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Sensor network node scheduling for preserving coverage of wireless multimedia networks

机译：用于保存无线多媒体网络覆盖的传感器网络节点调度

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摘要

Wireless multimedia sensor networks (WMSNs) are receiving increasing consideration in the deployment of unmanned surveillance systems for applications such as monitoring battle field and security surveillance. However, ensuring high levels of coverage of the monitored area and concurrently maximising the WMSN lifetime remains a challenging issue. The authors introduce a novel distributed algorithm in this study, for scheduling multimedia sensor nodes (MSNs) activity that maximises coverage and minimises energy consumption. The proposed activity scheduling algorithm incorporates an approach that enables each MSN in WMSN to efficiently extract its cover sets to ensure that the critical points are monitored, and thereby minimise and effectively balance the network energy utilisation. They introduce a new way to select the most suitable cover set of an MSN by assigning priority for each cover set based on the correlation of visual information from the camera observations. The efficacy of the proposed approach is studied through rigorous simulations. Their simulation work and results comparison with existing approaches demonstrate that their proposed scheme exceeds current results in terms of network lifetime, capture rate and percentages of dead and active nodes.
机译：无线多媒体传感器网络（WMSNS）正在接受越来越多的考虑，即监测战区和安全监测等应用的无人监控系统。然而，确保监控区域的高度覆盖并同时最大化WMSN寿命仍然是一个具有挑战性的问题。作者在本研究中介绍了一种新的分布式算法，用于调度多媒体传感器节点（MSN）活动，最大化覆盖率并最大限度地减少能量消耗。所提出的活动调度算法包括一种方法，该方法使得WMSN中的每个MSN能够有效地提取其封面集，以确保监测临界点，从而最小化和有效地平衡网络能量利用率。它们引入了一种新的方式来通过基于视觉信息从摄像机观察的相关性分配每个封面集来选择最合适的封面集。通过严格的模拟研究了所提出的方法的功效。与现有方法的仿真工作和结果比较表明，其提出的方案在网络寿命，捕获率和死亡和活动节点的百分比方面超过了当前结果。

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