DocumentCode :
1273988
Title :
On the Performance of Packet Aggregation in IEEE 802.11ac MU-MIMO WLANs
Author :
Bellalta, Boris ; Barcelo, Jaume ; Staehle, Dirk ; Vinel, Alexey ; Oliver, Miquel
Author_Institution :
Univ. Pompeu Fabra, Spain
Volume :
16
Issue :
10
fYear :
2012
fDate :
10/1/2012 12:00:00 AM
Firstpage :
1588
Lastpage :
1591
Abstract :
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.
Keywords :
MIMO communication; multi-access systems; multiplexing; scheduling; wireless LAN; IEEE 802.11ac MU-MIMO WLAN; multiuser multiple input multiple output WLAN; multiuser spatial multiplexing; packet aggregation; scheduling; wireless local area networks; Antennas; Delay; IEEE 802.11n Standard; MIMO; Multiplexing; System performance; Throughput; IEEE 802.11ac; MU-MIMO; WLANs; packet aggregation;
fLanguage :
English
Journal_Title :
Communications Letters, IEEE
Publisher :
ieee
ISSN :
1089-7798
Type :
jour
DOI :
10.1109/LCOMM.2012.081612.120744
Filename :
6287486
Link To Document :
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