····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cooperative relaying in a cognitive radio network (CRN) has been used to achieve diversity gain and energy efficiency through the relay node. This dissertation investigates the Neuro-Fuzzy (NF) based relay selection, fair resource allocation for cooperative relay network. The main idea is to increase the data transmission rate and spectrum utilization efficiency while decreasing the outage probability and complexity of the system. The outage probability and BER expressions have been derived. Simulation results depict close consensus between analytical results and simulations. NF selection algorithm provides better performance improvement over conventional algorithms. The complexity analysis shows that the proposed algorithm requires less time to select the best relay. We also investigate opportunistic spectrum access and spectrum hand-off (HO) for RCRN using intelligent NF based approach. The main aim is to increase the average throughput of the RCRN while reducing the number of HO decisions. Performance evaluations also reveal that the outage probability is reduced and the system`s capacity is increased. ····· 1036125499
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The electromagnetic scattering from bodies coated with metamaterials by using Finite Difference Frequency-Domain (FDFD). A formulation for the FDFD method is presented. A hybrid technique from FDFD and Particle Swarm Optimization technique (PSO) is used to reconstruct both the shape and the relative permittivity of a homogenous dielectric cylinder. The dielectric constants of materials in solid, liquid, or paste forms are considered. The thesis presents a graphics processing based implementation of FDFD method. The FDFD code has been implemented for CPU calculations and the same code is implemented for the Graphical Processing Unit (GPU) calculations using the Brook+ developed by AMD. The solution obtained by using the GPU based-code showed more than 40 times speed over the CPU based- code. Metamaterial superstrates used for directivity enhancement of cylindrical Dielectric Resonator Antenna (DRA) mounted on both circular and curved ground planes. Mutual coupling reduction between two cylindrical DRAs over infinite size ground plane or mounted on hollow circular cylindrical ground plane by using metamaterials are also investigated. ····· 1036125421
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Oscillators are integral part of many electronic systems. An oscillator is an electronic device used for the purpose of generating a signal. Almost all digital circuits are dependable on at least one clock source, which generates a rail-to-rail square wave. Applications range from clock generation in microprocessors to carrier synthesis in cellular telephones, requiring vastly different oscillator s topologies and performance parameters. Robust, high performance oscillator design in CMOS technology continues to pose interesting challenges. This work deals with the analysis and design of CMOS oscillators more specifically voltage controlled oscillators (VCOs). One of the most critical components in modern communication devices is the VCO. Wireless and mobile communications are two of the fastest growing microelectronics applications, and have an enormous impact on our daily lives. Driven by the insatiable commercial demand for lower cost and higher bandwidth and functionality RF transceivers, wireless communication systems are moving towards higher integration, while operating at higher frequencies ····· 1036125390
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray With the advent of new high data rate wireless applications, as well as growth of existing wireless services, demand for additional spectrum is rapidly increasing. Existing command-and-control spectrum allocations defined by government regulatory authorities, such as federal communications commission (FCC), prohibit unlicensed access to licensed spectrum, constraining them instead to several heavily populated, interference-prone frequency bands. Though several report shows that still the spectrum is not utilized efficiently across time and frequency. To use spectrum efficiently, a new intelligent wireless communication system has been developed termed as cognitive radio network. Multi-carrier techniques, such as orthogonal frequency division multiplexing (OFDM) transceiver have a big role in such advance wireless standard. However an OFDM or NC-OFDM may have several subcarriers that are deactivated i.e. zero valued input that means many FFT calculations are there which are not required at all. So the hardware resources of the FFT are not fully being exploited. Therefore a new approach of FFT pruning algorithm has been very much required where several subcarriers are deactivated. ····· 1036125368
····· lezzter Preis 49.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Intelligent Ventilation System(IVS) is an environment friendly product for BTS rooms. In the era of electricity crisis, this Microcontroller based control system not only reduces the consumption of power in BTS rooms but also minimizes the emission of Carbon-di-Oxide from Air Conditioner(AC)of a BTS room. The whole controlling is done in this project by a PIC Microcontroller IC 16F877A. So IVS is a Microcontroller based electronics device that maintains the overall environment of a BTS room by controlling a Fan unit, a Filter unit and an AC by observing the room temperature, room humidity and battery voltage level of a BTS room. ····· 1036125360
