应急通信中WSN系统模型及性能评价指标体系研究

应急通信环境复杂多变,对无线传感网（WSN）的服务能力提出了更高的要求。为了更好地在应急通信环境中部署和应用WSN,给出了一种适用于应急通信的WSN系统模型,并就网络拓扑、部署方式、感知模型、能耗模型以及覆盖和连通性等进行了说明。在常规网络服务评价指标的基础上,制定了WSN的性能评价指标体系,提出的WSN系统模型和评价指标体系能够较好地反映无线传感网络的特点和应用需求,对实际网络的设计和评价具有一定的指导意义。

Investigation of System Model and Performance Evaluation Index System of Wireless Sensor Network in Emergency Communication

Complicated and volatile emergency communication environments impose higher requirements for service capability of wireless sensor network （WSN）. In order to better deploy and apply WSN efficiently in emergency communication environments, this paper proposes a kind of WSN system model suitable for emergency communications and describes its network topology, deployment mode, perceptual model, energy consumption model, coverage and connectivity respectively. Then, on the basis of introducing QoS evaluation indexes of common network services, a performance evaluation index system of WSN is built. The proposed system model and evaluation index system can preferably reflect the network characteristics and meet application needs of WSN effectively, which has a certain guiding significance for real world network design and assessment.