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Proceedings Paper

Evaluation of dynamic slot allocation algorithms for the smart wireless LAN system
Author(s): Garret T. Okamoto; Shiann-Shiun Jeng; Guanghan Xu
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Paper Abstract

Conventional wireless LAN (WLAN) protocols such as IEEE 802.11 allow only one user to transmit at a time in a frequency band. The Smart Wireless LAN (SWL) system adapts smart antenna systems for WLANs to enable multiple WLAN users to transmit simultaneously in a frequency band. Dynamic slot algorithms are used by SWL to improve transmission quality and maximize capacity by selecting users for time slots based on their unique spatial signatures (SS). These types of algorithms have not been studied much for conventional WLANs because only one user is allowed to transmit per time slot in those systems, eliminating the need for slot assignment. The simulation results, showing the tradeoffs of the various algorithms studied, are presented and analyzed. Experimental results studying the stability of the SS for a stationary transmitter and the variation of the SS with displacement are presented, and show the feasibility of using smart antennas with WLAN systems.

Paper Details

Date Published: 24 June 1999
PDF: 11 pages
Proc. SPIE 3708, Digital Wireless Communication, (24 June 1999); doi: 10.1117/12.351236
Show Author Affiliations
Garret T. Okamoto, Santa Clara Univ. (United States)
Shiann-Shiun Jeng, Chung Yuan Univ. (Taiwan)
Guanghan Xu, Univ. of Texas/Austin (United States)

Published in SPIE Proceedings Vol. 3708:
Digital Wireless Communication
Raghuveer M. Rao; Soheil A. Dianat; Michael D. Zoltowski, Editor(s)

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