Computer Science And Technology - Research Publications

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    Performance analysis of AODV based congestion control protocols in MANET
    (Institute of Electrical and Electronics Engineers Inc., 2015) Bhatia, B.
    MANETs are highly deployable, dynamic and self-configurable because of which routing is an extremely challenging task in them. AODV routing protocol used for routing purposes in MANETs is an on-demand routing protocol which do not support congestion control as it is not congestion adaptive. This paper discusses two congestion control protocols based on AODV in MANETs. Many authors have proposed protocols based on AODV which are congestion adaptive and deal with the congestion over the network. AODV-I and EDAODV are two congestion control protocols which deals with the congestion reactively. These two protocols are simulated on NS2 by varying the size of data packets. The analysis of these protocols is done with AODV by calculating the values for four performance metrics, namely, throughput, packet delivery ratio (PDR), routing overhead and end-to-end delay. ? 2015 IEEE.
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    Mobility model based performance analysis of DSDV mobile ad hoc routing protocol
    (Institute of Electrical and Electronics Engineers Inc., 2014) Kaur, Amandeep
    Wireless Networking has become the phrase du jour these days because of an attractive number of benefits it offers to the end users, by enabling them to access a wide pool of resources and information irrespective of the physical location of the devices used by them across the globe. Mobile ad hoc networks are a kind of infrastructure less wireless networks in which all the nodes act as peers and share information as well as resources. Mobile ad hoc networks are an open area of research since these have not been deployed widely yet. Every research in the field of networking focuses on the efficient, accurate, reliable, secure and immediate delivery of data. Therefore, the routing of data across the mobile ad hoc network is a major concern of researchers all over the world. Several routing protocols have been proposed and implemented to send data efficiently across mobile ad hoc networks. The performance evaluation of these protocols has been going on since a long time. In most of the studies, the focus has been on the variations in pause times and network size to measure the performance of various mobile ad hoc network routing protocols. A very few work has been done on the performance analysis of protocols by varying the underlying mobility models. Through this paper, investigations have been made into the behavior of DSDV mobile ad hoc routing protocol by varying the underlying mobility models. The metrics used to analyze the performance are Throughput, Average End to End delay, Routing overhead and Packet Delivery Ratio. ? 2014 IEEE.
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    Influence of link sensing mechanism of IMEP on the performance of TORA under different mobility models
    (Institute of Electrical and Electronics Engineers Inc., 2015) Kaur, Amandeep; Mittal, Meenakshi
    The performance evaluation of Mobile Ad Hoc Network (MANET) routing protocols is an important as well as open area of research worldwide. Temporally Ordered Routing Algorithm (TORA) is an adaptable and distributed MANET routing protocol which is dependent on the services of Internet MANET Encapsulation Protocol (IMEP) for its various necessary functions like link status detection. The incorrect link failure detection by IMEP leads to creation of congested network and initiation of avoidable route maintenance in TORA. Thus changes need to be introduced in the link sensing mechanism provided by IMEP to improve the detection of links in TORA. According to previously available research, if the maximum number of OBM retransmissions is increased, significant improvement in the performance of TORA is noticed. This modification has been implemented in this paper and performance of Enhanced TORA is evaluated under Random-Waypoint model, Manhattan-Grid mobility model and Random-Direction model using FTP traffic with 10 connections. The results are then compared with those of original TORA using various performance metrics like Packet Delivery Ratio, Average End to End Delay and Routing Overhead. ? 2014 IEEE.