基于位置信息的WSNs数据转发优化算法

Energy efficient geography-based data forwarding algorithm for multi-hop wireless sensor network

针对无线传感器网络(WSNs)中数据传输效率低和延时长的问题,提出一种基于地理位置信息的能源有效性数据转发算法(EEGDF)。利用节点的双无线电频道合作和基于概率合作监听网络中的每个监听周期,保证本地节点等级的一致性,减少节点能量消耗;采用基于位置信息、链接质量成本函数和优先级的方案,驱散候选转发节点间的竞争并选择最优的转发节点,减少延迟和控制开销。仿真结果表明,该算法在能源消耗、多跳延迟、数据递送率和网络节点中平衡剩余能量方面都优于基于节点地理位置的随机转发(GeRaF)协议。

In view of the low efficiency and long time delay of the wireless sensor networks（WSNs）,a kind of energy efficiency data forwarding algorithm（EFGDF）based on the geographical location information was proposed.Firstly,through the double wireless channel cooperation of the nodes and monitor of each monitor period in the network based on frequency cooperation,the consistency of levels of local nodes was ensured and the energy consumption of nodes was reduced.Secondly,through the scheme based on location information,link quality cost function and priority,the competition among the forwarding nodes was dispersed and the optimal forwarding node was selected to reduce delay and control cost.Simulation results show that,the algorithm is superior to the geographic random forwarding（GeRaF）treaty based on geographic locations of the nodes.