A Novel Adaptive Scheme to Improve the Performance of the IEEE 802.11n WLANs

Author

Parthasarathy, Sangheetha Salai ; Zeng, Qing-An

Author_Institution

Dept. of Comput. Sci., Univ. of Cincinnati, Cincinnati, OH

Volume

2

fYear

2007

fDate

21-23 May 2007

Firstpage

334

Lastpage

339

Abstract

With the advent of the IEEE 802.11n standard , that uses multiple input multiple output (MIMO) technology at the physical layer, there has been awareness about harnessing the physical layer techniques to improve the performance of a wireless local area network (WLAN) system. Our proposed scheme adoptively changes the number of antennas and the modulation scheme based on the channel conditions and type of traffic. Dynamic frame aggregation at the MAC layer is also proposed based on the channel conditions. The proposed scheme shows marked overall system improvement in terms of throughput and lesser number of automatic repeat requests (ARQ), with better overall channel utilization.

Keywords

IEEE standards; MIMO communication; performance evaluation; wireless LAN; IEEE 802.11n WLAN; IEEE 802.11n standard; MAC layer; adaptive scheme; automatic repeat requests; channel conditions; channel utilization; dynamic frame aggregation; modulation scheme; multiple input multiple output technology; performance; wireless local area network; Automatic repeat request; MIMO; Media Access Protocol; OFDM; Physical layer; Quality of service; Receiving antennas; Signal processing; Throughput; Wireless LAN; Channel Utilization; IEEE 802.11n; MIMO; Throughput.; WLAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Information Networking and Applications Workshops, 2007, AINAW '07. 21st International Conference on

Conference_Location

Niagara Falls, Ont.

Print_ISBN

978-0-7695-2847-2

Type

conf

DOI

10.1109/AINAW.2007.37

Filename

4224126