Dynamic retransmission limit scheme in MAC layer for routing in multihop ad hoc networks

IF 2 Q3 TELECOMMUNICATIONS

Journal of Computer Networks and Communications Pub Date : 2008-01-01 DOI:10.1155/2008/414073

Ralph El-Khoury, R. El-Azouzi

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引用次数: 0

Abstract

We consider a wireless ad hoc network with random access channel. We present a model that takes into account topology, routing, random access in MAC layer, and forwarding probability. In this paper, we focus on drawing benefit from the interaction of the MAC (governed by IEEE 802.11 or slotted Aloha) and routing by defining a new cross-layer scheme for routing based on the limit number of retransmission. By adjusting dynamically and judiciously this parameter in a saturated network, we have realized that both stability of forwarding queues and average throughput are significantly improved in linear networks with symmetric traffic: a gain of 100% can be reached. While in asymmetric topology network with asymmetric traffic, we achieve a better average delay (resp., throughput) for each connection without changing the average throughput (resp., delay). In addition, we show the efficiency of our new scheme in case of multimedia applications with delay constraint. A detailed performance study is presented using analytical and simulation evaluation.

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多跳自组织网络中路由的MAC层动态重传限制方案

我们考虑了一个具有随机接入信道的无线自组织网络。我们提出了一个考虑拓扑、路由、MAC层随机访问和转发概率的模型。在本文中，我们重点从MAC(由IEEE 802.11或槽Aloha管理)和路由的交互中获益，通过定义一个新的基于重传数量限制的路由跨层方案。通过在饱和网络中动态且明智地调整该参数，我们已经意识到在具有对称流量的线性网络中，转发队列的稳定性和平均吞吐量都得到了显著提高:增益可以达到100%。在具有非对称流量的非对称拓扑网络中，我们获得了更好的平均时延(resp)。在不改变平均吞吐量的情况下，为每个连接设置一个(例如，吞吐量)。延迟)。此外，我们还在具有延迟约束的多媒体应用中证明了新方案的有效性。通过分析和仿真评估，给出了详细的性能研究。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Computer Networks and Communications TELECOMMUNICATIONS-

CiteScore

5.30

自引率

5.00%

发文量

审稿时长

15 weeks

期刊介绍： The Journal of Computer Networks and Communications publishes articles, both theoretical and practical, investigating computer networks and communications. Articles explore the architectures, protocols, and applications for networks across the full spectrum of sizes (LAN, PAN, MAN, WAN…) and uses (SAN, EPN, VPN…). Investigations related to topical areas of research are especially encouraged, including mobile and wireless networks, cloud and fog computing, the Internet of Things, and next generation technologies. Submission of original research, and focused review articles, is welcomed from both academic and commercial communities.