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

機(jī)譯：車輛到城市公路和農(nóng)村網(wǎng)絡(luò)的性能豐富的信道分配算法

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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).
機(jī)譯：未來的安全應(yīng)用需要在車輛之間及時傳遞消息。 802.11p已被標(biāo)準(zhǔn)化為用于車輛通信的標(biāo)準(zhǔn)媒體訪問控制（MAC）協(xié)議。 802.11p使用具有沖突避免功能的載波偵聽多路訪問（CSMA / CA）作為MAC。 CSMA / CA會導(dǎo)致無限制的信道訪問延遲。結(jié)果，它引起高碰撞。為了減少沖突，信道分配需要分布式MAC。許多現(xiàn)有方法已采用基于時分多址（TDMA）的MAC設(shè)計進(jìn)行信道分配。但是，這些模型在利用帶寬方面效率不高?，F(xiàn)有的各種方法已采用認(rèn)知無線電技術(shù)在共享信道網(wǎng)絡(luò)中進(jìn)行信道分配，以最大化系統(tǒng)吞吐量。但是，這會引起MAC開銷，并且共享信道網(wǎng)絡(luò)上的信道分配被認(rèn)為是NP難題。這項工作解決了上述問題。在這里，我們介紹了用于共享信道網(wǎng)絡(luò)中的信道分配的分布式MAC設(shè)計PECA（性能增強(qiáng)信道分配）。 PECA模型可以最大程度地提高系統(tǒng)吞吐量，并減少碰撞，這已通過實驗證明?？紤]到高度擁擠的車輛自組織網(wǎng)絡(luò)，進(jìn)行了實驗以評估吞吐量，沖突和成功的數(shù)據(jù)包傳輸方面的性能。實驗表明，考慮到不同的城市，公路和農(nóng)村（CHR）環(huán)境，建議的MAC設(shè)計具有適應(yīng)性。

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