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The microstrip antenna is one of the most preferable for small equipment, especially when a built-in antenna is required. It has many advantages such as low profile and easy fabrication. However for low-frequency applications, the microstrip size becomes too large for practical implementation. The problems in microstrip antenna technology are the reduction of the antenna sizes and to obtain a larger bandwidth. The aim of this dissertation is to design and simulate compact microstrip patch antennas with good bandwidth.A semi-elliptical microstrip patch antenna with semi-elliptical parasitic patch is designed and investigated for Ku-band applications in Chapter 2. In this chapter stepwise simulation results have been presented while changing the various parameters of the patch and ground. Ultra-wideband (UWB) antennas have been a research and development topic of increased interest in the industry. The Federal Communication Commission (FCC) has recently allocated 7.5 GHz of bandwidth (3.1 to 10.6 GHz) for Ultra-wideband (UWB) applications. ····· 1036125339
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Building Automation System is the key feature for the time being which is useful where ever Automation required for the appliances. Information Provided is based on the current requirement and importance for the current run, as per our knowledge. However, Advanced methods and additional information will be accepted eventually. we are thankful to the team of LAMBERT Publishers provided the place to share our efforts. ····· 1036125179
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, the first part present the simulations and experimental results of a series of patch antennas in wide band. The conception of these patch antennas are realized by software HFSS `Ansoft-High Frequency Structure Simulator` and ADS `Advanced Design System`, themselves based essentially on the variation of the shape of the antenna, conductive material, the nature and the thickness of the substratum to have a structure which resounds in the frequencies used for precise applications. The simulations and experimental results are compared to those published in the bibliography. In the second part, we present the simulations results of the Broadband and dual band microstrip antenna. This are serves to join the telecommunication services by using a single antenna. Antennas broadband and dual band were obtained by using, respectively, the technique of pile of patches and hybrid antenna. The broadband antenna is established by two patches stacked, fed by aperture coupling and the dual band antenna is a hybrid antenna consisted of an annular microstrip antenna and a wave guide. The effects of the constitutional parameters of antennas were studied. ····· 1036125164
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, two types of direct adaptive control schemes for a class of nonlinear systems are proposed. Based on the feedback linearization theory, the architecture employs for the first approach the fuzzy logic reasoning of Takagi Sugeno (TS) type and uses for the second approach the strategy of neural network reasoning of radial basis function (RBF) type to approximate the feedback linearization control law. In each case, the parameters of the adaptive controller are adapted according to a law derived using Lyapunov stability theory. The adaptive controller is applied in simulation to control three nonlinear systems in both the fuzzy and the neural network methods. ····· 1036125163
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray There is an ever increasing need for bandwidth in the Internet and various other bandwidth hungry applications. This demand can be satisfied using optical WDM that allows the same fiber to carry many signals as long as each of these uses a different wavelength. WDM is a step towards furnishing the capabilities of the optical fiber which uses wavelength routing that is the networks ability to route a signal at intermediate nodes based on their wavelength.It has the ability to create a virtual topology upon the underlying physical topology of the network. The design of a virtual topology requires setting up of lightpaths which can traverse multiple links in the physical network and yet transmission is entirely optical without any opto-electronic conversion at the intermediate nodes.The potential of the virtual topology is dependent on the virtual topology design. The designing process is a complex problem.A designed virtual topology can be considered for various objective functions such as congestion control, delay minimization, hop length minimization, reducing the number of optical transceivers employed, minimizing the number of wavelengths utilised etc. ····· 1036125142
