Spectrum availability model of secondary users in cognitive radio networks

Nariman Rahimian; Costas N. Georghiades; Hasari Celebi; Khalid A. Qaraqe

doi:10.1109/IWCMC.2012.6314231

Spectrum availability model of secondary users in cognitive radio networks

Nariman Rahimian^*
, Costas N. Georghiades
, Hasari Celebi
, Khalid A. Qaraqe

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

Cognitive Radio systems are a promising solution to the spectrum scarcity problem, but precise modeling of spectrum utilization is vital to the analysis and design of such systems. In this paper, we mathematically derive the Probability Mass Function (PMF) of the fraction of available subcarriers for the secondary users in an OFDMA based cognitive radio system for different requesting distributions. The PMF of the total number of requested subcarriers from all primary users is derived and the effect of the requesting distribution on the asymptotic spectrum availability for secondary users is studied. It is shown that if a requesting distribution is undesired, providing more subcarriers will not increase the spectrum availability for the secondary network.

Original language	English
Title of host publication	IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference
Pages	360-365
Number of pages	6
DOIs	https://doi.org/10.1109/IWCMC.2012.6314231
Publication status	Published - 2012
Externally published	Yes
Event	8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012 - Limassol, Cyprus Duration: 27 Aug 2012 → 31 Aug 2012

Publication series

Name	IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference

Conference

Conference	8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012
Country/Territory	Cyprus
City	Limassol
Period	27/08/12 → 31/08/12

Keywords

Cognitive radio
OFDMA
dynamic spectrum access
spectrum availability

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10.1109/IWCMC.2012.6314231

Cite this

Rahimian, N., Georghiades, C. N., Celebi, H., & Qaraqe, K. A. (2012). Spectrum availability model of secondary users in cognitive radio networks. In IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference (pp. 360-365). Article 6314231 (IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference). https://doi.org/10.1109/IWCMC.2012.6314231

@inproceedings{45aa0e219b674483ad18631f2b5fec56,

title = "Spectrum availability model of secondary users in cognitive radio networks",

abstract = "Cognitive Radio systems are a promising solution to the spectrum scarcity problem, but precise modeling of spectrum utilization is vital to the analysis and design of such systems. In this paper, we mathematically derive the Probability Mass Function (PMF) of the fraction of available subcarriers for the secondary users in an OFDMA based cognitive radio system for different requesting distributions. The PMF of the total number of requested subcarriers from all primary users is derived and the effect of the requesting distribution on the asymptotic spectrum availability for secondary users is studied. It is shown that if a requesting distribution is undesired, providing more subcarriers will not increase the spectrum availability for the secondary network.",

keywords = "Cognitive radio, OFDMA, dynamic spectrum access, spectrum availability",

author = "Nariman Rahimian and Georghiades, \{Costas N.\} and Hasari Celebi and Qaraqe, \{Khalid A.\}",

year = "2012",

doi = "10.1109/IWCMC.2012.6314231",

language = "English",

isbn = "9781457713781",

series = "IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference",

pages = "360--365",

booktitle = "IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference",

note = "8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012 ; Conference date: 27-08-2012 Through 31-08-2012",

}

Rahimian, N, Georghiades, CN, Celebi, H & Qaraqe, KA 2012, Spectrum availability model of secondary users in cognitive radio networks. in IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference., 6314231, IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference, pp. 360-365, 8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012, Limassol, Cyprus, 27/08/12. https://doi.org/10.1109/IWCMC.2012.6314231

Spectrum availability model of secondary users in cognitive radio networks. / Rahimian, Nariman; Georghiades, Costas N.; Celebi, Hasari et al.
IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference. 2012. p. 360-365 6314231 (IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Spectrum availability model of secondary users in cognitive radio networks

AU - Rahimian, Nariman

AU - Georghiades, Costas N.

AU - Celebi, Hasari

AU - Qaraqe, Khalid A.

PY - 2012

Y1 - 2012

N2 - Cognitive Radio systems are a promising solution to the spectrum scarcity problem, but precise modeling of spectrum utilization is vital to the analysis and design of such systems. In this paper, we mathematically derive the Probability Mass Function (PMF) of the fraction of available subcarriers for the secondary users in an OFDMA based cognitive radio system for different requesting distributions. The PMF of the total number of requested subcarriers from all primary users is derived and the effect of the requesting distribution on the asymptotic spectrum availability for secondary users is studied. It is shown that if a requesting distribution is undesired, providing more subcarriers will not increase the spectrum availability for the secondary network.

AB - Cognitive Radio systems are a promising solution to the spectrum scarcity problem, but precise modeling of spectrum utilization is vital to the analysis and design of such systems. In this paper, we mathematically derive the Probability Mass Function (PMF) of the fraction of available subcarriers for the secondary users in an OFDMA based cognitive radio system for different requesting distributions. The PMF of the total number of requested subcarriers from all primary users is derived and the effect of the requesting distribution on the asymptotic spectrum availability for secondary users is studied. It is shown that if a requesting distribution is undesired, providing more subcarriers will not increase the spectrum availability for the secondary network.

KW - Cognitive radio

KW - OFDMA

KW - dynamic spectrum access

KW - spectrum availability

UR - https://www.scopus.com/pages/publications/84869187260

U2 - 10.1109/IWCMC.2012.6314231

DO - 10.1109/IWCMC.2012.6314231

M3 - Conference contribution

AN - SCOPUS:84869187260

SN - 9781457713781

T3 - IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference

SP - 360

EP - 365

BT - IWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference

T2 - 8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012

Y2 - 27 August 2012 through 31 August 2012

ER -

Spectrum availability model of secondary users in cognitive radio networks

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Keywords

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