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Throughput improvement in interference limited multipath environments using a smart antenna for IEEE 802.11b WLAN

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3 Author(s)
Minsik Ahn ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; Dongsu Kim ; Kenney, J.S.

The results of throughput performance improvement from a ferroelectric smart antenna used in conjunction with a WLAN network interface card is presented in this paper. A two-element beamforming network was designed and implemented using ferroelectric phase shifters. The point in the radiation pattern of the two element antenna was scanned using control software so that undesired incoming interference signals could be rejected, resulting in improved SNR for the downlink. The resulting improvement in throughput afforded by this smart antenna was compared with that of a conventional switched diversity antenna for both indoor and outdoor channels under both line-of-sight and non-line-of-sight propagation environments. The smart antenna system shows better performance in terms of data throughput rate and range extension to the access point.

Published in:
Radio and Wireless Conference, 2004 IEEE

Date of Conference: 19-22 Sept. 2004

Page(s):
411 - 414
Print ISBN:
0-7803-8451-2
INSPEC Accession Number:
8231457
Digital Object Identifier :
10.1109/RAWCON.2004.1389163
Product Type:
Conference Publications

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