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Resistive Random Access Memory (RRAM) is a transistor free non-volatile dynamic RAM cell with very simple Metal-Insulator-Metal (MIM) structure and very high switching speed and high density memories. Different types of oxides like Transition Metal Oxides, Perovskite Oxides etc are used as the insulating dielectric layer of the capacitor like MIM structure. This ion-conducting oxide insulating layer can change its resistance by externally stimulated electric pulses with different amplitude and frequency. The steps precondition the system which can subsequently be switched between high conductive ON or Low Resistive State (LRS) and a less conductive OFF or High Resistive State (HRS). In this experimental study Sol-gel derived Titanium Dioxide (TiO2) is considered as the ion conducting insulating dielectric material of this RRAM device. Pd (Ag)/TiO2 /Pd (Ag) Metal-Insulator-Metal structure for RRAM devices have been designed and fabricated and studied in this book. Different analytical models and explanations to establish the mechanism behind the Transition metal oxide based RRAM device and Resistive Switching phenomenon are the addition features of this book. ····· 1036125086
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray We live in an age of unprecedented hyperconnectivity due to the Internet. However present Internet communication is mainly audio-visual, whereas in the physical world all of our five senses are used for communication. Thus, we often find Internet based communication lacking compared to communication in the physical world. To extend the sense of presence between humans, it is important to extend Internet communication to all of our five senses and develop multisensory communication. We should move from the age of information communication to the age of experience communication. This monograph presents research in novel remote touch communication systems for Internet communication between humans, as well as between humans and animals. Detailed technical and evaluation results, as well as detailed designs of the hardware and software, are provided. This book is invaluable for researchers and engineers who want to study, research, construct, and develop new Internet touch communication systems. Our systems and the studies detailed in this book provide a strong fundamental platform to further perpetuate the development of remote touch communication systems. ····· 1036125044
····· lezzter Preis 61.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book is written for the Undergraduate, Postgraduate and Doctoral students specializing in Microwave and Millimeter wave Avalanche Transit Time Devices and Oscillators. This book provides a clear insight of the device Physics and its application in Oscillator circuits. The main features of this book are Modelling and simulation of IMPATT Devices, their fabrication and characterization and high frequency limitation. A separate chapter is devoted on IMPATT Oscillator and amplifier. Finally the emerging application of the device as a potential Terahertz source is included to generate interest to the researchers working in this field. ····· 1036125043
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book presents some novel techniques to deal with the memory errors. The memories, specially the DRAMs, are the big source of errors in computer-based systems. These errors may cause system failures. If the systems are `critical`, such as Flight Control Systems, Nuclear Power Plant Control Systems, Space-Bound Systems, Financial Transaction Processing Systems, Traffic Light Control Systems etc., then a single failure may cause human catastrophes or great financial losses. Although the current fabrication technologies are more reliable than earlier ones but the advantage has been offset by the high degree of complexities of today`s circuits. The process technology at present scales around 50 nano-meters and the density of DRAMs is in the vicinity of 10 Gb per centimeter square. Such miniaturization has created the new reliability threats to the memory designers. The techniques presented in this book can help the designers to improve the reliability of memories by correcting single & multiple bit errors. The techniques make use of hardware and/or information redundancies. Although this may increase the cost of such systems, but provides improved reliability. ····· 1036125027
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Spectrum scarcity is one of the biggest challenges that modern world is facing. Efficient use of available licensed spectrum is becoming more and more critical with increasing demand and usage of radio spectrum. Researches show that the usage is not uniform throughout licensed spectrum rather it is heavy in certain parts and has portions that are utilized inefficiently. Some researchers even claim that more than 70% of licensed frequency band is not in use, most of the time. Different researches are in progress and ways are being found to efficiently utilize the available licensed spectrum. One of the ways is the use of Cognitive Radio , according to this the already licensed spectrum can be used more efficiently by introducing artificial intelligence in the radio. This enables the radio to learn from its environment, considering certain parameters. Based on this knowledge the radio can actively exploit possible empty frequencies in licensed band of spectrum that can then be assigned to other processes in such a way that they don t cause any interference to frequency band that is already in use. This makes the efficient usage of the available licensed spectrum possible. ····· 1036124973
