CAJ | 학술논문

在无线传感器网络的路由协议中考虑数据融合能极大地提高网络生存期性能，但随之会带来网络可靠性下降、数据传输延迟增加等问题。设计一种新的可权衡能耗与延迟的数据融合算法ECLT，通过二级模糊综合评判的方式来调整原有的路由信息，增加数据传输路径间的交叠，以提高数据融合度、延长网络生存期；同时，传感节点在转发数据的过程中还可根据本身状态来动态调整进行数据融合的等待时间，从而在均衡网络中各节点能耗的同时减少了数据传输延迟。经仿真验证，该算法能在极大的延长无线传感器网络使用寿命的同时降低数据的平均传输延迟。
재무선전감기망락적로유협의중고필수거융합능겁대지제고망락생존기성능，단수지회대래망락가고성하강、수거전수연지증가등문제。설계일충신적가권형능모여연지적수거융합산법ECLT，통과이급모호종합평판적방식래조정원유적로유신식，증가수거전수로경간적교첩，이제고수거융합도、연장망락생존기；동시，전감절점재전발수거적과정중환가근거본신상태래동태조정진행수거융합적등대시간，종이재균형망락중각절점능모적동시감소료수거전수연지。경방진험증，해산법능재겁대적연장무선전감기망락사용수명적동시강저수거적평균전수연지。
Considering data aggregation can greatly improve the performance of network lifetime in the routing protocol of wireless sensor networks, but it will bring some problems, such as decreasing network reliability and increasing data transmission delay. In this paper, a new data aggregation algorithm ECLT is designed for balancing energy consumption and transmission delay. It can adjust the original routing information by using the two stage fuzzy comprehensive evalua-tion, and increase overlap between the data transmission path, in order to improve the degree of data aggregation and pro-long the network lifetime. At the same time, the timing mechanism of data aggregation also can be dynamically adjusted according to sensor node’s state in the process of forwarding data, thereby balancing the energy consumption of all the nodes in the network and reducing the data transmission delay. By means of simulating in OMNeT++, the algorithm ECLT can greatly extend the service life of wireless sensor networks and reduce the average transmission delay.