Performance evaluation of energy based spectrum sensing in multipath fading channel for cognitive radio system

Author

Kishore, Rajalekshmi ; Ramesha, C.K. ; Sharma, Vishal ; Joshi, Rajan

Author_Institution

Dept. of Electr. Electron. & Instrum. Eng., BITS Pilani, Zuarinagar, India

fYear

2014

fDate

10-12 Oct. 2014

Firstpage

1

Lastpage

6

Abstract

Cognitive radio will drive the future of wireless/radio communication by efficient utilization of underutilized spectrum (vacant space). Spectrum sensing and primary user detection is the main challenge in cognitive radio systems. Energy based sensing is a common spectrum sensing method for cognitive radio since the information about the licensed user signal are not required for the detection process. In this paper, the performances of the energy detection technique are analyzed over Gaussian Noise Channel and different fading channels such as Rayleigh and Rician Channel based on Receiver Operating Characteristics (ROC) and probability of detection (Pd) versus Signal to Noise Ratio (SNR) curves through simulation using MATLAB. The analysis is validated with theoretical results.

Keywords

Gaussian noise; Rayleigh channels; Rician channels; cognitive radio; multipath channels; radio spectrum management; signal detection; Gaussian noise channel; MATLAB; ROC; Rayleigh channel; Rician channel; cognitive radio system; energy based sensing; energy based spectrum sensing; energy detection; licensed user signal; multipath fading channel; performance evaluation; primary user detection; receiver operating characteristics; underutilized spectrum; vacant space; wireless-radio communication; Detectors; Probability; Rayleigh channels; Rician channels; Signal to noise ratio; AWGN channel; Cognitive Radio; Energy Detector; Primary User; Receiver Operating Characteristics; Spectrum Scarcity; Spectrum Sensing; Vacant Space; fading channel;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication, Signal Processing and Networking (NCCSN), 2014 National Conference on

Conference_Location

Palakkad

Type

conf

DOI

10.1109/NCCSN.2014.7001153

Filename

7001153