Nagesh R.

Work place: VTU, Belgavi, India



Research Interests: Embedded System, Computer Networks


Nagesh. R. is currently working as Associate Professor Electronics and Communication Engineering Department at Government SKSJ Technological Institute, Bangalore. 
He is pursuing his Ph.D. (Engg.) from Visvesvaraya Technological University, Belgaum in the area of Cooperative Computer Networks. He obtained his Master’s Degree in VLSI and Embedded Systems from Visvesvaraya Technological University, Belgaum in 2007. He holds Bachelor’s degree in Electronics and Communication Engineering from RV College of Engineering, Bangalore in 2002. He has more than 16 years of experience in Teaching and Industry. He was with Wipro Technologies, and TATA Elxsi Ltd. as Senior Chip Design Engineer. His major interest areas of research include Cooperative Computer Networks, MANETS, Vehicular Networks and Embedded Systems. 

Author Articles
Cooperative MAC Protocol based on Best Data Rate (CMAC-DR)

By Nagesh R. M. N. Sree Rangaraju N. R. Kushar Gowda Vinayak Shekharappa Antin

DOI:, Pub. Date: 8 Jun. 2024

As wireless signals are broadcast in nature, which implies that, a broadcast communication purposive to a predetermined destination may be received by a non-intended intermediate station. Cooperative transference, which employ interposed stations to pass on the eavesdropped data to attain the contrast gains, has a substantial capability to revamp the channeling effectiveness in wireless systems. In this it is evident that having cooperation amid stations in a wireless systems can accomplish higher throughput with enhanced network lifetime. Proffered work bestows a model for  medium access layer called Cooperative MAC protocol based on optimal Data Rate (CMAC-DR). In the proffered work, stations with more data rate aid stations having lesser data rate in their communication by redirecting their congestion. In CMAC-DR model, utilizing the conveyance of eavesdropped information, potential helper stations with more data rate Send out Helper Ready To Send (HRTS), the stations with less data rate maintains a table, called Co-op table of potential helper stations, that can aid in its transmissions. During communication, the source station with low data rate chooses either transmitting by the way of a helper station, so that it lowers the end to end transference delay and increases the throughput or opt only direct transmission, if no potential helper is found or if CMAC-DR becomes an overhead. By analyzing varied simulated scenarios, CMAC-DR evaluates the elevation in the overall network lifetime, throughput and minimization of delay. The CMAC-DR protocol is unambiguous and in accordant with legacy 802.11 also when compared to this, we find improved performance in terms of delay throughput and network lifetime since data rate is considered as relay selection condition. 

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