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Throughput Improvement Of Cognitive Radio Network Using Orthogonal Frequency Division Multiplexing

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Abstract:

This paper looks ahead at the future of wireless communications systems that can combine their resources and capabilities in order to enhance their overall ability to collect and convey information. Cognitive network teamwork has significant potential in the development of new public-safety, entertainment and military applications. Specifically, descriptions of the principles of formation, coordination and management of an effective cognitive network , in this paper, investigation is done on the transmission in cognitive radio network using orthogonal frequency division multiplexing (OFDM). The relevant communication parameters are optimized in dynamic wireless channel environment. Firstly, variable representation of the transmission parameters is done that can be controlled by the system, several objective function in the different layers must also be determined to define how the cognitive radio should operate, then implementation of block turbo code modulation in orthogonal frequency division multiplexing to improve throughput of cognitive radio network is done and simulate on cognitive radio cognitive network (CRCN) simulator .

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