadcast（MBPAB）protocol was proposed, which was designed for emergency messages dissemination in vehicular Ad Hoc network（VANET）. The protocol divided the communication range into small sectors, and sought the farthest possible nodes in the farthest sector from the sender node to be the forwarding node to increase the dissemination speed by reducing the forwarding hops. A mini distributed inter-frame space（mini-DIFS）in a medium access control（MAC）sublayer was introduced to give the emergency messages a higher access priority to the communication channel compared with other messages. The results demonstrate that MBPAB protocol outperforms benchmarks of the existing broadcast protocols in VANET in terms of communication delay and the average message dissemination speed.

Key words: vehicular Ad Hoc network, emergency message transmission, multi-hop broadcast protocol

程黛月,章国安,叶翔. 用于VANET紧急消息传输的改进二元分割广播协议[J]. 电信科学, 2015, 31(9): 143-148.

Daiyue Cheng,Guoan Zhang,Xiang Ye. Modified Binary Partition Assisted Broadcast Protocol for Emergency Message Dissemination in VANET[J]. Telecommunications Science, 2015, 31(9): 143-148.

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参考文献 9

1	IEEE Std. P802.11-REVmc/D3.0. IEEE Draft Standard for Information Technology-Telecommunications and Information Exchange between Systems Local and Metropolitan Area Networks-Specific Requirements Part 11: Wireless LAN Medium Access Control（MAC）and Physical Layer（PHY）Specifications, Jun 2014
2	IEEE Std. 1609.4-2010. IEEE Standard for Wireless Access in VehicularEnvironments（WAVE）-Multi-ChannelOperation, Feb 2011
3	张恩展，邝育军．路口2-D VANET 中紧急信息单跳广播的可靠性分析．电信科学， 2014,30（3）:80～86 Zhang E Z , Kuang Y J . Reliability analysis of emergency message broadcast at an intersection in 2-D VANET. Telecommunications Science, 2014,30（3）:80～86
4	Korkmaz G , ?zgüner F , Ekici E , et al. Urban multi-hop broadcast protocol for inter-vehicle communication systems. Proceedings of the 1st ACM International Workshop on Vehicular Ad Hoc Networks （VANET'04）, Philadelphia, PA, USA, 2004:76～85
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7	Sahoo J , Wu E H K , Sahu P K , et al. Binary-partition-assisted MAC-layer broadcast for emergency message dissemination in VANETs. IEEE Transactions on Intelligent Transportation Systems, 2011（3）:757～770
8	Hafeez K A , Zhao L , Mark J W , et al. Distributed multichannel and mobility-aware cluster-based MAC protocol for vehicular Ad Hoc networks. IEEE Transactions on Vehicular Technology, 2013（8）:3886～3902
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参数	默认取值
标准	IEEE 802.11p/IEEE 1609.4
比特率	18 Mbit/s
最大传播范围	900 m
紧急消息分组大小	500 byte
RTB分组大小	20 byte
CTB分组大小	14 byte
时隙值	13 μs
DIFS	58 μs
SIFS	32 μs
最大信道传播时延	2 μs
T_switch	1 μs

车辆密度/（车辆数·单位区域^-1）	BPAB/ms	MBPAB/ms	时延差/ms
5	0.480 8	0.466 2	0.014 6
10	0.438 6	0.423 9	0.014 7
15	0.431 3	0.416 6	0.014 7
20	0.431 6	0.417	0.014 6
25	0.435 6	0.420 9	0.014 7
30	0.441 9	0.427 3	0.014 6
35	0.450 1	0.435 4	0.014 7
40	0.46	0.445 3	0.014 7

[1]	李扬,赵海涛,唐紫浩,张玉婷. 车辆自组织网络中基于信道传输环境的网络连通性能[J]. 电信科学, 2016, 32(12): 99-103.
[2]	张恩展,邝育军. 路口2-D VANET中紧急信息单跳广播的可靠性分析[J]. 电信科学, 2014, 30(3): 80-86.

用于VANET紧急消息传输的改进二元分割广播协议

Modified Binary Partition Assisted Broadcast Protocol for Emergency Message Dissemination in VANET

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