Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/10162
Title: Wireless networks system for secondary user based on cognitive radio technology
Researcher: Singh, Santosh Kumar
Guide(s): Roy, Krishna Chandra
Keywords: Information Technology
Wireless Networks System
Cognitive Radio Technology
Upload Date: 30-Jul-2013
University: Suresh Gyan Vihar University
Completed Date: 2011
Abstract: This thesis explores genetics algorithm and PSO optimization techniques used by cognitive radios to make operating parameter decisions. Cognitive radios take advantage of intelligent control schemes by using sensed information to determine the optimal set of transmission parameters for a given situation. This thesis has chosen to explore and compare three control methods. A biologically inspired genetic algorithm (Base-10 GA), a Particle Swarm Optimizations (PSO) and hybrid of Base-10 GA and PSO are proposed, analyzed and tested using simulations. This work defines a common set of six parameters used by cognitive radios, and develops a set of fitness functions that include the relationships between a small set of these input and output parameters. Four key communication objectives are also defined and used in combination with the fitness functions to direct the cognitive radio to a solution. It is observed, through simulations, that several trade offs exist between both the accuracy and speed of the final decision and the size of the parameter sets used to determine the decision. This thesis also explores the Spectrum mobility by use of DNA-inspired algorithm and security aspects of cognitive radio, which is most challenging issue in research of cognitive radio paradigm. DNA-inspired algorithm deals with a sequence alignment of two DNA sequences that realized the goal given by Hykins. For the security in cognitive radio, a Fingerprint-based Defense against Primary User Emulation Attacks has been explored using SIMULINK modal.
Pagination: xi, 138p.
URI: http://hdl.handle.net/10603/10162
Appears in Departments:Department of Information Technology

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01_title.pdfAttached File37.62 kBAdobe PDFView/Open
02_declaration.pdf309.22 kBAdobe PDFView/Open
03_certificate.pdf497.08 kBAdobe PDFView/Open
04_acknowledgements.pdf8.64 kBAdobe PDFView/Open
05_contents.pdf16.91 kBAdobe PDFView/Open
06_list of figures.pdf17.4 kBAdobe PDFView/Open
07_list of tables.pdf11.69 kBAdobe PDFView/Open
08_list of abbreviations.pdf14.98 kBAdobe PDFView/Open
09_abstract.pdf12.31 kBAdobe PDFView/Open
10_chapter 1.pdf160.24 kBAdobe PDFView/Open
11_chapter 2.pdf418.17 kBAdobe PDFView/Open
12_chapter 3.pdf233.44 kBAdobe PDFView/Open
13_chapter 4.pdf192.4 kBAdobe PDFView/Open
14_chapter 5.pdf552.23 kBAdobe PDFView/Open
15_chapter 6.pdf868.13 kBAdobe PDFView/Open
16_chapter 7.pdf26.19 kBAdobe PDFView/Open
17_bibliography.pdf43.91 kBAdobe PDFView/Open


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