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M. K. Kaushik
BITS Pilani Hyderabad Campus
Computer Science & IT Electrical & Electronics Engineering

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Sensing and Sharing Schemes for Spectral Efficiency of Cognitive Radios M. K. Kaushik; Y. Yoganandam; SK Sahoo
International Journal of Electrical and Computer Engineering (IJECE) Vol 8, No 5: October 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.945 KB) | DOI: 10.11591/ijece.v8i5.pp2934-2941

Abstract

Increase in data traffic, number of users and their requirements laid to a necessity of more bandwidth. Cognitive radio is one of the emerging technology which addresses the spectrum scarcity issue. In this work we study the advantage of having collaboration between cognitive enabled small cell network and primary macrocell. Different from the existing works at spectrum sensing stage we are applying enhanced spectrum sensing to avoid probability of false alarms and missed detections which has impact on spectral efficiency. Later power control optimization for secondary users known as Hybrid spectrum sharing is used for further improvement of spectral efficiency. Furthermore, the failed packets of Primary users are taken care by high ranked relays which in turn decreases the average Primary user packet delay by 20% when compared between assisted Secondary user method and non-assisted Secondary user method. 
Co-Authors SK Sahoo Y. Yoganandam