【摘要】 提出一种适用于大规模、高查询率而单次查询需要传输的数据量很小、位置信息无关的无线传感器网络查询方法——CBQM。该方法以小世界理论为依据,在CARD和TRANSFER协议的基础上,引入了方向边节点,改进了contact的选择方法,降低了协议的能耗,提高了网络生命周期。通过仿真得出,在保证查询成功率的前提下,CBQM的查询最优能耗与CARD相比降低了约38%,比TRANSFER降低了40%以上。更多还原

【Abstract】 This paper described and evaluated through simulation a scheme called CBQM,which allowed for queries to be delivered to events in large-scale wireless sensor networks.CBQM was based on small world theory and CARD and TRANSFER protocol,and improved contact selection method of CARD and TRANSFER protocol by directed border neighbor node.At last,this paper compared performance of CBQM,CARD and TRANSFER.CBQM is suitable for case of high query rate and little transmit task.更多还原