摘要
对海洋水下无线传感网络资源进行准确探测,可以提高资源的利用率。在进行资源探测时,应获取节点资源重要度贡献矩阵的映射规则,得到关键节点在其所在区域的相对探测概率,组建关键节点探测概率模型,完成节点所对应的资源探测,传统方法通过形成资源漏洞关系库,对海洋水下无线传感网络资源进行探测,但是无法获得节点资源重要度贡献矩阵的映射规则,不能计算关键节点在所在区域的相对探测概率,降低了资源探测的准确性。提出一种基于重要度评价的海洋水下无线传感网络资源准确探测方法。将无线传感网络中任意两个节点间最大值定义为网络的直径,计算网络中各个节点对之间距离倒数和的平均值,构建节点资源重要度贡献矩阵,给出矩阵的映射规则,获取节点间的关联性,得到关键节点在所在区域的相对风险概率,组建关键节点探测概率模型,计算出网络关键节点探测概率与其影响函数的乘积,利用计算的结果完成海洋水下无线传感网络资源准确探测,仿真结果表明,所提方法探测精确度高,为海底资源开采等应用提供了有效的依据。
In this paper, the author propose an accurate resource detection method of underwater wireless sensor network in ocean based on importance evaluation. Firstly, the research defined maximum between any two nodes in wireless sensor network as network diameter, and calculated average value of distance reciprocal sum between each node pair. Then, the contribution matrix of node resource importance degree was built to provide mapping rule of ma- trix, and the relevance between nodes was acquired to obtain relative risk probability of key node in its region. Moreo- ver, the research built detection probability model of key node and worked out product of key node detection probabil- ity and its influence function. Finally, the computation results were used to complete accurate resource detection. Simulation results show that the method mentioned above has higher detection precision and can provide effective basis for application of submarine resource mining.
出处
《计算机仿真》
北大核心
2017年第7期260-263,共4页
Computer Simulation
关键词
水下无线传感网络
关键节点
资源探测
Underwater wireless sensor network
Key node
Resource detection
