多跳无线网网络拓扑控制优化目标研究

Study on optimum objective of topology control in multi-hop wireless networks

研究了多跳无线网中网络性能与网络拓扑结构关系的问题。数值计算结果表明网络节点只与“最邻近”的节点建立链路时形成的拓扑结构节点的吞吐量最大,这样的拓扑结构同时能满足网络的低功耗、低截获概率和可靠性要求。计算机仿真结果验证了上述结论。因而,网络拓扑控制的目标就转化为节点在邻节点中选择“最邻近”节点,继而建立逻辑链路的问题。

The relationship between the topology structure and its performance in the multi-hop wireless networks was studied. The number result showed that the topology constructed by nodes and their most neighborhood nodes has the best throughput, and at the same time this topology can meet the requirements for low power consumption, low probability of intercept and high reliability. The conclusion was validated by our simulation results. Thus the objective of topology control is turn to the problem of selecting the most neighborhood nodes for the node from all the nodes around it and establishing logical connections with them.