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Data Gathering With Minimum Number of Relay Packets in Wireless Sensor Networks

机译:无线传感器网络中具有最小中继数据包数量的数据收集

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摘要

The data gathering problem is an important issue in wireless sensor networks (WSNs). In general, mobile elements are used to collect the sensed data of sensors to reduce the problem of unbalanced energy consumption caused by multi-hop transmission. However, in time-sensitive applications of WSNs where mobile elements are used to collect time-sensitive data, we must pay particular attention to the length of the traveling path to ensure that data are still useful after delivered to the sink. In this paper, we focus on how to plan a traveling path that meets the delay requirement of time-sensitive applications for data collection and reduces the amount of relay packets in the WSNs. The proposed algorithm is called Timeliness Traveling Path Planning (TTPP) algorithm. Based on the least squares curve approach, the proposed TTPP algorithm can find the best-fitting curve for any given set of sensors by reducing the amount of relay packets in the WSNs. The effectiveness of the proposed TTPP algorithm is confirmed through extensive simulations.
机译:数据收集问题是无线传感器网络(WSN)中的重要问题。通常,移动元件用于收集传感器的感测数据,以减少由多跳传输引起的能量消耗不平衡的问题。但是,在WSN的时间敏感型应用程序中,移动元素用于收集时间敏感型数据,我们必须特别注意行进路径的长度,以确保将数据传递到接收器后仍然有用。在本文中,我们专注于如何规划一条满足时间敏感应用程序对数据收集的延迟要求并减少WSN中中继包数量的行进路径。所提出的算法称为及时性行进路径规划(TTPP)算法。基于最小二乘曲线方法,所提出的TTPP算法可以通过减少WSN中的中继数据包数量来找到任何给定传感器集合的最佳拟合曲线。通过大量的仿真证实了所提出的TTPP算法的有效性。

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