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Performance Enriching Channel Allocation Algorithm for Vehicle-to-Vehicle City Highway and Rural Network

机译:车辆到城市公路和农村网络的性能丰富的信道分配算法

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摘要

Future safety applications require the timely delivery of messages between vehicles. The 802.11p has been standardized as the standard Medium Access Control (MAC) protocol for vehicular communication. The 802.11p uses Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) as MAC. CSMA/CA induces unbounded channel access delay. As a result, it induces high collision. To reduce collision, distributed MAC is required for channel allocation. Many existing approaches have adopted Time Division Multiple Access (TDMA) based MAC design for channel allocation. However, these models are not efficient at utilizing bandwidth. Cognitive radio technique is been adopted by various existing approach for channel allocation in shared channel network to maximize system throughput. However, it induces MAC overhead, and channel allocation on a shared channel network is considered to be an NP-hard problem. This work addresses the above issues. Here we present distributed MAC design PECA (Performance Enriching Channel Allocation) for channel allocation in a shared channel network. The PECA model maximizes the system throughput and reduces the collision, which is experimentally proven. Experiments are conducted to evaluate the performance in terms of throughput, collision and successful packet transmission considering a highly congested vehicular ad-hoc network. Experiments are carried out to show the adaptiveness of proposed MAC design considering different environments such City, Highway and Rural (CHR).
机译:未来的安全应用需要在车辆之间及时传递消息。 802.11p已被标准化为用于车辆通信的标准媒体访问控制(MAC)协议。 802.11p使用具有冲突避免功能的载波侦听多路访问(CSMA / CA)作为MAC。 CSMA / CA会导致无限制的信道访问延迟。结果,它引起高碰撞。为了减少冲突,信道分配需要分布式MAC。许多现有方法已采用基于时分多址(TDMA)的MAC设计进行信道分配。但是,这些模型在利用带宽方面效率不高。现有的各种方法已采用认知无线电技术在共享信道网络中进行信道分配,以最大化系统吞吐量。但是,这会引起MAC开销,并且共享信道网络上的信道分配被认为是NP难题。这项工作解决了上述问题。在这里,我们介绍了用于共享信道网络中的信道分配的分布式MAC设计PECA(性能增强信道分配)。 PECA模型可以最大程度地提高系统吞吐量,并减少碰撞,这已通过实验证明。考虑到高度拥挤的车辆自组织网络,进行了实验以评估吞吐量,冲突和成功的数据包传输方面的性能。实验表明,考虑到不同的城市,公路和农村(CHR)环境,建议的MAC设计具有适应性。

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