A stand–alone sensor for spectrum occupancy monitoring in dynamic spectrum access framework

Cerro, Gianni; Miele, Gianfranco

doi:10.1109/sas.2019.8706108

Cited by 6 publications

(2 citation statements)

References 9 publications

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“…The estimation depends on the computer simulation and, thus, performing the computer simulation; changing the situation involves large computational complexity. The spectrum sensor for TV white space is considered [41]. It achieves low computational complexity owing to the simple detection of CCI but cannot estimate the power of CCI.…”

Section: Related Workmentioning

confidence: 99%

Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa

Takyu

Kobayashi

Adachi

et al. 2022

Sensors

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In terms of low power consumption and long-range communication—low-power wide-area networks (LPWAN) are suitable for wireless sensor networks. Long-range (LoRa) wireless communication is one of the standards of LPWAN. LoRa shares common frequency spectrum bands with both multiple transmitters, which are the sensors in the LoRa system (and those in the other system). Therefore, co-channel interference (CCI) degrades the packet delivery rate. To avoid CCI, the CCI power and the occurrence probability of CCI in the target channel are estimated, then the sensor decides whether to use the channel and where the occurrence probability of CCI is defined as the channel occupancy ratio (COR). If a large signal power is obtained at the receiver, the received signal can be demodulated because of the capture effect. The desired signal power must also be estimated for the capture effect. In this study, we propose an estimation scheme based on chirp modulation of LoRa under spectrum sharing among other systems. The proposed scheme estimates the desired signal power, CCI power, and COR. From the computer simulation results, we clarify the advantages of the proposed scheme in terms of estimation accuracy and packet delivery rate.

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Section: Related Workmentioning

confidence: 99%

Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa

Takyu

Kobayashi

Adachi

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…Out of which Very High Frequency (VHF) and Ultra High Frequency (UHF) bands are the most favorable ones. These bands are traditionally used for different applications such as for TV broadcasting, as an outcome, empty channels or frequency in these traditional bands are often called TV White Spaces (TVWSs) [11]. Several international regulatory bodies have proposed solutions to utilize spectral opportunities in TVWSs.…”

Section: Introductionmentioning

confidence: 99%

Spectrum Occupancy Measurement of Cellular Spectrum and Smart Network Sharing in Pakistan

Mirani¹,

Memon²,

Hussain³

et al. 2020

IJACSA

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In wireless communication, the radio spectrum is a very rare and precious resource that has currently become a major problem to efficiently exploit the underutilized band of the static allocated licensed band. Recently, the cognitive radio (CR) has emerged as a promising technology to overcome the spectrum crisis, in which, the licensed band can be utilized by the unlicensed user until and unless it does not affect the transmission of the licensed band. In this paper, the spectrum occupancy of three bands i.e. GSM 900, 1800 and 2100 bands have been measured through spectrum analyzer in the indoor and outdoor environment. The measured results of all the three bands have been calculated through MATLAB against the power spectral density versus frequency plots. Results have shown that the majority of the licensed band is underutilized. Therefore, the CR can play a pivotal role to efficiently utilize the unused spectrum and to overcome the cellular wireless spectrum crisis in Pakistan. The second part of this paper deals with the emerging concept of network sharing among mobile operators and its impacts on cost. Network sharing become the standard among mobile operators worldwide and so in Pakistan. Capital (CAPEX) as well as operational (OPEX) expenditure and rapid advancement in technology encouraged all operators to go for sharing business models. In Pakistan, all four mobile operators Jazz, Telenor, Zong, and Ufone are actively adopting this model to maintain EBITDA (earnings before interest, taxes, depreciation, and amortization). Mainly there are two types of network sharing, Passive infrastructure sharing, and active resource sharing. Passive network sharing is widely used in Pakistan among operators.

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IEEE 802.15.22.3 Spectrum Characterization and Occupancy Sensing Application Testbed

Cerro

Miele

Hislop

et al. 2020

IEEE Instrum. Meas. Mag.

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A stand–alone sensor for spectrum occupancy monitoring in dynamic spectrum access framework

Cited by 6 publications

References 9 publications

Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa

Estimation Based on Chirp Modulation for Desired and Interference Power and Channel Occupancy Ratio in LoRa

Spectrum Occupancy Measurement of Cellular Spectrum and Smart Network Sharing in Pakistan

IEEE 802.15.22.3 Spectrum Characterization and Occupancy Sensing Application Testbed

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