A novel co-existence algorithm for unlicensed variable power devices
Authors:
- D.P. SatapathyDSD.P. Satapathy
- J.M. PehaJPJ.M. Peha
- 13 November 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 9, 2845-2849
Abstract
In unlicensed spectrum, any device is free to transmit without a license. Such spectrum has significant benefits, but serious challenges must first be overcome. Foremost is the risk of drastic performance degradation due to a lack of incentive to conserve shared resources. Previous work has identified this problem for devices that transmit for longer duration than necessary. This paper demonstrates this problem for devices that always transmit at maximum power to maximize throughput. For devices that can vary transmission power, the problem is solved if devices reduce transmission power when received interference exceeds defined thresholds. We propose a co-existence algorithm to optimize system throughput when each of two such devices can transmit up to the maximum power allowed on a given channel. We show device performance with current unlicensed band regulations is rarely optimal, and that the proposed algorithm is better.Keywords
This publication has 7 references indexed in Scilit:
- Recent progress in U.S. millimeter wave spectrum management policy2002
- Etiquette modification for unlicensed spectrum: approach and impact2002
- Performance of unlicensed devices with a spectrum etiquette2002
- A novel co-existence algorithm for unlicensed fixed power devices2000
- Wireless communications and coexistence for smart environmentsIEEE Wireless Communications, 2000
- Spectrum management policy optionsIEEE Communications Surveys & Tutorials, 1998
- The Tragedy of the CommonsScience, 1968