中文摘要：

为解决用于输电线路监测的长链结构传感器网络中因提升节点发射功率带来的节点间竞争激烈,数据传输时延大,以及节点分布不均匀,网络区域性数据转发能力不均衡导致的传输瓶颈等问题,提出了一种基于地理位置的功率和信道调整相结合的抗干扰方法,依据地域性将节点进行隐式分簇,每个节点都以最大发射功率和与所处区域相对应的频段进行数据传输,当出现断层时,与断层区域对应的同频区域节点采用发射功率和信道调整相结合的机制与邻近其余层次节点进行通信。对该方案进行了仿真实验,实验结果证明了该方法使得网络吞吐量明显增大,而数据包的平均传输跳数和传输时延显著减小,从而获得了较好的网络容量和实时性。

英文摘要：

Some issues must be solved for the long chain tree-like sensor networks used for power transmission line monitoring,including fierce communication competition between nodes and large transmission delay caused by enhancing transmitting power,and transmission bottleneck caused by uneven distribution of nodes and the imbalance of the regional data forwarding capacity etc.To solve these problems,a kind of anti-jamming method using the combination of power and channels adjustment is thus presented.The nodes are clustered implicitly according to their location.Each node forwards data with the maximum transmission power,and the corresponding frequencies of its area.When faulting,the nodes within the same frequency region as the faulting region use the combining mechanism of transmitting power and channel adjustment to communicate with the nodes in the rest adjacent levels.Finally,the proposed method is simulated,and the simulation results show that the network throughput obviously increases,while the average packet transmission hop count and transmission delay are significantly reduced.Thus a better network capacity and real-time are got.