文摘
A mobile sink has been exploited for data gathering in Wireless Sensor Networks (WSN), which can reduce and balance energy consumption among sensor nodes. A mobile sink assisted transmission algorithm has become one of the research hotspots for WSN. How to energy-efficiently collect and transmit data by using multiple mobile sinks is one of the hot research topics. In this paper, we propose a mobile smart UE-gateway assisted transmission algorithm for WSN, which considers several parameters to choose an optimized mobile smart UE-gateway as an access point. Then we analyze the WSN system energy cost and transmission delay. The performance evaluation results show that system energy costs, WSNs lifetime and transmission delay can be improved largely by using the optimization of a mobile smart UE-gateway.