A fast, adaptive, and energy-efficient multi-path-multi-channel data collection protocol for wireless sensor networks
A fast, adaptive, and energy-efficient multi-path-multi-channel data collection protocol for wireless sensor networks
复制标题
DOI：
10.1109/sigtelcom.2017.7849791
复制
发表时间：
2017-02
期刊：
影响因子：
--
通讯作者：
C. Tan;S. Liew;H. Goh;Ivan Andonovic
中科院分区：
文献类型：
--
作者：
C. Tan;S. Liew;H. Goh;Ivan Andonovic
能量消耗、流量适应性、快速数据采集等是无线传感器网络的主要问题。大多数现有的WSN协议都能够处理上述一个或两个问题，而其他问题则受到损害。为了降低无线传感器节点的能量消耗，同时在不同流量产生速率下实现快速数据采集，本文提出了一种快速、自适应、节能的多路径多通道（FAEM）数据采集协议。FAEM利用了文献中提出的篮球网拓扑，在每个节点上预先建立了一个多父多子连接表；每个节点还预先分配一个不同于相邻节点的接收信道，以消除传输干扰。在数据传输过程中，时间被划分为若干个占空比，每个占空比由两个阶段组成，即分布式迭代调度阶段和基于槽位的数据包转发阶段。前者是以分布式的方式匹配整个WSN的父节点和子节点，以确定节点是否应该在特定的插槽中处于上传（向哪个父节点）、下载（从哪个子节点）或休眠模式；而后者是让节点根据调度采取行动。仿真结果表明，即使在高流量负载下，该协议也能实现较低的能耗、数据可靠性和低延迟。
Energy consumption, traffic adaptability, fast data collection, etc are the major issues in wireless sensor networks (WSNs). Most existing WSN protocols are able to handle one or two of the above issues with the other(s) being compromised. In order to reduce the energy consumption of wireless sensor nodes while having fast data collection under different traffic generating rates, this paper proposes a fast, adaptive, and energy-efficient multi-path-multi-channel (FAEM) data collection protocol. FAEM makes use of the Basketball Net Topology proposed in the literature, in which a multi-parent-multi-child connection table is pre-established at each node; each node is also pre-assigned a receiving channel which is different from those of the neighboring nodes so as to eliminate the transmission interference. During data transmission, time is divided into duty cycles, and each consists of two phases, namely distributed iterative scheduling phase and slot-based packet forwarding phase. The former is to match parents and children of the entire WSN in a distributed manner in order to determine whether a node should be in upload (to which parent), download (from which child), or sleep mode in a particular slot; while the latter is for nodes to take action according to the schedule. Simulation shows that our protocol is able to achieve lower energy consumption, data reliability and low latency even during a high traffic load.