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On the performance of packet aggregation in IEEE 802.11ac MU-MIMO WLANs

机译:关于IEEE 802.11ac MU-MIMO WLAN中数据包聚合的性能

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摘要

Multi-user spatial multiplexing combined with packet aggregation can significantly increase the performance of Wireless Local Area Networks (WLANs). In this letter, we present and evaluate a simple technique to perform packet aggregation in IEEE 802.11ac MU-MIMO (Multi-user Multiple Input Multiple Output) WLANs. Results show that in non-saturation conditions both the number of active stations (STAs) and the queue size have a significant impact on the system performance. If the number of STAs is excessively high, the heterogeneity of destinations in the packets contained in the queue makes it difficult to take full advantage of packet aggregation. This effect can be alleviated by increasing the queue size, which increases the chances of scheduling a large number of packets at each transmission, hence improving the system throughput at the cost of a higher delay. © 1997-2012 IEEE.
机译:多用户空间复用与数据包聚合相结合可以显着提高无线局域网(WLAN)的性能。在这封信中,我们介绍并评估了一种简单的技术,以在IEEE 802.11ac MU-MIMO(多用户多输入多输出)WLAN中执行数据包聚合。结果表明,在非饱和条件下,活动站点(STA)的数量和队列大小都对系统性能产生重大影响。如果STA的数量过多,则队列中包含的数据包中的目标的异质性将使得难以充分利用数据包聚合。可以通过增加队列大小来减轻此影响,这增加了在每次传输时调度大量数据包的机会,从而以更高的延迟为代价提高了系统吞吐量。 ©1997-2012 IEEE。

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