无线Mesh网络中基于奖励机制的均衡传输方案

Application of Balanced Transmission Mechanism Based on Reward in Wireless Mesh Network

摘要:

针对无线Mesh网络存在自私节点而造成的双向流量的均衡问题,提出了一种基于奖励机制的均衡传输方案。首先,推导出了每个传输访问点(TAP)的双向目标吞吐量。然后,提出一种奖励机制,通过信用币和代币支付策略来鼓励闲置TAP转发数据,同时使网关尽可能均衡地向TAP传输下行数据。在一个具有3个TAP的无线Mesh网络上仿真结果表明,该方法能够在存在自私节点情况下确保双向流量的均衡。

Abstract:

A balanced transmission scheme based on incentive mechanism is proposed to solve the problem of bidirectional traffic caused by selfless node in wireless Mesh network. First, the bidirectional target throughput of each transport access point (TAP) is deduced. Then, an incentive mechanism is proposed to encourage the idle TAP forwarding data through the credit and tokens payment strategy, while allowing the gateway to transmit the downlink data as much as possible to the TAP. Simulation results on a wireless Mesh network with three TAPs show that the method can ensure the balance of bidirectional traffic in the presence of selfish nodes.