On the spectrum sensing of gamma shadowed Hoyt fading channel with MRC reception

ABSTRACT

Spectrum sensing (SS) is the important function of cognitive radio and energy detection is the most popular technique used for SS. When the channel is composite (multipath/shadowed) fading, the detection of unused spectrum holes becomes difficult for the secondary users. In this paper, the analytical expressions of average probability of detection and the average area under the receiver operating characteristic over Hoyt/Gamma composite fading channel with maximum ratio combining reception are derived. In addition, the optimized threshold has been incorporated to overcome the problem of SS at low signal to noise ratio. The effect of diversity on the performance of energy detector is also studied. To validate the accuracy of the derived results, Monte Carlo simulations are incorporated.

KEYWORDS:

• Composite fading
• diversity
• AUC
• ROC
• energy detection

ORCID

Sandeep Kumar http://orcid.org/0000-0002-5750-6112

Additional information

Notes on contributors

Sandeep Kumar

Sandeep Kumar was born in New Delhi, India, in 1983. He received his B.Tech. in Electronics and Communication from Kurukshetra University, India in 2004 and M.E. in Electronics & Communication from Thapar University, Patiala, India in 2007. He is currently pursuing PhD from Delhi Technological University, India. In 2007, he joined Central Research Laboratory, Ghaziabad, Bharat Electronics Limited where he is currently working as Member (Research Staff). His research interest includes wireless channel modeling and cognitive radio networks.

Pappu Kumar Verma

Pappu Kumar Verma received B.Tech. in Electronics and Communication Engineering from UPTU, Lucknow, India in 2010, M. Tech. in Microwave and Optical Communication from Delhi Technological University (DTU), Delhi, India in 2014 and pursuing PhD from DTU, Delhi, India. He is working as a Lecturer in Electronics & Communication Engineering Department at National Institute of Technology (NIT), Hamirpur (HP), India. His research interest includes the wireless communications, cognitive radio networks and channel modeling.

Manpreet Kaur

Manpreet Kaur was born in Punjab, India in 1983. She received her B. Tech. in Electronics and Communication Engineering from PTU, Punjab, India in 2005 and M.E. in Electronics and Communication from Thapar University, Patiala, India in 2007. She is currently working as Member (Research Staff) at Central Research Laboratory, Ghaziabad, Bharat Electronics Limited. Her research interest includes the wireless channels and cognitive radios networks.

Priyanka Jain

Priyanka Jain received B.E. degree in Electronics & Telecommunication, M.Tech. in Microwave Engineering from Delhi University, and PhD from G.G.S. Indraprastha University, Delhi. She is Assistant Professor in Department of Electronics and Communication Engineering, DTU, Delhi. Her research interest includes signal processing, cognitive radio network and microwave engineering.

Sanjay Kumar Soni

Sanjay Kumar Soni received his B.E. in electronics engineering from M.M.M. Engineering College, Gorakhpur in 1997, M.Tech., a degree in Communication Engineering from IIT Kanpur in 2004, and PhD from IIT Kharagpur in 2011. Currently, he is an Associate Professor in ECE department, G.B. P. E. C., Uttrakhand. His research interest includes channel modeling and wireless channel propagation, cognitive radios and time-domain analysis of UWB signals.