A dynamic link adaptation algorithm for IEEE 802.11 a wireless LANs

Author

Chevillat, P. ; Jelitto, J. ; Barreto, A. Noll ; Truong, H.L.

Author_Institution

Zurich Res. Lab., IBM Res. Div., Ruschlikon, Switzerland

Volume

2

fYear

2003

fDate

11-15 May 2003

Firstpage

1141

Abstract

We present a simple but powerful dynamic link adaptation mechanism for wireless LANs, which are based on the IEEE 802.11a standard. Using this method, a transmitter is able to detect whether the quality of the link is improving or deteriorating, and based on this information to switch to a higher or lower transmission rate, respectively. For determining the link quality, the transmitter employs only information that is available locally. Therefore, the proposed method can be implemented without changes or enhancements to the current IEEE 802.11 standard. The efficiency of our method is investigated and evaluated by means of simulations.

Keywords

IEEE standards; radio links; transmitters; wireless LAN; IEEE 802.11a standard; dynamic link adaptation algorithm; link quality; transmission rate; transmitter; wireless LAN; Heuristic algorithms; Interference; Local area networks; Physical layer; Radio transmitters; Signal to noise ratio; Switches; System performance; Throughput; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Conference_Location

Anchorage, AK

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204543

Filename

1204543