基于WSN与WLAN室内应急通信的自适应垂直切换

his paper presents a adaptive vertical handoff algorithm in case of emergency communication which is based on wireless sensor networks (WSN) and wireless local area network (WLAN) in large-scale buildings. The algorithm proposes the vision of network priority, and develops a suitable WSN-WLAN handoff decision strategy according to the characteristics of wireless sensor networks and the specificity of interior communications. Simulation results show that the algorithm can direct communications network to adapt to the change conditions, which is effective to meet the needs of interior emergency communication.