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首页> 外文会议>2012 International Conference on Wireless Communications amp; Signal Processing >Relay vehicle based access network selection scheme for Vehicular Ad Hoc Network
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Relay vehicle based access network selection scheme for Vehicular Ad Hoc Network

机译：基于中继车辆的车载自组织网络接入网选择方案

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摘要

In recent years, Vehicular Ad Hoc Network (VANET) has attracted considerable attention both from academia and industry. In VANET, multiple access technologies such as cellular system, Wireless Local Area Network (WLAN) are integrated to support the service requirements of vehicular users. In the case that a vehicle is in the overlapped coverage area of multiple access technologies, it may select one suitable technology for accessing. Furthermore, a relay vehicle (RV) based communication mode can be applied so that the communication area of a particular access network can be extended and the system throughput can be increased. The selection for specific access technology is of particular importance in VANET for it may affect both system performance and user Quality of Service (QoS) significantly. In this paper, we propose an accessing selection scheme for VANET application scenario with RV-based communication be accessible. A three-dimensional Markov chain is modeled to characterize the proposed network access scheme. Detail performance analysis for the network selection scheme is conducted and the numerical results shows that the proposed scheme offers better blocking probability and dropping rate of vertical handoff calls comparing to the traditional access method.
机译：近年来，车载自组织网络（VANET）引起了学术界和工业界的极大关注。在VANET中，集成了多种接入技术，例如蜂窝系统，无线局域网（WLAN），以支持车辆用户的服务需求。在车辆处于多种接入技术的覆盖范围内的情况下，它可以选择一种合适的技术进行接入。此外，可以应用基于中继车辆（RV）的通信模式，以便可以扩展特定访问网络的通信区域，并可以增加系统吞吐量。在VANET中，特定接入技术的选择尤为重要，因为它可能同时影响系统性能和用户服务质量（QoS）。在本文中，我们提出了一种基于RV通讯的VANET应用场景的访问选择方案。对三维马尔可夫链进行建模，以表征建议的网络访问方案。对网络选择方案进行了详细的性能分析，数值结果表明，与传统的接入方法相比，该方案具有更好的阻塞概率和垂直切换呼叫的掉线率。

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