An Investigation on Spectrum Mobility Mechanisms in Cognitive Network Communication
N. Gayathri, Anandakumar Haldorai, R. Sathya, S. Gowri · 2023
In our increasingly digitized environment, the demand for more effective spectrum usage is becoming more and more prominent. By permitting unauthorized individuals to take advantage of the spectrum in an adaptive way, cognitive radio (CR) is a prospective method to increase spectrum efficiency. Spectrum handover, which ensures that Secondary Users (SUs) can leave the available spectrum that is currently in use and identify a suitable target channel to continue the interrupted service, is a critical component of the development of Cognitive Radio Networks (CRN). A complete description and investigation of the current spectrum handoff techniques for CRN are discussed in this paper. Numerous research challenges and constraints are also studied in the development of effective spectrum handoff methods. Also, the comparative study on different spectrum handoff mechanisms is presented to discover the least number of reductions in performance during a spectrum handoff.