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INTERNATIONAL JOURNAL OF CREATIVE RESEARCH THOUGHTS - IJCRT (IJCRT.ORG)
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ISSN Approved Journal No: 2320-2882 | Impact factor: 7.97 | ESTD Year: 2013
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Authors
Veeralakshmi s,Dr.C.Vennila
Downlaod Center
Keywords
cooperative spectrum sharing
Abstract
Secure wireless communications is very important to environmental and military concerns. This project investigates that the energy efficiency and secrecy performance of cognitive radio networks (CRNs), where primary and secondary users with different priorities of spectrum access can either interfere or cooperate with each other. Focusing on several key aspects that may have potential impacts on secure underlay CRNs, including the transmission power, the number of interfering users, and the designed interference resistance coefficient. Based on analytical results, propose a cooperative spectrum sharing paradigm to improve both the secrecy throughput and the energy efficiency of primary users. The main idea is that primary users allow secondary users to simultaneously access the licensed spectrum and in return, the secondary transmitter acts as both a relay for primary transmissions and a friendly jammer against eavesdropping, in case the primary transmission fails. fails. Both theoretical and numerical results reveal that: (i) When the interference from secondary transmitters is small, there is an optimal transmission power that maximizes the secrecy throughput for primary users compared to CRNs without the security issue; (ii) When the interference from secondary transmitters is large, the secrecy throughput increases with the transmission power for primary users ; (iii) The transmission power that maximizes the energy efficiency is smaller than that maximizes the secrecy throughput for primary users; (iv) The number of interfering users has a slight impact on the secrecy throughput and the energy efficiency of primary users due to the secondary power control; (v) The proposed cooperative paradigm is an efficient approach to boost both the secrecy throughput and the energy efficiency of primary users compared with the traditional non-cooperative spectrum sharing, and provides an alternative method to compensate for the interference caused by secondary users.
IJCRT's Publication Details
Unique Identification Number - IJCRT2009323
Paper ID - 198786
Author type - Indian Author
Page Number(s) - 2563-2572
Pubished in - Volume 8 | Issue 9 | September 2020
DOI (Digital Object Identifier) -
No Of Downloads - 1233
Author Country - 614616, india, aranthangi, aranthangi, india, Science & Technology
Publisher Name - IJPUBLICATION | www.ijcrt.org | ISSN : 2320-2882
E-ISSN Number - 2320-2882
Published Paper PDF : - http://www.ijcrt.org/papers/IJCRT2009323
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Veeralakshmi s,Dr.C.Vennila , "PERFORMANCE IMPROVEMENT IN COGNITIVE RADIO NETWORKS", International Journal of Creative Research Thoughts (IJCRT), ISSN:2320-2882, Volume.8, Issue 9, pp.2563-2572, September 2020, Available at :http://www.ijcrt.org/papers/IJCRT2009323.pdf
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