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在无线传感器网络中传感器节点相互协同完成感知任务,以传感器量测的信息效用与获取量测的能量消耗来折中地选择参与节点,但用户对服务质量(QoS)的需求并没有在节点选择时得以体现.为此,提出一种自适应动态协同自组织算法(A-DCS).该算法能根据用户给定的精度需求,自适应地选择簇首,确定参与感知任务的簇成员顺序和个数,并计算相应的能量消耗.以目标跟踪为应用背景的仿真结果表明,在跟踪精度和能量消耗2个指标下,该算法优于信息驱动传感器查询(IDSQ)和动态协同自组织(DCS).
In wireless sensor networks, sensor nodes cooperate with each other to accomplish the sensing task. The information utility of sensor measurement and the energy consumption of measurement are used to select the participating nodes flexibly. However, the quality of service (QoS) needs of users are not selected at the nodes This paper proposes an adaptive dynamic cooperative self-organizing algorithm (A-DCS). This algorithm can adaptively select the cluster heads according to the accuracy requirements given by the user, and determine the order of the cluster members participating in the perception task And the corresponding energy consumption are calculated.The simulation results based on target tracking show that the proposed algorithm is superior to IDSQ and DCS in terms of tracking accuracy and energy consumption, ).