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On the Optimization of Wireless Multimedia Sensor Networks: A Goal Programming Approach

机译：无线多媒体传感器网络的优化：一种目标规划方法

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摘要

Network lifetime is a crucial concern for Wireless Multimedia Sensor Networks (WMSNs), particularly due to the energy constraints of their nodes and the significant bitrate required by multimedia applications. This paper deals with this issue, studying how to achieve the maximum network lifetime, and simultaneously satisfying the best aggregate throughput for the multimedia services offered. To this end, we propose a planning model that results in a more accurate solution for an arbitrary network deployment than using the current optimization techniques applied both to WMSNs and traditional Wireless Sensor Networks (WSNs). Our model is based on multi-objective formulation and goal programming, which, to the best of our knowledge, have never been employed in the WSN field. This paper also proposes a load balancing algorithm which ensures a fair traffic load distribution per link during the network operation and matches the values returned by the mathematical planning model for the set lifetime and throughput. Simulation results are presented and further discussed to show the effectiveness of the numerical solutions. Finally, a test-bed deployed in a trial environment validates the theoretical contributions of this work.
机译：对于无线多媒体传感器网络（WMSN）而言，网络寿命是至关重要的问题，特别是由于其节点的能量限制以及多媒体应用程序要求的高比特率。本文针对此问题进行了研究，研究了如何实现最大的网络寿命，同时满足所提供的多媒体服务的最佳总吞吐量。为此，我们提出一种计划模型，该模型比使用应用于WMSN和传统无线传感器网络（WSN）的当前优化技术能够为任意网络部署提供更准确的解决方案。我们的模型基于多目标制定和目标编程，据我们所知，WSN领域从未采用过该模型。本文还提出了一种负载平衡算法，该算法可确保网络操作期间每个链路的流量负载分布合理，并针对设置的寿命和吞吐量匹配数学规划模型返回的值。给出并进一步讨论了仿真结果，以证明数值解的有效性。最后，在试验环境中部署的测试平台验证了这项工作的理论贡献。

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