A general model of wireless interference
A general model of wireless interference
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DOI：
10.1145/1287853.1287874
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发表时间：
2007-09
期刊：
影响因子：
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通讯作者：
L. Qiu;Yin Zhang;Feng Wang;M. Han;Ratul Mahajan
中科院分区：
文献类型：
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作者：
L. Qiu;Yin Zhang;Feng Wang;M. Han;Ratul Mahajan
我们开发了一个通用的模型来估计任意对节点之间的吞吐量和有效吞吐量在无线网络中的其他节点的干扰的存在。我们的模型基于底层网络本身的测量，因此比基于距离的RF传播抽象模型更准确。种子测量很容易收集，在N节点网络中只需要O（N）个测量。与现有的基于测量的模型相比，我们的模型在三个重要方面提高了最先进的水平。首先，它超越了成对干扰，并对任意数量的干扰进行建模。其次，它超越了广播传输，并对更常见的单播传输情况进行了建模。第三，它超越了同构节点，并对具有不同流量需求和不同无线电特性的异构节点的一般情况进行建模。使用模拟和测量从两个不同的无线测试平台，我们表明，我们的模型的预测是准确的，在广泛的情况下。
We develop a general model to estimate the throughput and goodput between arbitrary pairs of nodes in the presence of interference from other nodes in a wireless network. Our model is based on measurements from the underlying network itself and is thus more accurate than abstract models of RF propagation such as those based on distance. The seed measurements are easy to gather, requiring only O(N) measurements in an N-node networks. Compared to existing measurement-based models, our model advances the state of the art in three important ways. First, it goes beyond pairwise interference and models interference among an arbitrary number of senders. Second, it goes beyond broadcast transmissions and models the more common case of unicast transmissions. Third, it goes beyond homogeneous nodes and models the general case of heterogeneous nodes with different traffic demands and different radio characteristics. Using simulations and measurements from two different wireless testbeds, we show that the predictions of our model are accurate in a wide range of scenarios.