Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

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    Effect of mobility over performance of the ad hoc networks
    (2006) Geetha, V.; Aithal, S.; ChandraSekaran, K.
    An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration. A number of routing protocols like Dynamic Source Routing (DSR), Ad Hoc On-Demand Distance Vector Routing (AODV), Destination-Sequenced Distance-Vector (DSDV) and Temporally Ordered Routing Algorithm (TORA) are normally used in ad hoc networks. In this paper an attempt has been made to compare the effect of mobility in case of on-demand reactive routing protocols for mobile ad hoc networks: AODV with traditional proactive DSDV protocol. The performance is analyzed using varying number of connections in the network, mobility pause and speed of the node. These simulations are carried out using the ns-2 network simulator. © 2006 IEEE.
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    Modeling and analysing a novel restricted angle scenario model in MANET
    (2010) Vetrivelan, N.; Aduru, A.V.
    In this work, we have modeled a novel Restricted Angle Scenario model for Mobile Adhoc networks. The direction movement of the nodes are significantly specified with given angles. We have compared and analysed our novel Restricted angle scenario model and the impact of mobility on MANET protocols. The parameter metrics Packet Delivery Fraction, Routing load, and Latency have been taken into account. Our simulation result shows that the functioning of our Restricted Angle Scenario model has greatly influenced the performance of Routing Protocols in MANET environment. The result reveals the fact that the Reactive routing protocol DSR outperforms than the Proactive routing protocol DSDV. Our Novel Restricted Angle Scenario Model has performed well when we compare it with existing Waypoint mobility model while setting many source-destination connections. ©2010 IEEE.
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    Performance evaluation of TCP variants over routing protocols in multi-hop wireless networks
    (2010) Tahiliani, M.P.; Shet, K.C.; Basavaraju, T.G.
    Wireless internet has become popular in recent years due to the tremendous growth in the number of mobile computing devices and high demand for continuous network connectivity regardless of physical locations. In this paper, we investigate the effects of routing protocols on the performance of Transmission Control Protocol (TCP) variants in multi-hop wireless networks. Through simulations we study the effects of Destination Sequenced Distance Vector (DSDV), Optimized Link State Routing (OLSR), Ad hoc On demand Distance Vector (AODV) and Dynamic Source Routing (DSR) routing protocols on TCP Tahoe, TCP Reno, TCP Newreno, TCP with Selective Acknowledgment (SACK) option and TCP Vegas. The simulations are carried out for static as well as mobile nodes. The performance metric used is throughput. Another metric, expected throughput is used for the comparison of throughput when nodes are mobile. ©2010 IEEE.