Improve Efficiency and Reliability in Single-Hop WSNs with Transmit-Only Nodes
Improve Efficiency and Reliability in Single-Hop WSNs with Transmit-Only Nodes
复制标题
DOI：
10.1109/tpds.2012.148
复制
发表时间：
2013-03-01
影响因子：
5.3
通讯作者：
Yoon, Seokhoon
中科院分区：
文献类型：
--
作者：
Zhao, Jia;Qiao, Chunming;Yoon, Seokhoon
无线传感器网络(WSNs)将在未来“物联网”的“边缘”发挥重要作用。特别是，具有仅发送节点的无线传感器网络由于其在支持需要以非常低的成本和能量消耗来支持密集和持久部署的应用方面的优势而吸引了更多的关注。然而，在仅发送节点中缺乏接收器使得大多数现有的MAC协议无效。基于我们之前对纯只发送节点的无线传感器网络的研究，本文提出了一种简单、经济有效且功能强大的单跳混合型无线传感器网络集群体系结构，该结构不仅包括只发送节点，而且还包括标准节点(带有收发机)。在混合体系结构的基础上，本文还提出了一种新的MAC层协议框架，称为稳健的异步资源估计(RARE)，该框架能够高效可靠地自组织地管理密集部署的单跳混合簇。通过分析和大量的仿真表明，该框架在数据传递率、服务质量区分、系统容量、能量消耗和可靠性等方面满足或超过了大多数应用的需求。据我们所知，这是第一个为同时包含非同步只发送节点和标准节点的无线传感器网络带来可靠调度的工作。
Wireless Sensor Networks (WSNs) will play a significant role at the "edge" of the future "Internet of Things." In particular, WSNs with transmit-only nodes are attracting more attention due to their advantages in supporting applications requiring dense and long-lasting deployment at a very low cost and energy consumption. However, the lack of receivers in transmit-only nodes renders most existing MAC protocols invalid. Based on our previous study on WSNs with pure transmit-only nodes, this work proposes a simple, yet cost effective and powerful single-hop hybrid WSN cluster architecture that contains not only transmit-only nodes but also standard nodes (with transceivers). Along with the hybrid architecture, this work also proposes a new MAC layer protocol framework called Robust Asynchronous Resource Estimation (RARE) that efficiently and reliably manages the densely deployed single-hop hybrid cluster in a self-organized fashion. Through analysis and extensive simulations, the proposed framework is shown to meet or exceed the needs of most applications in terms of the data delivery probability, QoS differentiation, system capacity, energy consumption, and reliability. To the best of our knowledge, this work is the first that brings reliable scheduling to WSNs containing both nonsynchronized transmit-only nodes and standard nodes.