Research Article
Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios
@INPROCEEDINGS{10.4108/icst.crowncom.2012.248462, author={Pedro Smith Coutinho and Marcel William Rocha da Silva and Jos\^{e} Ferreira de Rezende}, title={Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios}, proceedings={7th International Conference on Cognitive Radio Oriented Wireless Networks}, publisher={IEEE}, proceedings_a={CROWNCOM}, year={2012}, month={7}, keywords={cognitive radio spectrum handoff channel selection spectrum sensing}, doi={10.4108/icst.crowncom.2012.248462} }- Pedro Smith Coutinho
Marcel William Rocha da Silva
José Ferreira de Rezende
Year: 2012
Detection Error Aware Spectrum Handoff Mechanism for Cognitive Radios
CROWNCOM
IEEE
DOI: 10.4108/icst.crowncom.2012.248462
Abstract
Spectrum handoff is a key mechanism for proper and efficient operation of cognitive radios. A handoff occurs when the current operating channel must be freed by secondary users due to the arrival of a primary user. This mechanism is responsible for searching for a new idle licensed channel for secondary use, a task known as channel selection. The order in which the channels are sensed during the handoff has a great impact on performance. This paper proposes a new spectrum handoff scheme that considers the existence of errors in primary user detection to achieve a better channel ordering in terms of spectrum utilization efficiency and primary user interference. Simulation results show that the proposed mechanism outperforms other mechanisms from the literature.