摘要
Wireless Sensor Networks (WSNs) have been applied in many different areas. Energy efficient algorithms and protocols have become one of the most challenging issues for WSN. Many researchers focused on developing energy efficient clustering algorithms for WSN, but less research has been concerned in the mobile User Equipment (UE) acting as a Cluster Head (CH) for data transmission between cellular networks and WSNs. In this paper, we propose a cellular-assisted UE CH selection algorithm for the WSN, which considers several parameters to choose the optimal UE gateway CH. We analyze the energy cost of data transmission from a sensor node to the next node or gateway and calculate the whole system energy cost for a WSN. Simulation results show that better system performance, in terms of system energy cost and WSNs life time, can be achieved by using interactive optimization with cellular networks.
Wireless Sensor Networks （WSNs） have been applied in many different areas. Energy ef- ficient algorithms and protocols have become one of the most challenging issues for WSN. Many re- searchers focused on developing energy efficient clustering algorithms for WSN, but less research has been concerned in the mobile User Equipment （UE） acting as a Cluster Head （CH） for data trans- mission between cellular networks and WSNs. In this paper, we propose a cellular-assisted UE CH selection algorithm for the WSN, which considers several parameters to choose the optimal UE gateway CH. We analyze the energy cost of data transmission from a sensor node to the next node or gateway and calculate the whole system energy cost for a WSN. Simulation results show that better system performance, in terms of system energy cost and WSNs life time, can be achieved by using interactive optimization with cellular networks.
基金
Supported by the National Science and Technology Major Projects of China (No.2011ZX03005-003-02)
Shanghai Natural Science Foundation (No.11ZR-1435100)
Shanghai Science and Technology Innovation Program(No.11DZ0512500, 12511503300, 12DZ2250200)
