Prediction-Based Early Handoff Scheme for Data Transmission in Wireless Networks Using Enhanced DMTBR

--Shraddha S Kute, Rajendra D Kanphade and Gayatri Ambadkar

An early handoff load balancing scheme is proposed, which furthermore can coordinate with various Call Admission Control (CAC) schemes. This study developed a load adjusting plan that empowers exchange of some portion of heavy load in a base station to the others utilizing the coverage between base stations in remote cell frameworks. The proposed plot diminishes the new Call Blocking Probability (CBP) and handoff Call Dropping Probability (CDP), and furthermore increases the resource utilization of remote frameworks. Since the arrangement is initiated by a connection request got by the base station, it immediately reflects the loading of the base station. The effectiveness of the Load Balancing Early Handoff Scheme (LBEHS) is demonstrated by coordinating it with Enhanced Dynamic Multiple-Threshold Bandwidth Reservation (EDMTBR) to improve the call affirmation control function. The simulation results show that the proposed plan can satisfactorily improve the remote framework resource utilization. The prediction-based handoff mechanism decreases the packet loss and improves the performance.

© 2017 IUP. All Rights Reserved.

An Analysis of Static and Dynamic Routing Techniques Based on Various Network Performance Parameters

--Veenu and Himanshi Saini

The demand for high speed networks has significantly increased. In order to supply network capacity to attend to this demand, optical networks have been considered as the most reliable and economic solution to provide high transmission rates. High speed network works efficiently with appropriate routing techniques. The objective of this paper is to calculate and compare the performance of static routing techniques and dynamic routing techniques in wired networks. The effect of variations in bandwidth and number of nodes on the network performance are analyzed over a wide range of values. The parameters used for evaluation of performance are throughput, packet loss ratio, average latency and average jitter. Simulations are performed and analyzed in NS-2.35, and it is concluded that dynamic routing protocol shows better results as compared to static routing protocol network sizes considered. As network size increases, dynamic routing proves to be even more efficient.

© 2017 IUP. All Rights Reserved.

A Comparative Simulative Performance Analysis of WDM System Using Different Modulation Formats

--Jyoti and Kuldeep Singh

To increase the capacity of an optical fiber, Wavelength Division Multiplexing (WDM) is used which allocates a certain wavelength to each channel. In this paper, the performance of 4- and 8-channel WDM optical network has been analyzed at various channels spacing and for different input powers of CW Lorentzian laser at data rates of 20 Gbps using Modified Duo-binary Return to Zero (MDRZ), Non-Return to Zero (NRZ), Return to Zero (RZ) and Carrier Suppressed Return to Zero (CSRZ) modulation formats. As channels are multiplexed in WDM, dispersion is introduced. In order to overcome this problem, dispersion compensating fibers are used in symmetrical dispersion fiber compensation technique. In this investigation, transmission distance covered is up to 390 km using Single Mode Fiber (SMF) and Dispersion Compensating Fiber (DCF). For performance evaluation criteria, Bit Error Rate (BER), Eye Opening Penalty (EOP) and Quality factor (Q-factor) have been analyzed.

© 2017 IUP. All Rights Reserved.

An Investigation into Enhancing the Gate Electric Field of TFET

--Seema Dahiya, Pawan Kumar Singh and Ritu Jangra

The use of electronic devices is increasing day-by-day in the form of static and dynamic devices, and simultaneously the energy consumption of these devices is increasing due to the rise in requirement of information processed (Datta et al., 2013). There is also the social need to reduce the power consumption of these devices. In the past four decades, efforts towards minimizing the transistor size for novel and small products have introduced some challenges in designing the small size (David and Massimo, 2014). As per the technology roadmap for semiconductors, the reduction in power consumption of the Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) used in today’s electronic circuits is now approaching the fundamental limit, and these days new types of device structures are being investigated as possible replacements for traditional MOSFETs.

© 2017 IUP. All Rights Reserved.