Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 731-739 |
| Number of pages | 9 |
| Journal | IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING |
| Volume | 3 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Dec 2017 |
Keywords
- Cognitive radio networks
- service time
- performance evaluation and modeling
Cite this
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RF-Spectrum Opportunities for Cognitive Radio Networks Operating Over GSM Channels. / Luis, Miguel; Oliveira, Rodolfo; Dinis, Rui; Bernardo, Luis.
In: IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING, Vol. 3, No. 4, 12.2017, p. 731-739.Research output: Contribution to journal › Article
TY - JOUR
T1 - RF-Spectrum Opportunities for Cognitive Radio Networks Operating Over GSM Channels
AU - Luis, Miguel
AU - Oliveira, Rodolfo
AU - Dinis, Rui
AU - Bernardo, Luis
N1 - Sem PDF. Foundation for Science and Technology of the Portuguese Ministry of Education and Science (UID/EEA/50008/2013)
PY - 2017/12
Y1 - 2017/12
N2 - In this paper, we characterize the radio frequency spectrum opportunities available in a common global system for mobile communications (GSM) channel to support the operation of a cognitive radio network (CRN). In a first step, we describe the technical details involved to sample the channel using a software defined radio device. Adopting a simple energy-based detector, we identify the two energy regions where the GSM system is active or inactive and evaluate the spectrum sensing accuracy. Based on the output of the detector, we show that the distribution of the durations of busy and idle periods are approximated by geometric distributions. Finally, we validate a theoretical model for the distribution of the service time. The validation results indicate that the service time can be successfully represented by a discrete generalized Pareto distribution, which is confirmed by the Kolmogorov-Smirnov test. Because the throughput of the CRN is represented by the inverse of the service time, the proposed analysis provides an upper bound for the networks' throughput, indicating the maximum throughput that can be attained when a single secondary user transmits over a GSM cellular channel. The results presented in this paper are validated with real data, confirming the accuracy of the proposed service time model.
AB - In this paper, we characterize the radio frequency spectrum opportunities available in a common global system for mobile communications (GSM) channel to support the operation of a cognitive radio network (CRN). In a first step, we describe the technical details involved to sample the channel using a software defined radio device. Adopting a simple energy-based detector, we identify the two energy regions where the GSM system is active or inactive and evaluate the spectrum sensing accuracy. Based on the output of the detector, we show that the distribution of the durations of busy and idle periods are approximated by geometric distributions. Finally, we validate a theoretical model for the distribution of the service time. The validation results indicate that the service time can be successfully represented by a discrete generalized Pareto distribution, which is confirmed by the Kolmogorov-Smirnov test. Because the throughput of the CRN is represented by the inverse of the service time, the proposed analysis provides an upper bound for the networks' throughput, indicating the maximum throughput that can be attained when a single secondary user transmits over a GSM cellular channel. The results presented in this paper are validated with real data, confirming the accuracy of the proposed service time model.
KW - Cognitive radio networks
KW - service time
KW - performance evaluation and modeling
U2 - 10.1109/TCCN.2017.2771558
DO - 10.1109/TCCN.2017.2771558
M3 - Article
VL - 3
SP - 731
EP - 739
JO - IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
JF - IEEE TRANSACTIONS ON COGNITIVE COMMUNICATIONS AND NETWORKING
SN - 2332-7731
IS - 4
ER -