Proactive Spectrum Handoff Algorithm Based on Uncertain Sensing
CAO Xingbing
JIAO Zhongshuai
Abstract：In the actual cognitive radio network, there exist the inevitable non-ideal spectrum detection such as false alarm and missed detection which may lead to the inaccurate spectrum handoff and cause more uncertain problems.Based on the hidden Markov model, this paper considers the non-ideal spectrum detection and utilizes the false alarm and missed probabilities to modify the sensory information and to improve the prediction accuracy.Furthermore, an improved algorithm as well as the corresponding handoff strategy are proposed to calculate the channel remaining idle time.The simulation results show that the proposed algorithm has a better performance under different false alarm probabilities.
Keywords：cognitive radiospectrum handoffnon-ideal spectrum detectionremaining idle time
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 616-619,649 )