M.Yamuna Devi

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S Aishwarya

Universität Hamburg

R. Hemalatha

St. Joseph's Institute of Technology

J. Vijitha Ananthi

Karunya University

Cooperative Institutions

Universität Hamburg

Hamburg University of Technology

Tamil Nadu Dr. M.G.R. Medical University

Karnataka Institute of Medical Sciences

Velammal Medical College Hospital and Research Institute

Sri Eshwar College of Engineering

Amrita Vishwa Vidyapeetham

Vellore Institute of Technology University

Acharya Nagarjuna University

Avinashilingam University

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IMPROVING QOS PERFORMANCE IN THEGATEWAY NODE

International Journal of Advanced Research in Electrical Electronics and Instrumentation Engineering (2013)

R. Hemalatha M.Yamuna Devi S Aishwarya J. Vijitha Ananthi

Various gateway selection schemes have been proposed to select gateway node based on single QOS and multiple non-Qos path parameters. The single QOS parameter includes path availability period, link capacity and end to end delay. Similarly multiple non-Qos parameters consist of gateway node speed, residual energy and number of hop for MANET. The entire above mentioned scheme will improve only a single network performance such as network throughput, packet delivery ratio, end to end delay or packet drop ratio but none of these schemes improves the overall performance. So to improve the overall network performance it is necessary to select a gateway with stable path. So a gateway selection scheme has been proposed that has all QOS and multiple non-QoS parameters present in a single gateway node connecting two network. Toenhance the gateway node, it is connected to more networks that are two or three.

Gateway address

Packet loss

Network Performance

End-to-end delay

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DESIGN AND ANALYSIS OF IMPROVINGNETWORK CAPACITY WITHCOOPERATIVE COMMUNICATIONS

International Journal of Advanced Research in Electrical Electronics and Instrumentation Engineering (2013)

S Aishwarya R. Hemalatha M.Yamuna Devi J. Vijitha Ananthi

Several transmission methods are available to improve the network capacity in MANET. Most of the existing works on wireless networks are point–point, Cooperative transmission. In the existing Cooperative transmission, the source node sends packets to destination node through cooperative node but soon after the source node loses its whole energy and stops transmitting the packets. So, now we are introducing the new transmission technique which overcomes the above mentioned problem. In this technique, we are converting the cooperative node as selfish node. The selfish node stops forwarding the received packets to the destination and find another path to reach destination directly. With this method the capacity of network is increased when compared to Cooperative Communication.

Packet forwarding

Cooperative Diversity

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