IEEE 802.11 DCF基础架构wlan中的语音和数据流量分析

P. Raptis, V. Vitsas, P. Chatzimisios, K. Paparrizos
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引用次数: 5

摘要

本文提出了一种新的数学模型,用于评估承载语音和数据流量的基础设施无线局域网(wlan)的性能。我们评估了接入点(AP)流和采用IEEE 802.11分布式协调功能(DCF)作为争用机制访问信道的站点的性能。考虑吞吐量、平均延迟、延迟抖动和丢包率等指标,以便在理想信道条件下评估基础设施WLAN的性能。为了避免瓶颈,提高话音站的容量,本文提出了一种突发特性。该模型考虑了基本接入方案,但可以很容易地应用于RTS/CTS方案,仿真结果验证了该模型的有效性。
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Voice and Data Traffic Analysis in IEEE 802.11 DCF Infrastructure WLANs
This paper presents a novel mathematical model for evaluating the performance of infrastructure Wireless Local Area Networks (WLANs) carrying voice and data traffic flows. We evaluate the performance of the access point (AP) flows and of the stations that employ IEEE 802.11 Distributed Coordination Function (DCF) as contention mechanism to access the channel. Metrics as throughput, average delay, delay jitter and packet loss rate are considered in order to evaluate the performance of an infrastructure WLAN assuming ideal channel conditions. The paper proposes a bursting feature to the AP to avoid bottle-neck and to increase the capacity of voice stations. The proposed model, which is validated by simulation results, considers the Basic Access scheme but can be easily applied to the RTS/CTS scheme.
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