A multihop peer-communication protocol with fairness guarantee for IEEE 802.16-based vehicular networks
A multihop peer-communication protocol with fairness guarantee for IEEE 802.16-based vehicular networks
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DOI：
10.1109/tvt.2007.906875
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发表时间：
2007-11-01
影响因子：
6.8
通讯作者：
He, Jianghua
中科院分区：
文献类型：
--
作者：
Yang, Kun;Ou, Shumao;He, Jianghua
无线通信技术可用于改善道路安全和提供车内互联网接入。本文提出了一种跨层协议称为协调外部对等通信（CEPEC）的互联网接入服务和对等通信的车辆网络。我们假设IEEE 802.16基站（BS）沿沿着公路安装，并且相同的空中接口装备在车辆中。位于其最近BS的有限覆盖范围之外的某些车辆仍然可以经由到其BS的多跳路由来访问互联网。对于互联网接入服务，CEPEC的目标是增加端到端的吞吐量，同时提供路段之间的带宽使用的公平性保证。为了实现这一目标，道路在逻辑上被划分为等长的路段。在每个段中选择中继头，其执行本地分组收集和聚合分组中继。仿真结果表明，建议的CEPEC协议提供了更高的吞吐量与保证公平性的多跳数据传输在车辆网络中相比，纯粹的IEEE 802.16为基础的协议。
Wireless-communication technology can be used to improve road safety and to provide Internet access inside vehicles. This paper proposes a cross-layer protocol called coordinated external peer communication (CEPEC) for Internet-access services and peer communications for vehicular networks. We assume that IEEE 802.16 base stations (BS) are installed along highways and that the same air interface is equipped in vehicles. Certain vehicles locating outside of the limited coverage of their nearest BSs can still get access to the Internet via a multihop route to their BSs. For Internet-access services, the objective of CEPEC is to increase the end-to-end throughput while providing a fairness guarantee in bandwidth usage among road segments. To achieve this goal, the road is logically partitioned into segments of equal length. A relaying head is selected in each segment that performs both local-packet collecting and aggregated packets relaying. The simulation results have shown that the proposed CEPEC protocol provides higher throughput with guaranteed fairness in multihop data delivery in vehicular networks when compared with the purely IEEE 802.16-based protocol.