随着道路拥堵等交通问题的日益严峻,智能交通系统成为解决当前交通问题的有效途径。车载自组织网络及车辆作为智能交通的重要组成部分也成为了当前的研究热点。首先介绍了车联网在国内外的发展历史和现状,然后分别从端系统、管系统、云...随着道路拥堵等交通问题的日益严峻,智能交通系统成为解决当前交通问题的有效途径。车载自组织网络及车辆作为智能交通的重要组成部分也成为了当前的研究热点。首先介绍了车联网在国内外的发展历史和现状,然后分别从端系统、管系统、云系统3个方面对车联网进行了分析研究,着重介绍了管系统中的V2V(vehicle to vehicle)和V2R(vehicle to roadside)两种通信技术。此外,对于面向车联网的交通云和大数据技术进行了概括介绍。最后,探讨了车载自组织网络的应用场景和未来发展趋势。展开更多
智能交通系统和城市交通指挥中心联网技术可以应对由车辆数量激增带来的交通环境及安全方面的挑战。车载自组网(Vehicular Ad Hoc Network,VANET,是一种特殊的移动自组网(Mobile Ad Hoc Networks,MANET)在未来智能交通系统中将占有重要...智能交通系统和城市交通指挥中心联网技术可以应对由车辆数量激增带来的交通环境及安全方面的挑战。车载自组网(Vehicular Ad Hoc Network,VANET,是一种特殊的移动自组网(Mobile Ad Hoc Networks,MANET)在未来智能交通系统中将占有重要地位。主要针对VANET的无线通信相关技术进行了研究,介绍了其现状与体系结构,对其特点与挑战、标准协议、通信技术等进行了概述,探讨了VANET的未来发展前景。展开更多
We propose a new design of the high channel capacity in Mobile Ad Hoc Network that uses the dense wave-length division multiplexing wavelength enhancement, in which the increasing in channel capacity and sig-nal secur...We propose a new design of the high channel capacity in Mobile Ad Hoc Network that uses the dense wave-length division multiplexing wavelength enhancement, in which the increasing in channel capacity and sig-nal security can be provided. The increasing in number of channel can be obtained by the increasing in wavelength density, while the security is introduced by the specific wavelength filter, which is operated by the Ad Hoc node operator and link with other nodes in coverage by dedicated one-to-one in direct or relay node. The optical communication wavelength enhancement is reviewed. The advantage is that the proposed system can be implemented and used incorporating with the existed communication link in both infrastruc-ture-based and Ad Hoc networks wireless network, where the privacy can be provided, which is discussed in details.展开更多
文摘随着道路拥堵等交通问题的日益严峻,智能交通系统成为解决当前交通问题的有效途径。车载自组织网络及车辆作为智能交通的重要组成部分也成为了当前的研究热点。首先介绍了车联网在国内外的发展历史和现状,然后分别从端系统、管系统、云系统3个方面对车联网进行了分析研究,着重介绍了管系统中的V2V(vehicle to vehicle)和V2R(vehicle to roadside)两种通信技术。此外,对于面向车联网的交通云和大数据技术进行了概括介绍。最后,探讨了车载自组织网络的应用场景和未来发展趋势。
文摘智能交通系统和城市交通指挥中心联网技术可以应对由车辆数量激增带来的交通环境及安全方面的挑战。车载自组网(Vehicular Ad Hoc Network,VANET,是一种特殊的移动自组网(Mobile Ad Hoc Networks,MANET)在未来智能交通系统中将占有重要地位。主要针对VANET的无线通信相关技术进行了研究,介绍了其现状与体系结构,对其特点与挑战、标准协议、通信技术等进行了概述,探讨了VANET的未来发展前景。
文摘We propose a new design of the high channel capacity in Mobile Ad Hoc Network that uses the dense wave-length division multiplexing wavelength enhancement, in which the increasing in channel capacity and sig-nal security can be provided. The increasing in number of channel can be obtained by the increasing in wavelength density, while the security is introduced by the specific wavelength filter, which is operated by the Ad Hoc node operator and link with other nodes in coverage by dedicated one-to-one in direct or relay node. The optical communication wavelength enhancement is reviewed. The advantage is that the proposed system can be implemented and used incorporating with the existed communication link in both infrastruc-ture-based and Ad Hoc networks wireless network, where the privacy can be provided, which is discussed in details.
