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随着传感器应用范围的扩展,在复杂地形部署不同类型异构节点已是一个必然趋势。首先对同构蜂窝网格的网络传输功耗进行了研究;其次从拓扑学角度把同构蜂窝网格结构延伸到异构网络环境中,严格计算理想状态下无缝覆盖监测区域下两类节点的通信半径比例,提出异构蜂窝网格结构;最后利用数学建模、几何理论和数据归纳法,建立异构环境下的能量模型,对异构蜂窝网格的能量消耗方式进行了分析,并比较同构和异构网络下的能量优劣。仿真实验表明,异构蜂窝网格环境下节点收发数据的能量消耗更少。
With the expansion of sensor applications, deploying different types of heterogeneous nodes in complex terrain is an inevitable trend. Firstly, the network transmission power consumption of isomorphic cellular grid is studied. Secondly, the isomorphic cellular grid structure is extended from topological perspective to heterogeneous network environment. The two types of nodes under the ideal state are seamlessly covered under the monitoring area The paper proposes a heterogeneous cellular grid structure. Finally, using mathematical modeling, geometric theory and data induction, the energy model of heterogeneous environment is established and the energy consumption patterns of heterogeneous cellular grid are analyzed. Compare the advantages and disadvantages of energy in homogeneous and heterogeneous networks. Simulation results show that nodes in heterogeneous cellular grid receive and transmit data with less energy consumption.