Volume 22, Issue 2, April 2016, Pages 312–317
M. Anto Bennet1, J. Jelcin Renis2, B.S. Jaya Vignesh3, S. Jaya prakash4, B. Aswin5, and R. Kaushik Krishna6
1 Professor, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
2 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
3 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
4 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
5 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
6 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Spectrum Overcrowding continues to present a fundamental challenge for both military and commercial communications as earlier concerns over spectrum congestion and inefficient usage are manifest with 4G system emergence. Interest in Cognitive radio (CR) remains strong as the communication community strives to solve the spectrum congestion problem. In conventional CR Implementation, interference to primary users is minimized using either overlay or underlay waveforms.The overlay waveform that exploit unused spectrum holes and the underlay waveforms that spread their power spectrum density over an ultra-wide bandwidth. The proposed hybrid overlay underlay waveform that exploits both unused and underused waveform which effectively utilize the spectrum and improve spectrum efficiency.
Author Keywords: Cognitive Radio Overlay, Orthogonal Frequency Division Muliplexing (OFDM-BPSK).
M. Anto Bennet1, J. Jelcin Renis2, B.S. Jaya Vignesh3, S. Jaya prakash4, B. Aswin5, and R. Kaushik Krishna6
1 Professor, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
2 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
3 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
4 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
5 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
6 UG Student, Department of Electronics and Communication Engineering, VELTECH, Chennai-600062, India
Original language: English
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Spectrum Overcrowding continues to present a fundamental challenge for both military and commercial communications as earlier concerns over spectrum congestion and inefficient usage are manifest with 4G system emergence. Interest in Cognitive radio (CR) remains strong as the communication community strives to solve the spectrum congestion problem. In conventional CR Implementation, interference to primary users is minimized using either overlay or underlay waveforms.The overlay waveform that exploit unused spectrum holes and the underlay waveforms that spread their power spectrum density over an ultra-wide bandwidth. The proposed hybrid overlay underlay waveform that exploits both unused and underused waveform which effectively utilize the spectrum and improve spectrum efficiency.
Author Keywords: Cognitive Radio Overlay, Orthogonal Frequency Division Muliplexing (OFDM-BPSK).
How to Cite this Article
M. Anto Bennet, J. Jelcin Renis, B.S. Jaya Vignesh, S. Jaya prakash, B. Aswin, and R. Kaushik Krishna, “Performance & analysis of hybrid overlay underlay Cognitive Radio waveform in fading Channel,” International Journal of Innovation and Scientific Research, vol. 22, no. 2, pp. 312–317, April 2016.
