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多接口多信道技术是无线网络环境中减少链路干扰、提高网络吞吐量的有效途径,但如何合理有效地进行信道分配已成为多接口多信道无线网络所面临的主要问题之一.针对自私的网络节点,本文使用非合作博弈对异构条件下多接口节点的信道分配问题进行建模分析,其纳什均衡解为解决该问题所需的稳定的信道分配方案.本文首先讨论纳什均衡的存在条件并提出实现纳什均衡的分布式算法.此外,考虑到实际网络中节点仅能感知局部信道信息以及接口工作信道受限等因素,本文进一步改进算法并通过仿真实验对其收敛性进行证明.
Multi-interface and multi-channel technology is an effective way to reduce link interference and improve network throughput in wireless network environment, but how to allocate channels reasonably and efficiently has become one of the major problems in multi-interface and multi-channel wireless networks. Network nodes, this paper uses the non-cooperative game to model the channel assignment problem of heterogeneous multi-interface nodes, and its Nash equilibrium solution is the stable channel assignment scheme needed to solve the problem.This paper first discusses the existence conditions of Nash equilibrium And propose a distributed algorithm to achieve Nash equilibrium.In addition, taking into account the actual nodes in the network can only perceive local channel information and the interface working channel is limited and other factors, this paper further improve the algorithm and through simulation experiments to prove its convergence.