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在多射频多信道无线Mesh网中提出了一种支持流量感知的信道分配算法.首先,介绍了基于信号与干扰噪声比和成功传输条件的物理干扰模型,该模型比其他模型更适用于无线传输环境.然后,使用纯整数线性规划方法来解决信道分配问题,提高无线Mesh网网络容量.在考虑网络连通性要求,射频数量限制和无线通信中成功传输条件等网络参数的基础上,设计了TASC信道分配算法.TASC算法在保证网络连通的同时降低了网络干扰,提高了信道分配效率.最后,仿真实验结果表明了该算法在容量优化方面的可行性和高效性.与同类算法比较,该算法能有效提高无线Mesh网网络容量.
In the multi-radio multi-channel wireless Mesh network, a traffic assignment-aware channel assignment algorithm is proposed.Firstly, a physical interference model based on signal-to-interference and noise ratio and successful transmission conditions is introduced, which is more suitable for wireless transmission than other models Environment.Then, using pure integer linear programming method to solve the channel assignment problem and improve the capacity of wireless Mesh network.According to network connectivity requirements, the number of RF limits and the successful transmission conditions in wireless communications network parameters based on the design of the TASC Channel assignment algorithm.TASC algorithm can reduce network interference and improve channel assignment efficiency while ensuring network connectivity.Finally, simulation results show that the algorithm is feasible and efficient in capacity optimization.Compared with similar algorithms, this algorithm Can effectively improve the wireless mesh network capacity.