Mobile Adhoc Networks is a collection of wireless mobile nodes, which form temporary networks without relying on any existing infrastructure or centralized administration or standard support services regularly available in wide area networks to which the host may normally be connected. In this paper the simulation results has been compared between previous & current approach for the correction ...

In this paper, we attempt to present a comparison through rigorous studies (existing conventional models) following software based modeling and verifications through simulations in terms of various traffic parameters such as packet loss, Recovery Time (Latency), reordering of packets including recovery time for various widely used path recovery models for the purpose of end-to-end recovery of L...

In recent years, several proxy solutions have been proposed to improve performance of TCP over wireless. The wide popularity of this protocol has pushed for its adoption also in communication contexts, the wireless systems, where the protocol was not intended to be applied. This is the case of High Speed Downlink Packet Data Access (HSDPA), which is an enhancement of third generation wireless s...

Active Queue Management (AQM) can potentially reduce packet loss rate in the Internet. This is used by routers for control congestion, where packets are dropped before queues become full. In this paper, comparative study has been done using NS2 simulator. By examine five different AQM techniques i.e. RED, RIO, SFB, SRR and BLUE the performance of network has been evaluated on the basis of three...

This paper presents a comparative study of two well-known network simulators: OPNET Modeler and Ns2. Other studies in this area have generally been confined to just one simulator. The motivation of this paper is to provide a guide to researchers undertaking packet-level network simulations. The simulator outputs were compared to the output from a live network testbed. The experimental compariso...

In MANETs (Mobile Ad Hoc Networks) communication at the mobile nodes can be achieved by using multihop wireless links. The architecture of such network is based not on a centralized base station but on each node which acts as a router and forwards data packets to other nodes in the network. The aim of each protocol, in an ad-hoc network, is to find valid routes between two communicating nodes. ...

Over two decades, a problem of location dependent has been focused for improving the communication Bandwidth-Power Efficiency of homogeneous networks. The efficiencies of communication links are weakened by the Hidden Terminal Problem.  Thus we propose a Fine – Tune Strategy for analyzing the On-Off communication region. We were observed that the proposed technique had been able to track and mo...

The Quad Tree Decomposition based performance analysis of compressed image data communication for lossy and lossless through wireless sensor network is presented. Images have considerably higher storage requirement than text. While transmitting a multimedia content there is chance of the packets being dropped due to noise and interference. At the receiver end the packets that carry valuable inf...

0974-9756/CIIT–IJ-1777/07/$20/$100 © 2011 CiiT Published by the Coimbatore Institute of Information Technology Abstract---Bluetooth is a low-cost, low-power wireless technology initially designed for cable replacement. With the new mobile lifestyle based on battery powered devices, Bluetooth came short in satisfying the needs of the high-rate applications due to its’ limited data rate. Introduc...

Optical wavelength division multiplexing (WDM) networking technology has been identified as a suitable candidate for future wide area network (WAN) environments, due to its potential ability to meet rising demands of high bandwidth and low latency communication. Networking protocols and algorithms are being developed to meet the changing operational requirements in future optical WANs (OWAN). S...