IEEE 802.11a在非饱和条件下的性能分析

2009 IEEE International Conference on Network Infrastructure and Digital Content Pub Date : 2009-12-31 DOI:10.1109/ICNIDC.2009.5360816

Liu Wen, Zehua Gao, Feng Gao, D. Tang, Ronghua Zhao

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引用次数: 3

摘要

IEEE 802.11a规定的最大标称数据速率最高可达54Mbps。然而，在实际应用中，我们发现用户可以获得的数据速率远低于此值。为了准确评估IEEE 802.11a支持数据业务的能力，本文改进了现有退窗方案的二维马尔可夫链模型，从分帧效率和MAC层信道传输效率两个角度分析了IEEE 802.11a标准在非饱和条件下对无线局域网的效率。具体来说，我们推导了协议实际吞吐量的解析公式。所提出的模型和分析结果将有助于研究人员进一步研究如何预测和优化系统性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Performance analysis of IEEE 802.11a in non-saturation conditions

The maximum nominal data rate specified in IEEE 802.11a is up to 54Mbps. However, in practice, we find that the data rate which users can get is much lower than that. In order to accurately evaluate the ability of IEEE 802.11a to support data services, we improve the existing two-dimensional Markov chain models of the backoff window scheme, and analyze the efficiency of the IEEE 802.11a standard for wireless LANs in non-saturation conditions from the perspective of framing efficiency and MAC layer channel transport efficiency in this paper. Specifically, we derive an analytical formula for the protocol actual throughput. The proposed model and the analytical results will help researchers to further study how to predict and optimize the system performance.

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2009 IEEE International Conference on Network Infrastructure and Digital Content

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