TO-DCF, a new backoff scheme for 802.11, has the potential to significantly increase throughput in dense wireless LANs while also opportunistically favouring nodes with heavier traffic loads and/or better channel conditions. In this paper we present an analytical model to investigate the behaviour and performance of the TO-DCF protocol with regards to operating parameters such as the number of nodes, the contention window size and the backoff countdown probabilities. We then compare numerical results from an implementation of our model with simulations. Our model shows a high level of accuracy, even when the model assumptions are relaxed, and provides guidance for network operators to correctly configure the weight functions for nodes running TO-DCF given the network's operating conditions.

中文翻译：

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吞吐量最佳分布式协调功能（TO-DCF）的分析模型。

TO-DCF是一种针对802.11的新退避方案，具有显着提高密集无线LAN吞吐量的潜力，同时也有机会偏爱流量负载较大和/或信道条件更好的节点。在本文中，我们提供了一个分析模型，以研究TO-DCF协议的行为和性能，涉及的操作参数包括节点数，竞争窗口大小和退避倒计时概率。然后，我们将模型实现的数值结果与仿真结果进行比较。即使在放松模型假设的情况下，我们的模型也显示出很高的准确性，并为网络运营商在网络运行条件下为运行TO-DCF的节点正确配置权重函数提供了指导。