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This article uses an integrated field and remote sensing based approach to estimate the debris thickness and its influence on glacier down-wasting. The Panchhi Nala glacier, western Himalaya was selected as test site. The spatial distribution of debris thickness (1–50 cm) was obtained by correlating field measured debris thickness and remotely acquired surface temperatures. The surface elevation changes...
With some recent developments in the field of wireless communication at rapid pace, users are getting a number of applications which require the precious bandwidth to work on. As the bandwidth is limited, the available spectrum is being congested day by day. Cognitive Radio System (CRS) plays an important role in such scenario. It dynamically adapts its parameters and protocols to provide unused spaces...
The general framework expense can be lessen by the utilization of proper battery, which accomplish less charging time, high battery SOC and thusly, more lifetime. The battery is the most ordinary and productive strategy for vitality stockpiling in standalone heavenly bodies because of its minimal effort and simplicity of accessibility. Photovoltaics are not a perfect hotspot for charging batteries...
Cognitive Radio (CR) seems to be a tempting solution in order to resolve the problem regarding spectrum underutilization and spectrum scarcity. Among the various fundamental functions of CR system, spectrum sensing is the key function where it senses the electromagnetic environment to detect spectrum holes (vacant frequency bands), that can be utilized by Secondary Users (SU) to achieve spectral efficiency...
In this paper, a comparison between Single Gate Fully Depleted SOI (SGSOI) and Double Gate Fully Depleted SOI (DGSOI) MOSFET with Si3N4 Spacer (insulator) around the Gate electrode at various different technology nodes are investigated. Simulations are done in ATLAS package of SIVACO tool. Further in this work, study of SON Devices (structure with air in place of buried oxide is termed as Silicon...
Distributed cloud based systems are sending the traditional processing systems at the back-front because of their increasing popularity. Fault tolerance is a rapid growing challenge in the distributed cloud based system. Fault tolerance is the ability of the system to perform its function even in the presence of the failures. A number of models and algorithms has been developed to make the distributed...
Phase noise causes degradation in the performance of orthogonal frequency division multiplexing (OFDM) based wireless communication systems. The phase noise presence can reduce effective signal to noise ratio (SNR) at the receiver, reduces the bit error rate (BER) and data rate. Phase noise introduces two effects: common phase error (CPE) and inter-carrier interference (ICI) and therefore degrade...
Numerous algorithms have been invented for optimizations which are nature inspired and based on real life behaviour of species. In this paper, intelligent chasing and hunting methods adopted by the dogs to chase and hunt their prey in groups are used to develop the novel methodology named as “Dog Group Wild Chase and Hunt Drive (DGWCHD) Algorithm”. The proposed algorithm has been implemented on some...
Numerous methodologies, system models and modulation techniques are present in literatures for indoor Visible Light Communication (VLC). This paper proposed a VLC system model, for Line of Sight (LOS) and partially Non Line of Sight (NLOS) in indoor applications. The novice modulation technique based on polarization phase shift key and Brewster's angle based polarization diversity technique (BABPDT)...
The Frequency Assignment Problem is assignment of frequencies or channels to establish link between base station and mobile transmitter in cellular system. To avoid interference, minimum separation between assigned frequencies is required. This problem is NP-hard. Due to limited availability of spectrum and reuse of same frequencies at different geographical locations, an excellent assignment is to...
Silicon-On-Insulator (SOI) technology is a potential technology for future VLSI system implementations. SOI technology offers MOS devices with suppressed CMOS latch-up, higher packing density and higher speed. SOI MOSFET structures offer many advantages over conventional Bulk MOS transistor. In this paper, ground plane effect on FD SOI MOSFET has been discussed. There are two ways to insert the ground...
We present the design of a transmitter and a receiver for digital communication system that uses function modulation (fm) method. The design covers both orthogonal and non-orthogonal analytic functions. The design is based on the concept of software radio on a general purpose Digital Signal Processor (DSP). A numerical method for generating the waveforms required for the fm system is presented. Experimental...
This letter describes a technique for the synthesis of lowpass sharp-cutoff filters employing a nonlinear element. The nonlinearity is preselected, and the linear portion of the filter is synthetised around it. Such a procedure yields a very simple technique for synthetising the above class of nonlinear filters.
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