A Routing Protocol and Energy Efficient Techniques in Bluetooth Scatternets

Prabhu, Balakrishna J and Chockalingam, A (2002) A Routing Protocol and Energy Efficient Techniques in Bluetooth Scatternets. In: 2002 IEEE International Conference on Communications. ICC 2002, 28 April-2 May, New York,USA, Vol.5, 3336-3340.

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Abstract

In this paper, we propose a protocol for routing in Bluetooth scatternets. The protocol uses the available battery power in the Bluetooth (BT) devices as a cost metric in choosing the routes. We evaluate the throughput performance as a function of packet arrival rate and number of piconets. A throughput of about 120 kbps/piconet is shown to be achieved in a 5-piconet scatternet. We propose two techniques, namely a) battery power level based master-slave switch and b) distance based power control, to increase the network lifetime in scatternets. The master-slave switch technique is motivated by the fact that a piconet master has to handle the packet transmissions to/from all its slaves, and hence may drain its battery soon. We propose a role switching idea where each BT device in a piconet may have to play the master role depending on its available battery power. In the second technique, we propose that the BT devices choose their transmit powers based on their distances from their respective masters. Our performance results show that a considerable gain in network lifetime can be achieved using these two power saving techniques.

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:	Bluetooth scatternet;Network lifetime;Masterslave switch; power control
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	07 Feb 2006
Last Modified:	19 Sep 2010 04:23
URI:	http://eprints.iisc.ac.in/id/eprint/5301

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