带速度控制的能量高效的数据收集算法

无线传感网络中, 在保证节点能耗较低, 从而延长网络寿命的基础上, 减小数据收集时延是数据收集的核心问题。为此, 提出了一种带速度控制的能量高效的移动数据收集方法。该方法首先基于节点剩余能量进行动态分簇, 每个簇形成两个簇头来分担簇头能耗; 然后给小车装载双天线, 使得节点能够MIMO数据上传; 最后利用TSP问题找到一条最优路径, 并对移动小车的速度进行控制, 以便小车能够更快地收集数据。仿真实验结果表明, 该方法能够均衡网络流量, 延长网络寿命; 与其他算法相比, 数据收集时延较短。

Energy-efficient data gathering algorithm with speed control

In wireless sensor network, while ensuring low energy consumption of nodes to prolong the network lifetime, to reduce the latency is the core issue of data collection. The paper proposed an energy-efficient mobile data collection algorithm with speed control. Firstly, it carried out dynamic clustering based on residual energy of nodes, each clustering two heads to balance the energy. Then the sencar was equipped with dual antennas so as that nodes could upload data with MIMO system. Eventually, by means of TSP problem it searched for an optimal tour and controls speed of the sencar. In result, the car can gather data more quickly. Simulation results show that this method could balance network traffic, extend network lifetime and compared with other algorithms, data collection delay is shorter.