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首页> 外文期刊>IEEE transactions on mobile computing >Mobile Autonomous Router System for Dynamic (Re)formation of Wireless Relay Networks
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Mobile Autonomous Router System for Dynamic (Re)formation of Wireless Relay Networks

机译：用于无线中继网络的动态（重组）移动自主路由器系统

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摘要

Multihop wireless relays can extend the area of network connectivity instantly and efficiently. However, due to the spatial dependence of wireless link-quality, the deployment of relay nodes requires extensive, expensive measurement, and management efforts. This paper presents a mobile autonomous router system, (MARS) through which a relay router autonomously seeks and adjusts the best "receptionâ position for itself and cooperatively forms a string-type relay network with other neighboring routers. Specifically, MARS 1) accurately characterizes spatial link-quality through a new measurement technique, 2) effectively probes/optimizes node positioning via a spatial probing algorithm, and 3) maintains error-tolerant position information via an inexpensive positioning algorithm. MARS has been prototyped with both a commodity mobile robot and a wireless router with IEEE 802.11 cards. Our experimental evaluation of both the MARS prototype and ns-2-based simulation show that MARS achieves an average of 95 percent accuracy in link-quality measurements, and reduces the measurement effort necessary for the optimization of a node's location by two-thirds, compared to exhaustive spatial probing.
机译：多跳无线中继可以立即有效地扩展网络连接范围。但是，由于无线链路质量的空间依赖性，中继节点的部署需要大量，昂贵的测量和管理工作。本文提出了一种移动自主路由器系统（MARS），中继路由器通过该系统自主地寻找并调整自身的最佳“接收”位置，并与其他相邻路由器协作形成字符串型中继网络。具体来说，MARS 1）可以准确地表征空间通过一种新的测量技术实现链路质量； 2）通过空间探测算法有效地探测/优化节点定位； 3）通过廉价的定位算法维护容错的位置信息； MARS已通过商用移动机器人和具有IEEE 802.11卡的无线路由器我们对MARS原型和基于ns-2的仿真的实验评估表明，MARS在链路质量测量中平均达到95％的准确度，并减少了优化节点网络所需的测量工作与详尽的空间探测相比，其位置减少了三分之二。

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