Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/87530
Title: Spectrum sharing for heterogeneous networks and application systems in TV white spaces
Authors: Zhang, Wenjie
Zhang, Guanglin
Zheng, Yifeng
Yang, Liwei
Yeo, Chai Kiat
Keywords: Spectrum Sharing
Heterogeneous Systems
Issue Date: 2018
Source: Zhang, W., Zhang, G., Zheng, Y., Yang, L., & Yeo, C. K. (2018). Spectrum sharing for heterogeneous networks and application systems in TV white spaces. IEEE Access, 6, 19833-19843.
Series/Report no.: IEEE Access
Abstract: In 2010, federal communications commission released the final ruling to allow the unlicensed operation of TV white spaces, i.e., locally vacant TV channels. Since TV white spaces are open to all networks and all types of applications, it is likely that there will be multiple networks and application systems authorized to use the same TV channels at the same time. Currently, there is mechanism for different users to operate in the TV white spaces within one system, while TV spectrum sharing among heterogeneous networks and application systems is largely ignored. To address the problem, this paper designs a trading mechanism to study the TV spectrum market between Geolocation database and heterogeneous application systems. We formulate the spectrum sharing problem into a 0-1 integer optimization problem and prove that this problem is NP-complete. The proposed solution decomposes an optimal fractional solution of a NP-hard problem into a convex combination of internal solutions by randomized rounding algorithm. Simulation results show that the proposed approximation algorithm can achieve a close-to-optimal solution with far less complexity.
URI: https://hdl.handle.net/10356/87530
http://hdl.handle.net/10220/45456
DOI: 10.1109/ACCESS.2018.2824836
Rights: © 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCSE Journal Articles

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