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首页> 外文会议>9th ACM/IEEE international conference on information processing in sensor networks 2010 >Addressing Burstiness for Reliable Communication and Latency Bound Generation in Wireless Sensor Networks
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Addressing Burstiness for Reliable Communication and Latency Bound Generation in Wireless Sensor Networks

机译：解决无线传感器网络中可靠通信的突发性和延迟绑定生成

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摘要

As wireless sensor networks mature, they are increasingly being used in real-time applications. Many of these applications require reliable transmission within latency bounds. Achieving this goal is very difficult because of link burstiness and interference. Based on significant empirical evidence of 21 days and over 3,600,000 packets transmission per link, we propose a scheduling algorithm that produces latency bounds of the real-time periodic streams and accounts for both link bursts and interference. The solution is achieved through the definition of a new metric Bmax that characterizes links by their maximum burst length, and by choosing a novel least-burst-route that minimizes the sum of worst case burst lengths over all links in the route. A testbed evaluation consisting of 48 nodes spread across a floor of a building shows that we obtain 100% reliable packet delivery within derived latency bounds. We also demonstrate how performance deteriorates and discuss its implications for wireless networks with insufficient high quality links.
机译：随着无线传感器网络的成熟，它们正越来越多地用于实时应用中。这些应用程序中的许多都需要在延迟范围内进行可靠的传输。由于链路突发性和干扰，实现此目标非常困难。基于21天的重要经验证据和每条链路超过360万个数据包传输，我们提出了一种调度算法，该算法可生成实时周期性流的延迟范围，并考虑链路突发和干扰。通过定义新的度量Bmax来实现该解决方案，该度量以链路的最大突发长度为特征，并选择一种新颖的最小突发路由，该最小突发路由将路由中所有链路的最坏情况突发长度的总和最小化。由分布在建筑物楼层中的48个节点组成的测试平台评估表明，我们在派生的延迟范围内获得了100％可靠的数据包传递。我们还将演示性能如何下降，并讨论其对没有足够高质量链接的无线网络的影响。

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