MSDG: A novel green data gathering scheme for wireless sensor networks
MSDG: A novel green data gathering scheme for wireless sensor networks
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MSDG：一种新颖的无线传感器网络绿色数据收集方案
DOI：
10.1016/j.comnet.2018.06.012
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发表时间：
2018-09-04
影响因子：
5.6
通讯作者：
Luo, Gungming
中科院分区：
文献类型：
--
作者：
Li, Zhetao;Liu, YuXin;Luo, Gungming
迫切需要绿色数据采集来解决应用所需的各种功能与传感器节点有限的能源供应之间的冲突。本文提出了一种多带数据收集（MSDG）方案，可以有效减少传输的数据量。 MSDG方案将网络划分为多个条带，条带周围的各个节点通过数据融合的方法向中心传输数据。数据到达条带中心时，数据融合包的数量为m。条带中心的节点采用压缩感知（CS）方法收集数据，沿一圈路由后条带内的所有数据都收集在一个称为起始节点的节点上，该节点保持数据包长度为m。最后利用CS方法对条带各起始节点上的数据进行融合，从最外层的起始节点开始到达sink，实现整个网络的数据采集。仿真和理论分析表明，MSDG策略与现有的混合CS方案相比，可以使网络寿命提高近5倍。此外，能源利用率从21%提高到61%，显着提高了无线传感器网络数据收集的性能。 (C) 2018 Elsevier B.V. 保留所有权利。
Green data gathering is urgently required for solving the conflict between various functionalities demanded by applications and the limited energy supply for sensor nodes. This paper proposes a MultiStrip Data Gathering (MSDG) scheme that can effectively reduce the amount of data transmitted. In the MSDG scheme, the network is divided into multiple strips, in which each of the nodes around the strip transmit data to the center with the data fusion method. The number of data fusion packets is m when data arrives at the strip center. The nodes at the strip center collect data using the compressed sensing (CS) method, and all the data in the strip after routing along a circle are collected on a node called the start node, which maintains a packet length of m. Finally, the data on each start node of the strip are fused using the CS method, starting from the outermost start nodes to reach the sink, to achieve data collection for the entire network. Simulation and theoretical analyses demonstrate that the MSDG strategy, compared with the existing hybrid-CS scheme, can enable the network lifetime to increase by nearly 5 times. Additionally, the energy utilization is increased from 21% to 61%, which significantly enhances the performance of data collection in the wireless sensor networks. (C) 2018 Elsevier B.V. All rights reserved.