Preserving Operation Frequency Privacy of Incumbents in CBRS

Citizens Broadband Radio Service (CBRS) is a novel service band in the United States, spanning 3550 – 3700 MHz, recently opened for commercial cognitive operations. The CBRS has a three tier hierarchical architecture, wherein, the topmost tier users (also called as incumbents) include mil...

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Main Authors: Pranay Agarwal, Abhinav Kumar, Rie Shigetomi Yamaguchi
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9576726/
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author Pranay Agarwal
Abhinav Kumar
Rie Shigetomi Yamaguchi
author_facet Pranay Agarwal
Abhinav Kumar
Rie Shigetomi Yamaguchi
author_sort Pranay Agarwal
collection DOAJ
description Citizens Broadband Radio Service (CBRS) is a novel service band in the United States, spanning 3550 – 3700 MHz, recently opened for commercial cognitive operations. The CBRS has a three tier hierarchical architecture, wherein, the topmost tier users (also called as incumbents) include military radars. The second and third tier facilitate licensed and unlicensed access to the band, respectively. The privacy of incumbents has been a major concern and different schemes have been proposed in the literature to preserve privacy of their location and operation time. However, the privacy of operation frequency of incumbents has not been suitably addressed. The operation frequency of incumbent is vulnerable to inference attacks from the adversary. For instance, an adversary can deduce the operation frequency of incumbent if a compromised device is asked to switch to another channel. Therefore, in this paper, we propose probabilistic usage of dummy incumbents on a channel and analyse the operation frequency privacy of incumbents for snapshot and time based models in the three tier CBRS system. The optimum dummy generation probability is obtained for the snapshot and time based models, varying capabilities of the adversary, and different system parameters. Finally, we verify the proposed results through simulations.
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spelling doaj.art-0a585316d5f84397aa35fe52d7515e862022-12-22T03:34:51ZengIEEEIEEE Access2169-35362022-01-011011102211104110.1109/ACCESS.2021.31207189576726Preserving Operation Frequency Privacy of Incumbents in CBRSPranay Agarwal0https://orcid.org/0000-0003-4323-7051Abhinav Kumar1https://orcid.org/0000-0002-6468-7054Rie Shigetomi Yamaguchi2Department of Electrical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, IndiaDepartment of Electrical Engineering, Indian Institute of Technology Hyderabad, Hyderabad, IndiaGraduate School of Information Science and Technology, The University of Tokyo, Tokyo, JapanCitizens Broadband Radio Service (CBRS) is a novel service band in the United States, spanning 3550 – 3700 MHz, recently opened for commercial cognitive operations. The CBRS has a three tier hierarchical architecture, wherein, the topmost tier users (also called as incumbents) include military radars. The second and third tier facilitate licensed and unlicensed access to the band, respectively. The privacy of incumbents has been a major concern and different schemes have been proposed in the literature to preserve privacy of their location and operation time. However, the privacy of operation frequency of incumbents has not been suitably addressed. The operation frequency of incumbent is vulnerable to inference attacks from the adversary. For instance, an adversary can deduce the operation frequency of incumbent if a compromised device is asked to switch to another channel. Therefore, in this paper, we propose probabilistic usage of dummy incumbents on a channel and analyse the operation frequency privacy of incumbents for snapshot and time based models in the three tier CBRS system. The optimum dummy generation probability is obtained for the snapshot and time based models, varying capabilities of the adversary, and different system parameters. Finally, we verify the proposed results through simulations.https://ieeexplore.ieee.org/document/9576726/Citizens broadband radio service (CBRS)military radarsoperation frequency privacypreemptive resume priority queuespectrum access system (SAS)
spellingShingle Pranay Agarwal
Abhinav Kumar
Rie Shigetomi Yamaguchi
Preserving Operation Frequency Privacy of Incumbents in CBRS
IEEE Access
Citizens broadband radio service (CBRS)
military radars
operation frequency privacy
preemptive resume priority queue
spectrum access system (SAS)
title Preserving Operation Frequency Privacy of Incumbents in CBRS
title_full Preserving Operation Frequency Privacy of Incumbents in CBRS
title_fullStr Preserving Operation Frequency Privacy of Incumbents in CBRS
title_full_unstemmed Preserving Operation Frequency Privacy of Incumbents in CBRS
title_short Preserving Operation Frequency Privacy of Incumbents in CBRS
title_sort preserving operation frequency privacy of incumbents in cbrs
topic Citizens broadband radio service (CBRS)
military radars
operation frequency privacy
preemptive resume priority queue
spectrum access system (SAS)
url https://ieeexplore.ieee.org/document/9576726/
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AT abhinavkumar preservingoperationfrequencyprivacyofincumbentsincbrs
AT rieshigetomiyamaguchi preservingoperationfrequencyprivacyofincumbentsincbrs