School of Computing and Mathematics, Charles Sturt University, New South Wales 2678, Australia.
Sensors (Basel). 2012 Nov 5;12(11):14887-913. doi: 10.3390/s121114887.
Wireless Sensor Networks (WSNs) are formed by a large collection of power-conscious wireless-capable sensors without the support of pre-existing infrastructure, possibly by unplanned deployment. With a sheer number of sensor nodes, their unattended deployment and hostile environment very often preclude reliance on physical configuration or physical topology. It is, therefore, often necessary to depend on the logical topology. Logical topologies govern how a sensor node communicates with other nodes in the network. In this way, logical topologies play a vital role for resource-constraint sensor networks. It is thus more intuitive to approach the constraint minimizing problems from (logical) topological point of view. Hence, this paper aims to study the logical topologies of WSNs. In doing so, a set of performance metrics is identified first. We identify various logical topologies from different application protocols of WSNs, and then compare the topologies using the set of performance metrics.
无线传感器网络（WSN）由大量无需预先存在的基础设施支持、可能通过非计划部署的节能型无线传感器组成。由于传感器节点数量众多，它们的无人值守部署和恶劣环境通常排除了对物理配置或物理拓扑的依赖。因此，通常需要依赖逻辑拓扑。逻辑拓扑决定了传感器节点如何与网络中的其他节点进行通信。这样，逻辑拓扑对于资源受限的传感器网络起着至关重要的作用。因此，从（逻辑）拓扑的角度来研究约束最小化问题更加直观。因此，本文旨在研究 WSN 的逻辑拓扑。为此，首先确定了一组性能指标。我们从 WSN 的不同应用协议中识别出各种逻辑拓扑，然后使用该性能指标集对这些拓扑进行比较。
