Temporal Spectrum Sharing Based on Primary User Activity Prediction

In this paper we investigate the opportunistic spectrum access in temporal domain where a secondary user shares a radio channel with a primary user during the OFF period of the primary user. We consider practical ON/OFF traffic models whose bursty natures are not properly described by a Markovian as...

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Bibliographic Details
Published in:IEEE transactions on wireless communications 2010-12, Vol.9 (12), p.3848-3855
Main Authors: Ki Won Sung, Seong-Lyun Kim, Zander, Jens
Format: Article
Language:English
Subjects:
Channels
Exponential distribution
Information technology
Informationsteknik
Interference
Mathematical models
Numerical models
Opportunistic spectrum access
Optimization
Sensors
Strategy
Synchronization
TECHNOLOGY
TEKNIKVETENSKAP
Telecommunication
Telekommunikation
Temporal logic
temporal spectrum sharing
Traffic engineering
Traffic flow
traffic model
transmission power control
Wireless communication
Wireless sensor networks
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Description
Summary:In this paper we investigate the opportunistic spectrum access in temporal domain where a secondary user shares a radio channel with a primary user during the OFF period of the primary user. We consider practical ON/OFF traffic models whose bursty natures are not properly described by a Markovian assumption. An optimal strategy to determine the transmission power of the secondary user is proposed, which can be adapted to any source traffic model of the primary user. This strategy will maximize the spectrum utilization of the secondary user while keeping interference violations to the primary user below a threshold. Numerical results show that the transmission power of the secondary user depends on the probability distribution of the primary traffic as well as the elapsed time of the OFF period.
ISSN:1536-1276
1558-2248
1558-2248
DOI:10.1109/TWC.2010.101810.100433