Analysis of mobility impact on interference in cognitive radio networks

Ali Riza Ekti, Serhan Yarkan, Khalid Qaraqe, Erchin Serpedin, Octavia A. Dobre

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Cognitive radio (CR) technology seems to be a promising candidate for solving the radio frequency (RF) spectrum occupancy problem. CRs strive to utilize the white holes in the RF spectrum in an opportunistic manner. Because interference is an inherent and a very critical design parameter for all sorts of wireless communication systems, many of the recently emerging wireless technologies prefer smaller size coverage with reduced transmit power in order to decrease interference. Prominent examples of short-range communication systems trying to achieve low interference power levels are CR relays in CR networks and femtocells in next generation wireless networks (NGWNs). It is clear that a comprehensive interference model including mobility is essential especially in elaborating the performance of such short-range communication scenarios. Therefore, in this study, a physical layer interference model in a mobile radio communication environment is investigated by taking into account all of the basic propagation mechanisms such as large- and small-scale fading under a generic single primary user (PU) and single secondary user (SU) scenario. Both one-dimensional (1D) and two-dimensional (2D) random walk models are incorporated into the physical layer signal model. The analysis and corresponding numerical results are given along with the relevant discussions.

Original languageEnglish
Pages (from-to)212-222
Number of pages11
JournalPhysical Communication
Volume9
DOIs
Publication statusPublished - 2013

Fingerprint

Radio interference
Cognitive radio
interference
Communication systems
telecommunication
Femtocell
radio frequencies
Radio communication
radio communication
relay
wireless communication
Wireless networks
fading
random walk
emerging
communication
Communication
propagation

Keywords

  • Fading
  • Femtocell
  • Interference
  • Mobility
  • Shadowing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Analysis of mobility impact on interference in cognitive radio networks. / Ekti, Ali Riza; Yarkan, Serhan; Qaraqe, Khalid; Serpedin, Erchin; Dobre, Octavia A.

In: Physical Communication, Vol. 9, 2013, p. 212-222.

Research output: Contribution to journalArticle

Ekti, Ali Riza ; Yarkan, Serhan ; Qaraqe, Khalid ; Serpedin, Erchin ; Dobre, Octavia A. / Analysis of mobility impact on interference in cognitive radio networks. In: Physical Communication. 2013 ; Vol. 9. pp. 212-222.
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