摘要
为了解决井下链状无线传感器网络中距离Sink节点越近的节点越早死亡的问题,提出了一种井下WSN基于SPIN路由协议的改进算法,该算法结合狭长直巷道模型与多重覆盖模型,运用梯度划分的方法,通过判定彼此梯度信息决定数据信息接收方,来均衡整个网络的能量消耗,延长网络寿命。对比改进前后的能量损耗模型可知,改进后的算法能有效延长网络寿命,实验表明,该算法较NCWSNFGM方案可延长至少5%的网络寿命。
In order to effectively alleviate the problem that,the node closer to the Sink node,the earlier it will die in underground chain-type wireless sensor networks,this paper puts forward an improved algorithm based on the SPIN algorithm for WSN in underground, the algorithm combined with the narrow straight roadway model and multiple coverage model,using the gradient method of partitioning and judging the gradient information of received ADV to decision data information receiver, balance the energy consumption of entire network, and extend the network lifetime. The improved energy loss model algorithm can prolong the network lifetime efficiently, simulation results show that the improved algorithm can extend the network lifetime at least 5% than that of NCWSNFGM.
出处
《传感技术学报》
CAS
CSCD
北大核心
2014年第4期564-569,共6页
Chinese Journal of Sensors and Actuators
关键词
无线传感器网络
路由算法
梯度划分
狭长直巷道
链状网络
SPIN
wireless sensor networks
routing algorithm
SPIN
gradient divide
straight narrow tunnel
chain-type networks
