Return to search

Random matrix theory based spectrum sensing for cognitive radio networks

No / Dynamic Spectrum Access (DSA) for secondary usage of underutilized radio spectrum is currently of great interest for radio regulatory authorities and for cellular network operators. However, the co-existence of multiple devices operating in the same bands, such as wireless microphones which also operate in TV bands, poses a challenge to DSA. Efficient and proactive spectrum sensing could prevent harmful interference between collocated devices, but existing blind spectrum sensing schemes such as energy detection and schemes based on Random Matrix Theory (RMT) have performance limitations. We propose a new blind spectrum sensing scheme for cognitive radio. The proposed scheme uses a new formula for the estimation of noise variance. The scheme has been evaluated through extensive simulations on wireless microphone signals and shows higher performance as compared to energy detection and RMT-based sensing schemes such as MME and EME. It also shows higher performance in terms of probability of detection (Pd).

Identiferoai:union.ndltd.org:BRADFORD/oai:bradscholars.brad.ac.uk:10454/11133
Date05 November 2015
CreatorsAhmed, A., Hu, Yim Fun, Noras, James M., Pillai, Prashant, Abd-Alhameed, Raed, Smith, A.
Source SetsBradford Scholars
LanguageEnglish
Detected LanguageEnglish
TypeConference paper, No full-text in the repository

Page generated in 0.0017 seconds