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Performance Analysis of Space Diversity Steerable Beam Smart Antenna S-ALOHA with Arrays

Soni, PM and Chockalingam, A (2000) Performance Analysis of Space Diversity Steerable Beam Smart Antenna S-ALOHA with Arrays. In: IEEE Global Telecommunications Conference, 2000. GLOBECOM '00, 27 November-1 December, San Francisco, Vol.1, 36 -41.


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We analyze the throughput, delay and energy efficiency performance of space diversity slotted ALOHA when multibeam smart antenna arrays capable of steering the beams selectively on smaller sectors, are used at the base station receiver. Analytical expressions to establish the effect of different beamwidths, number of beams, beam steering patterns, and beam service times on the achieved performance of S-ALOHA an derived. We show that under high load conditions steered beams with long beam service times offer better performance, whereas under light loads static coverage patterns an better. We propose and analyze an energy efficient version of S-ALOUA which uses a beam sensed backoff algorithm at the user terminal. We show that the beam sensed backoff algorithm results in significant energy saving that could potentially increase battery life in wireless user terminals.

Item Type: Conference Paper
Publisher: IEEE
Additional Information: Copyright 1990 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: Space diversity;Small antennas;S-ALOHA;Energy efficiency
Department/Centre: Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited: 27 Feb 2006
Last Modified: 19 Sep 2010 04:24
URI: http://eprints.iisc.ac.in/id/eprint/5717

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