2017
DOI: 10.1109/tccn.2017.2733533
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Database-Assisted Distributed and Cloud-Based Access Methods for Unlicensed and Radar Bands

Abstract: This paper focuses on the design of methods which enable unlicensed devices to use the frequency spectrum already allocated to rotating radar systems without causing interference to those radars. We first present a database-assisted spectrum sharing/co-existence mechanism for radar spectrum bands. This mechanism takes into account the real spectrum usage behavior of different radars, and is also implemented by prototyping a real-time rotating radar beam emulator, a radar spectrum database using MySQL software,… Show more

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Cited by 4 publications
(4 citation statements)
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“…The detailed implementation of an FPGA-based spectrum monitoring ESC sensor for shared access with rotating radars, which is highspeed and low-cost compared to other ESCs, is proposed in [16]. Upon receiving the alert of interference exceeding the limit from the ESC sensor implemented at the radar, the spectrum manager in the REM repository updates the sharing rules based on the utilized spectrum sharing model [7]. It also introduced two different database-assisted spectrum sharing mechanisms such as a distributed unified channel access (UCA) method and a cloud-based UCA method.…”
Section: Related Literaturementioning
confidence: 99%
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“…The detailed implementation of an FPGA-based spectrum monitoring ESC sensor for shared access with rotating radars, which is highspeed and low-cost compared to other ESCs, is proposed in [16]. Upon receiving the alert of interference exceeding the limit from the ESC sensor implemented at the radar, the spectrum manager in the REM repository updates the sharing rules based on the utilized spectrum sharing model [7]. It also introduced two different database-assisted spectrum sharing mechanisms such as a distributed unified channel access (UCA) method and a cloud-based UCA method.…”
Section: Related Literaturementioning
confidence: 99%
“…Nevertheless, DFS and DFS-T require sensing the signal and tracking the rotation of a weather radar which is found out to be with quasi-VOLUME , 2021 periodic rotation in [6]. Hence, a recent study [7] recommended to use of advanced cloud-based technologies such as a Radio Environment Map (REM) repository with an online database to receive the interference information from sensors and a spectrum manager to execute the dynamic temporal spectrum sharing. Most of the frameworks currently used for radar protection depend mainly on the spectrum monitoring sensors called environmental sensing capability (ESC).…”
Section: Introductionmentioning
confidence: 99%
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“…where B i and SINR i denote the bandwidth and the SINR of α i on channel k respectively, Âk i denotes the CU demand of α i on channel k (which is generated by the applications running on the devices connected to α i ), and A k i is the CU obtained by α i allocated to channel k. A k i can be calculated as [28],…”
Section: A Proposed Metric Scoresmentioning
confidence: 99%