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RISC is a design technique used to reduce the amount of area required, complexity of instruction set, instruction cycle and cost during the implementation of the design. This article presents a simple 8-bit RISC processor design and implementation on Spartan-6 SP605 Evaluation Platform FPGA using Verilog Hardware Description Language (HDL). The processor is designed using Harvard architecture, having...
This paper presents a method of calculating the minimal required transmission period for control messages and power margin for MANET with constrained resources, namely for communication and control systems on-planet robotic systems. For a system with ten robotic devices, with velocities of 10 cm/s, the sufficient power margin for worst case scenario will be equal to dP = 1 dB, which gives a transmission...
In this work, we have studied the different optical parameters of octagonal photonic crystal fiber under different liquid filled core like water, toluene and carbon disulfide (CS2). The optical properties like effective index, dispersion coefficient and nonlinear coefficient has been observed for a wavelength range of 800nm to 1600nm. Each characteristic is studied using finite element method (FEM)...
This paper presents a comprehensive solution to monitoring and inspection of power-line distribution system. This involves two robotic platforms which are heterogeneous and cooperative in executing tasks as planned. One of them is Robonwire which is a three-arms robot which moves on the transmission lines while the other is an Octacopter UAV. The UAV inspects the transmission tower while the Robonwire...
An (RTU) Remote Terminal Unit is a standalone data acquisition and control unit which is used to process analog and digital signals like voltage, signal inputs from thermocouple, leak detector which sends digitized data packets over Ethernet to the near Local Control Centre (LCC) and generates control outputs. This RTU generally works on harsh environment so the processor inside the RTU is susceptible...
In this paper, an efficient human face detection, recognition and Text To Speech (TTS) based wishing system is designed. The system design involves face detection using Viola-jones object detection algorithm, train the data base by finding the speeded up robust features (SURF)[9] features of detected faces, match of test features with train database features using Fast library for approximate Nearest...
In conventional medical refrigerators, there is no system of automatic monitoring and tracking products kept inside them. In any hospital, the refrigerator is the key component for storage of vaccines, serums, reagents, hormones etc. In our paper, we present a novel approach of intelligent medical refrigeration system using IoT, RFID Technology, sensors and control unit. The refrigerator is equipped...
In this paper we propose a digital signature scheme using a two-layer multivariate polynomial system. This scheme works like a zero-knowledge proof scheme. The algorithm can be implemented in two modes, parallel mode and series mode. As Multivariate Polynomial Cryptography (MPC) is a viable choice in the post quantum era, various algorithms based on MPC are gaining importance. The proposed scheme...
Sports and recreational activities constitute to be one of the most rapidly growing areas of personal and consumer oriented Internet of Things applications. Although few manufacturers have started developing smart sports products, they seem to lack in standardized architectural framework. No standard architecture has yet been devised by any researchers. This literature investigates how sports and...
Network centric warfare has been serving the defence mechanism since last few decades. Contemporary network oriented solutions exhibit vertical silos which lack in inefficient connected approach. Internet of Things holds the key potential to interconnect the battlefield with the digital world in ways that promise to fundamentally change military operations. This study proposes a novel architectural...
This paper discusses an optical filter designed using the two-dimensional (2D) photonics crystal. The filter has been designed to work in Dense Wavelength Division Multiplexing (DWDM) communication using ultra cell resonant cavity. The filter analysis was initially carried out by changing the attributes of photonic crystal such as radius of inner ring rods and refractive index. Hence, it is possible...
Recent advances in using computer with different fields of sciences produced huge amounts of data. These data represent as an analysis tool and key to overcome many problems. Clustering is a primary process to analyze the data as well as, it's a preprocessing step before other techniques like classification. Density-Based clustering algorithms have advantages like clustering any arbitrary shapes and...
Over the different Modulation Techniques, Pulse Width Modulation is one of the major renowned modulation strategy, because the pulses are generated based on reference signal and the reference signal is sinusoidal. So many modifications are made in this strategy since PWM era starts in the area of Power Electronics, the modifications are like with the reference or carrier. This paper also discussed...
Most of the Electric drive systems should possess these benchmark properties like linear control, reliability and stable operation. Dc driven machines gain some advantage in these perspectives. The speed control strategies of DC motor plays a vital role in the performance of drive. The main Purpose of speed controller is to take an appropriate signal sample of speed and to bring the motor to that...
The analysis of the aircraft model with aeroelastic interactions is extremely difficult task since the size of the flexible aircraft models is complex. This paper compares the model simplification methods to obtain low order mathematical model of a flexible aircraft, which is appropriate for control law design. In the present investigation, higher order mathematical model of Flexible aircraft is reduced...
Cooperative relaying is a promising technique for present wireless communication networks such as Orthogonal Frequency Division Multiple Access (OFDMA) to satisfy high throughput demand andquality-of-service (QoS) requirements. A suboptimal relay selection, power allocation and sub carrier assignment scheme under a total power constraint is proposed for a QoS aware resource allocation for a cooperative...
Cognitive Radio (CR) is a promising solution for the spectrum scarcity problem in wireless communication systems. CR monitors the environment and detect spectrum holes when primary users are absent. In this paper a new spectrum sensing technique is proposed, which is designed based on the sample covariance matrix. The proposed technique is compared with existing Eigen value based spectrum sensing...
Multi-channel MAC protocols gains very much importance because of the necessity to enhance the network capacity of wireless networks. Existing MAC protocols rarely exploit the non-interfering multiple channels of 802.11 standard. This paper evaluates a channel allocation method which improves the overall throughput of 802.11 MAC. This method reduces collision considerably, by allowing each node to...
Orthogonal Frequency Division Multiplexing (OFDM) power line communication (PLC) systems perform better with the implementation of efficient bit loading techniques. In this paper, improvement in raw bit rates for PLC is obtained by using the combination of greedy incremental bit loading algorithm and the concept of multiwire PLC with multiple electrical connections between transmitter and receiver...
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