车联网体系结构及感知层关键技术研究

doi:10.3969/j.issn.1000-0801.2012.12.001

Abstract

Abstract:

Internet of vehicles（IoV）is considered to be an important branch of Internet of things（IoT）,is the first application breakthrough in the IoT's area,is also a hot research topic for many years.Based on the research production of IoT,intelligent transportation systems（ITS）and Information network,the basic concept and architecture of IoV are described.At the same time,the research status of IoV is introduced.On this basis,the vehicular network architecture,communication mode,main function,application area and the technical difficulties are analyzed.Finally,consulted the IEEE 802.11p standard and the IEEE 1609 protocol stacks,the key technologies,protocols and communication standards of IoV's physical layer,MAC layer and the network layer are discussed.

Key words: Internet of vehicles, network architecture, vehicular ad hoc network, IEEE 802.11p standard, IEEE 1609 protocol stack

Qun Wang,Huanyan Qian. Architecture and Key Technologies for Internet of Vehicles[J]. Telecommunications Science, 2012, 28(12): 1-9.

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References 24

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标准名称	功能定位	功能描述
IEEE 1609.1	资源管理	规定了多个远程应用和资源管理间的控制互换流程，使具有控制能力的节点能够对一个区域内的所有节点进行远程控制。为DSRC设备提供了可扩展性和管理机制
IEEE 1609.2	安全服务	为车联网应用和管理信息提供所需要的安全机制，主要包括抵抗信道窃听、电子欺诈和其他的人侵攻击等
IEEE 1609.3	网络层协议及管理机制	制定WAVE系统中网络层的通信协议及管理机制，缩小信息在WAVE设备间的传输延时
IEEE 1609.4	多信道协调应用	在WAVE 的7个10 MHz 带宽无线信道中有1个是控制信道。使用其他6个信道的WAVE设备之间必须定期或不定期的通过控制信道交换信息，以协调通信过程

参数名称	IEEE 802.11a	IEEE 802.11p
频段（GHz）	5.15～5.35、5.725～5.825	5.850～5.925
带宽（MHz）	20	10
信道数（个）	12	7
子载波个数（个）	52	52
子载波间隔（kHz）	312.5	156.25
数据速率（Mbit/s）	6、9、12、18、24、36、48、54	3、4.5、6、9、12、18、24、27
调制方式	BPSK、QPSK、16QAM、64QAM	BPSK、QPSK、16QAM、64QAM
纠错编码	K=7的循环卷积编码	K=7的循环卷积编码

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Architecture and Key Technologies for Internet of Vehicles

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