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Department of Electrical and Electronics Engineering: Recent submissions

Now showing items 1861-1880 of 2012

Bluetooth based e-Tutor system for effective knowledge transfer

Chaubey, V.K. (IJAER, 2011)
A dynamic resource allocation model along with adaptive power control in a multi-rate direct sequence CDMA with MIMO

Chaubey, V.K. (IEEE, 2012)

A throughput maximization algorithm for a CDMA system comprising of variable bit rate (VBR) groups has been proposed. The algorithm is aimed at efficiently utilizing the radio resources for maximal throughput while meeting ...
Design and Performance Analysis of Optical WDM Ring Network Using Proxy Node Strategy

Chaubey, V.K. (IEEE, 2011)

In this paper an analytical model of an optical ring network which is capable of handling WDM traffic intelligently has been presented. The proposed architecture can be used to ease the traffic congestion in a ring ...
Modeling and performance analysis of optical packet switching network using fiber delay lines

Chaubey, V.K. (IEEE, 2011)

One of the key problems in application of packet switching in optical domain is the handling of packet contentions that take place when two or more incoming packets are directed to the same output line. This problem can ...
Modeling and characterization of multi-rate direct sequence CDMA system using dynamic resource allocation scheme

Chaubey, V.K.; Chamola, Vinay (IEEE, 2012)

In this paper the resource allocation problem in multirate direct-sequence code division multiple access (DS-CDMA) has been discussed. A spectral efficiency maximization algorithm for a CDMA system comprising of variable ...
Design and simulation of CSRZ modulated 40 Gbps DWDM system in presence of Kerr Non linearity

Chaubey, V.K. (IEEE, 2012)

Research in optical communications is being constantly driven by requirements for higher data rates and better spectral efficiency. On one hand, higher bit rates per channel involve the deployment of high-order modulation ...
Design and simulation of long-haul 32 × 40 Gb/s Duobinary DWDM link in the presence of non-linearity with under-compensated dispersion

Chaubey, V.K. (IEEE, 2012)

In this paper, we present a simulation based analysis of long haul 40 Gb/s Dense Wavelength Division Multiplexing (DWDM) system operating at 1.28 Tb/s with Duobinary Return-to-Zero (DRZ) modulation format. The 32 Channels ...
Contention resolution in optical burst switching(OBS) network: A time domain approach

Chaubey, V.K. (IEEE, 2012)

An analytical model is developed to evaluate burst loss probability in optical-burst switching(OBS) network by considering the regimes of short and long FDLs. The impact of different node non-idealities on network performance ...
Performance analysis of optical burst switching (OBS) network using fiber delay line: A simulation approach

Chaubey, V.K.; Chamola, Vinay (IEEE, 2012)

One of the key problems in the application of optical burst switching (OBS) network is to overcome the performance degradation due to contention. Contention takes place when two or more incoming bursts are directed to the ...
FPGA based implementation and testing of OVSF code

Chaubey, V.K. (IEEE, 2013)

The orthogonal variable spreading factor (OVSF) code is widely used for preserving the orthogonality between physical channels. They provide multiple data rates for supporting different bandwidth requirements in a communication ...
Hardware co-simulation of Walsh sequences for 3G Software Defined Radio

Chaubey, V.K. (IEEE, 2013)

This paper aims the hardware co-simulation of parameterized Walsh code with classical counter architecture using MATLAB SIMULINK based Xilinx System Generator software tools. This is an implementation of the theory which ...
OVSF code generator for 3G wireless transceivers using Xilinx System Generator

Chaubey, V.K. (IEEE, 2013)

The Orthogonal variable spreading factor (OVSF) codes were first introduced for 3G standards. The OVSF are channelization codes are widely used for preserving the orthogonality between physical channels in a communication ...
FPGA based implementation & power analysis of parameterized Walsh sequences

Chaubey, V.K. (IEEE, 2014)

This paper presents FPGA based implementation of the theory which replaces a general Sine and cosine function by set of orthogonal functions i.e. Walsh function. The paper further compares Parameterized `Serial In Serial ...
A comparative performance analysis of different pulse shapes for optical transmission

Chaubey, V.K. (IEEE, 2015)

This paper reports a comparative investigation of different pulse shapes for optical transmission among Gaussian, super-Gaussian and soliton pulses under the effect of dispersion, fiber loss and initial chirp. MATLAB is ...
Investigation of optimum fiber types for high speed RZ-DQPSK transmission systems

Chaubey, V.K. (IEEE, 2015)

This paper presents a simulative analysis of 40Gb/s Return-to-Zero Differential Quadrature Phase Shift Keying (RZ-DQPSK) scheme under Self Phase Modulation (SPM) and Amplified Spontaneous Emission (ASE) over three commonly ...
Simulink models for performance analysis of high speed DQPSK modulated optical link

Chaubey, V.K. (AIP, 2016)

This paper attempts to present the design approach for development of simulation models to study and analyze the transmission of 10 Gbps DQPSK signal over a single channel Peer to Peer link using Matlab Simulink. The ...
Performance Evaluation of Path Length based Routing Strategies for Survivable WDM Network

Chaubey, V.K. (ACM Digital Library, 2016-03)

The Wavelength routed optical network employs well preconfigured optical lightpaths to carry the traffic of users to communicate in the internet at an increasingly huge data rate. The optical network requires lightpaths ...
Routing and wavelength assignment in WDM network using IWD based algorithm

Chaubey, V.K. (IEEE, 2016)

In this paper, we consider the Routing and Wavelength Assignment problem in WDM optical networks. We consider the dynamic traffic and assume that in each optical fiber the number of wavelengths has fixed. In this paper, ...
Compact modeling of a parabolic cross section nano-FinFET

Chaubey, V.K. (IEEE, 2016)

The model for current and manufacture of a moderately doped nanoscale FinFETs with parabolic cross section is proposed. The model of trapezoid FinFETs is extended to parabolic FinFETs, furthermore diminishing corner effects. ...
GPS signal jamming and anti-jamming strategy — A theoretical analysis

Chaubey, V.K. (IEEE, 2016)

The weak strength of GPS signal makes it very vulnerable to jamming. This calls for appropriate modeling and implementation of GPS signal source and jammers that are used to jam GPS signal. The present work describes a ...

Now showing items 1861-1880 of 2012

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