一种异构无线网络跨网通信路由自动搜索方法

Cross-Network Communication Route Automatic Search Method for Heterogeneous Wireless Network

为了提高异构无线网络跨网通信效率,降低通信开销,针对当前无线网络跨网通信路由搜索方法中存在的通信传输延时较长、通信分组到达率较低等问题,提出基于蚁群算法的异构无线网络跨网通信路由自动搜索方法。根据无线网络信息传送原理,结合各项参数与通信路由传输性能之间的关系,构建异构无线网络通信状态参数模型,并进一步构造路由体系综合性能指标各项控制系数的函数,利用fun函数求算最优系数组合;结合预先生成的路由表,获取跨网通信路由搜索空间,求算空间内路由数量与跳数,根据跳数约束,采用蚁群信息素更新算法,自动搜索最优路由路径。实验结果表明,与当前方法相比,所提通信路由自动搜索方法的通信传输延时明显缩短,通信分组到达率较高,其运行稳定性更强,且相应的通信开销更低。

In order to improve the efficiency of cross-network communication of heterogeneous wireless network and reduce communication overhead, this paper proposes a method to automatically search cross-network communication route in heterogeneous wireless network based on ant colony algorithm. Based on the principle of wireless network information transmission and combined with the relationship between various parameters and communication route transmission performance, the model of heterogeneous wireless network communication status parameter was constructed. Further, the functions of various control coefficients in the comprehensive index of routing system were constructed. Moreover, the fun function was used to calculate the optimal coefficient combination. Combined with the pregenerated routing table, the search space of cross-network communication route was obtained and the number of routes and hops in the space was calculated. According to the hop count constraint, the ant colony pheromone update algorithm was used to automatically search the optimal routing path. Simulation results prove that the communication transmission delay of the proposed method is significantly shortened, and the communication packet arrival rate is higher than the current method. Meanwhile, the running stability is stronger and the corresponding communication overhead is lower.