Enhancement of QOS for Multi-user Environment in Cognitive Radio Network
I. Chandra1, D.Subitha2, K Sarath Babu3, C.Navaneethan4, S.Meenatchi5, P.Thanapal6

1I. Chandra*, Associate professor, of Electronics and Communications, Saveetha School of Engineering, Chennai, India.
2D.Subitha, Assistant professor, of Electronics and Communications, Saveetha School of Engineering, Chennai, India.
3K Sarath Babu, UG scholar Department of Electronics and Communications, Saveetha School of Engineering, Chennai, India.
4C.Navaneethan, Associate professor, School of Information Technology and Engineering, VIT University, Vellore, Tamil Nadu, India.
5S.Meenatchi, Associate professor , School of Information Technology and Engineering, VIT University, Vellore, Tamil Nadu, India.
6P.Thanapal, Associate professor , School of Information Technology and Engineering, VIT University, Vellore, Tamil Nadu, India.
Manuscript received on December 15, 2019. | Revised Manuscript received on December 20, 2019. | Manuscript published on January 10, 2020. | PP: 2506-2510 | Volume-9 Issue-3, January 2020. | Retrieval Number: L30361081219/2020©BEIESP | DOI: 10.35940/ijitee.L3036.019320
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Abstract: CRT(Cognitive radio technology) enhances the utilization of available better spectrum in the channel. So to provide better Quality of Service for the user in this paper the Localizability aided localization(LAL) and Water filling Methodologies are proposed. This paper analyzes the routing protocols like AOMDV(Ad-hoc On-demand Multi-path Distance Vector routing), DSR (Dynamic Source Routing) and AODV (Ad-hoc On-Demand Distance Vector). Considering the AODV as the existing routing protocol, this paper proposed with AOMDV and DSR routing algorithms for Localizability aided localization(LAL) and Water filling methodologies respectively. Current work on improving Quality of Service, the different routing protocols are proposed in this paper. The main factors analyzing in this paper are throughput, PDR( packet delivery ratio) and Delay. The simulation results will confirm the accuracy of the proposed techniques. 
Keywords: Protocol, Network, Throughput, Delay, Routing, Localization, Node
Scope of the Article:  Wireless Mesh Networks and Protocols