On Coverage Problems of Directional Sensor Networks
On Coverage Problems of Directional Sensor Networks
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DOI：
10.1007/11599463_70
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发表时间：
2005-12
期刊：
影响因子：
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通讯作者：
Huadong Ma;Yonghe Liu
中科院分区：
文献类型：
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作者：
Huadong Ma;Yonghe Liu
在传统的传感器网络中，传感器往往是基于全方位感知模型。然而，方向感测范围和传感器是很大的应用机会，通常在视频传感器网络中。因此，定向传感器网络也需要新的解决方案，特别是部署策略和传感器的调度。为此，本文评估了部署定向传感器的覆盖概率给定的要求。此外，本文提出了如何解决的连通性问题，随机部署的传感器在定向通信模型。针对两种典型情况，提出了一种有向传感器网络连通性的检测与修复方法。我们设计有效的协议来实现我们的想法。最后通过一系列实验验证了该方法的有效性。作为一种特殊情况，本文的研究结果也可用于解决传统传感器网络的覆盖问题。
In conventional sensor networks, the sensors often are based on omni-sensing model. However, directional sensing range and sensors are great application chances, typically in video sensor networks. Thus, the directional sensor network also demands novel solutions, especially for deployment policy and sensor’s scheduling. Toward this end, this paper evaluates the requirements of deploying directional sensors for a given coverage probability. Moreover, the paper proposes how to solve the connectivity problem for randomly deployed sensors under the directional communication model. The paper proposes a method for checking and repairing the connectivity of directional sensor networks for two typical cases. We design efficient protocols to implement our idea. A set of experiments are also performed to prove the effectivity of our solution. The results of this paper can be also used to solve the coverage problem of traditional sensor networks as a special case.