Search results for “System engineering”

Published Subscription 18 May 2019

Communication at High Data Rate with VCSEL Over MMF and Investigations

By Dr. Devendra Kumar Tripathi

Abstract: AbstractThis paper presents performance evaluation for the high data rate proposed communication network with VCSEL and multi-mode optical fiber. Numerous numerical evaluations have been carried out for key parameters over the span of multi-mode fiber. It showed wide eye opening over the selected length of fiber. It depicted good performance for line width of 10, lower normalizer average power, with temperature value of 40 degree centigrade. Overall performance over 2km …

Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 1, 2019 · pp. 14–21 Read article

Published Subscription 5 Mar 2019

Performance Analysis of DE-QPSK and π/4 QPSK with MRC Receiver over η-µ fading channel

By Kiranpreet Kaur, T. S. Kamal, J. S. Ubhi

Abstract: This study presents approximate but simple expression for the average symbol error rate of differentially encoded quadrature phase shift keying (DE-QPSK) and π/4 QPSK with Maximal Ratio Combining (MRC) diversity over independent η-µ fading channels. Numerical results demonstrate the error performance for different values of fading parameter µ for Lth order MRC for Format 1 and Format 2. Furthermore, error performance of both modulation techniques has also been analyzed for …

Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 53–59 Read article

Published Subscription 5 Mar 2019

Compact Microstrip Patch Antenna Using Metamaterials To Perform As Narrow Band LTE Receiver Antenna

By Tushar P. Dave, Nita T. Dave, Jagdish M. Rathod

Abstract: This paper presents the review of various stages of development for improving the parameters of microstrip patch antenna. The main focus of paper is on metamaterials as this material is used to extend the capability of microstrip patch antenna and ultimately antenna can be improved for its utilization in different applications which were not earlier due to limitations of simple microstrip patch antenna. This paper also presented design of compact …

Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 24–29 Read article

Published Subscription 19 Jul 2019

Optimize Throughput by Estimating Optimal Packet Length for Wireless Sensor Node

By Hiren Patel, Vipul Shah

Abstract: AbstractA Wireless Sensor Network (WSN) is employed for monitoring and control of distributed sensing points with the use of Sensor Nodes (SN). The sensor nodes form a wireless network to disseminate the sensed data over to the base station for its processing and analysis. For a wireless network, effective and efficient communication of data from the sensor node to base station plays a vital role in estimating the life of …

Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 2, 2019 · pp. 37–45 Read article

Published Subscription 18 May 2019

Clustering based Model to Provide Defense against DDoS attacks in MANETs

By Deepa Nehra, Kanwalvir Singh Dhindsa, Bharat Bhushan

Abstract: AbstractSecurity of MANETs is the part of extensive issue of research in past years. MANET is liable to DDoS attacks because of its no fixed infrastructure, changing topology, open medium, cooperative and trust-based algorithms and absence of a well-defined line of defense. DDoS attack is a synchronized attack created by attackers to overflow the target network with big quantity of information in the form of packets such that the resources …

Published in Journal of Communication Engineering & Systems · Vol. 9, Issue 1, 2019 · pp. 7–13 Read article

Published Subscription 5 Mar 2019

Review and Analyze Low Cross Polarized Feed for Offset Parabolic Reflector Antenna for S-Band Application

By Prashant Sachaniya, Honey Dhandhukia, Dr. J. M. Rathod

Abstract: This study discusses the design of low cross polarized feed for offset parabolic reflector antenna and its application. Conical corrugated horn antenna consists of an input mode TE11 and the corrugation part requires a transition to HE11 mode for propagation. The paper presents the widely used design of TE11-HE11 mode converter i.e. Variable slot mode converter. Three different design of corrugated horn antenna is presented for optimizing the value of …

Published in Journal of Communication Engineering & Systems · Vol. 8, Issue 3, 2018 · pp. 30–36 Read article

Published Subscription 29 Mar 2019

Simulation Based Performance Analysis of Wired Computer Networks

By rahul malhotra, Vaibhav Nijhawan

Abstract: Abstract Simulation is the process of accessing the real-world scenario in a virtual way. The purpose of simulation modeling is to ease the understanding of real working situations, to surge its behavior and its reactions during particular events. It is the application of computational models to the study and prediction of physical events or the behavior of engineered systems. Selection of a particular network simulator involves factors like availability of …

Published in Journal of Communication Engineering & Systems · Vol. 1, Issue 1-3, 2011 · pp. 60–66 Read article

Published Subscription 1 Apr 2019

Innovative Developments of Optical Fiber using Multiplexing/Demultiplexing

By Abd El–Naser A. Mohamed

Abstract: AbstractAs of late, numerous exploration works have been centered around the fiber optic gadgets for optical correspondence frameworks. One of the principle hobbies is on the optical intensifiers to support a powerless flag in the correspondence frameworks. Keeping in mind the end goal to conquer the confinements forced by electrical recovery, a method for optical intensification was looked for. The contending innovation developed: the first was Raman enhancement. One reason …

Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 1, 2015 · pp. 21–29 Read article

Published Subscription 1 Apr 2019

Trend of LIS Education in Abroad

By K. Rajaram, S. Jeyachitra, T. Rajan

Abstract: AbstractIn the current world scenario, where the whole world has become a digital village, students are more comfortable using digital tools rather than looking into books. Instead of looking for information in books like encyclopedia’s today’s generation is more dependent upon websites like Yahoo, Google and OPAC etc. The paper analyzes the nature and extent of major curricular change in LIS education. Multiple methods were used to collect data, including …

Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 1, 2015 · pp. 30–33 Read article

Published Subscription 1 Apr 2019

Performance Analysis of Wireless Propagation Model to Improve Signal Strength and BER for Wireless Mobile Network

By Samta ., Kusum Grewal Dangi

Abstract: AbstractWhenever we setup a network, environment properties such as fading, scattering etc. plays a very important role in choosing spectrum and method of propagation. The spectrum deals with frequency range suitable for communication in a particular environment, and the propagation method deal with channel selection, channel sensing and to perform quality communication throughout the network. To achieve quality output from the network, it is necessary to define network under different …

Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 2, 2015 · pp. 1–7 Read article

Published Subscription 2 Apr 2019

Comparison of AODV and DSR Routing Protocols by using Mobility Model in Vehicular Ad-Hoc Network

By Monika Shakya, Karuna Markam

Abstract: AbstractVehicular ad hoc network is a type of network that provides the communications between vehicle and road side; vehicle and vehicle; and vehicle and infrastructure. VANET has new applications and features for travelers for providing vehicle related information for safety purpose that has never been possible in past. It is an application of MANET. In MANET the node is communicating with the base station. The present paper is mainly intended …

Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 2, 2015 · pp. 24–29 Read article

Published Subscription 2 Apr 2019

Comparative Performance Analysis of Inter-Domain Routing Protocols in Integrated HSDPA and WLAN Ad Hoc Networks with Streaming Traffic

By Shashank Tripathi, A K Jain

Abstract: AbstractIntegration of HSDPA and WLAN Ad Hoc Networks is to increase coverage and capacity of UMTS Networks. Inter-Domain routing is new challenge for them due multiple hopes away end users. This paper presents a comparative performance analysis for Inter-domain routing in Integrated HSDPA and WLAN Ad Hoc Networks with asymmetric voice and video streaming traffic class on BellmanBGPv4, Bellman, RIPv2 and RIPv2BGPv4 routing protocols.Keywords: Integrated HSDPA and WLAN Ad Hoc …

Published in Journal of Communication Engineering & Systems · Vol. 5, Issue 3, 2015 · pp. 7–18 Read article