Measurement based capacity scavenging via whitespace modeling in wireless networks

Authors:
Anthony Plummer, Jr.;Mahmoud Taghizadeh;Subir Biswas
Affiliations:
Department of Electrical and Computer Engineering, Michigan State University;Department of Electrical and Computer Engineering, Michigan State University;Department of Electrical and Computer Engineering, Michigan State University
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 3
Cited 2

Dynamic spectrum access in WLAN channels: empirical model and its stochastic analysis

TAPAS '06 Proceedings of the first international workshop on Technology and policy for accessing spectrum
Joint Design and Separation Principle for Opportunistic Spectrum Access in the Presence of Sensing Errors

IEEE Transactions on Information Theory
Cognitive Medium Access: Constraining Interference Based on Experimental Models

IEEE Journal on Selected Areas in Communications

Residual white space distribution-based opportunistic channel access for cognitive radio enabled devices

Proceedings of the ACM SIGCOMM 2010 conference
A comprehensive methodology for opportunistic spectrum access based on residual white space distribution

Proceedings of the 4th International Conference on Cognitive Radio and Advanced Spectrum Management

Quantified Score

Hi-index	0.00

Visualization

Abstract

Dynamic Spectrum Access can enable secondary network users to access unused spectrum, or whitespace, which is found between the transmissions of primary users in a wireless network. The main design objectives for secondary user access strategy are to be able to "scavenge" spatiotemporally fragmented whitespace opportunities while limiting the amount of interference caused to the primary users. In this paper, we propose a novel secondary user access strategy which is based on measurement and modeling of the whitespace as perceived by the secondary network users. A secondary user continually monitors its surrounding whitespace, models it, and then attempts to access the available spectrum holes so that the effective secondary throughput is maximized while the resulting interference to the primary users is limited to a pre-defined bound. We first develop analytical expressions for the secondary throughput and primary interference, and then perform ns2 based simulation experiments to validate the effectiveness of the proposed access strategy, and evaluate its performance numerically using the developed expressions.