Intelligent Process of Spectrum Handoff in Cognitive Radio Network

Authors

  • Emmanuel Alozie Department of Telecommunication Science, University of Ilorin, Nigeria.
  • Faruk Nasir Department of Physics, Sule Lamido University, Kafin Hausa, Nigeria. Directorate of ICT, SLU
  • Abdulkarim Oloyede Department of Telecommunication Science, University of Ilorin, Nigeria
  • Olugbenga Sowande Department of Telecommunication Science, University of Ilorin, Nigeria
  • Agbotiname Imoize Department of Electrical and Electronics Engineering, University of Lagos, Nigeria
  • Abubakar Abdulkarim Department of Electrical and Electronics Engineering, Ahmadu Bello University Zaria, Nigeria
  • Salisu Garba Department of Computer Science Sule Lamido University, KH, Nigeria

Keywords:

Cognitive Radio Network, Spectrum Handoff, Fuzzy Logic, Handoff Delay

Abstract

Spectrum handoff is a crucial function of Cognitive Radio (CR) which is the change of operating frequency. The main problem in spectrum handoff is the time taken in the searching, selection, and switching to a new available channel which can cause a significant amount of delay during spectrum handoff. This research aims to minimize the delay that occurs during spectrum handoff. A Proactive Fuzzy-Based Backup Channel Selection Scheme (PFBBCSS) was proposed where the Secondary User (SU) gathers backup channels in advance before the return of the Primary User (PU), then fuzzy logic would be used for the selection of the best channel out of the available backup channels. The proposed scheme was simulated and evaluated using the MATLAB Simulation tool and the result was compared with a Pure Proactive Spectrum Handoff Scheme. Results showed, in terms of throughput and efficient time utilization under a varying number of licensed channels, that the proposed scheme performed better, making it a good mechanism to be used for handoff decisions by the Secondary User (SU).

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Published

2022-07-20

Issue

Vol. 4 No. 1&2 (2022): Special Issue on Computing & Advances in Information Technology

Section

Articles