····· lezzter Preis 53.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Progress in wireless communication enables a person to ring up a friend, send a message, or connect to some website through internet while he is roaming about the world. Although different regions support different communication standards and multimedia services, it is the software defined radio (SDR) framework that ensures enjoyment of such services to a globe-trotter by using only a single handheld wireless device. The work recorded in this thesis aims at designing and developing a common baseband processor which is an important component of an SDR system. Any wireless communication system follows a specific modulation scheme. To support several standards in a single device, realization of more than one modulation schemes is required. Separate hardware implementation of various modulation schemes requires considerable area and power. However, identifying common operators required in the targeted modulation schemes, building optimized units to implement them, and subsequently connecting the modules using a parameter-controlled multiplexing technique leads to a low-area low-power solution. ····· 1036124960
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Machines have become integral part of the human life, safety measures on these machines is not effective and hence industrial safety is still a concern, in spite of existing safety system. Industry needs a system which is easy to adopt and also least fault occurring. This book is about a solution for the industry needs, which proposes a safety mechanism with improved response time on industrial machineries based on PIR sensor. Here it is implemented in power press machine this can be applied to wide variety of industries at different scales small, medium, big sized machines. In this book, a prototype is developed which resembles the ideas of the PIR Sensor based safety mechanism at smaller scale.The novel idea discussed here will be helpful for the industries to setup the safety mechanism for their machines that will be economical and reliable. ····· 1036124955
····· lezzter Preis 39.90€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Discrete Fourier Transform (DFT) and Finite Impulse Response (FIR) filters are extensively used in Digital Signal Processing (DSP) and Image Processing. In this book, an arithmetic Sum-of-Product (SOP) based approach to implement area- and delay-efficient DFT and FIR filter circuits is presented. The proposed SOP based engine uses an improved column compression algorithm, and handles the sign of the input efficiently. The partial products of the computation are compressed down to two operands, which are then added using a single hybrid adder. The problem of synthesizing DFT and FIR filters circuits can also be cast as an instance of the Multiple Constant Multiplication (MCM) problem. RAG-n is one of the best known algorithms for realizing an MCM block with the minimum number of adders. For DFT coefficients, the proposed approach yields faster circuits (by about 12-13%) with low area penalty (about 5%), as compared to RAG-n. Significant speed-ups are also observed for a set of FIR filters with hard-to-implement coefficients. ····· 1036124925
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Vignetting for an image refers to the phenomenon of brightness attenuation away from the image center, and it is a more concerned artifact for high resolution camera. This contributes to vignetting results from foreshortening of the lens when viewed from increasing angles from the optical axis. High resolution cameras suffer for this kind of artifact more. It is a concern to reduce the vignetting artifact by using less memory consumption. In this book, we consider the vignetting resulting from the mentioned factor almost any kind of sources and propose a method for removing the vignetting artifact after taking the image and linearization of that image. We synthesized some parameters on the basis of vignetting artifact for a particular digital camera. This approach takes very limited bits of memory that is necessary for mobile device. By applying our approach, it shows how this approach is efficient to reduce the vignetting artifact with limited memory consumption. The basic formation of a digital camera image from natural scene is also described clearly in this book. ····· 1036124830
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In a World which looks less focused the Lambert Academic Publishing group has been instrumental in bringing forth new innovative ideas in the limelight with the sole aim of being the benefactor to millions in the society.It needs a tremendous effort and dedication to serve the society this way.As a budding engineer very few people get an opportunity to showcase their creativity.The idea of publishing at zero cost for the author is praiseworthy.LAP has indeed sparked off a plug in my life at a very early age in my professional career.This book has been a 6 month long tireless effort which is finally about to get published due to the extended help from the LAP publishers.This book will be very effective if it is put to use in all industries and at home where power plays an important factor.Purchasing a copy of this book would not only be helpful for the buyer but every single copy would motivate budding engineers like me to come out with more innovative ideas rather than being concealed in a shell. ····· 1036124799
····· lezzter Preis 71.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The main role played by neural network and fuzzy logic intelligent control algorithms today is to identify and compensate unknown nonlinear system dynamics. There are a number of methods developed, but often the stability analysis of neural network and fuzzy control systems was not provided. This work will meet those problems for several nerual netwrok and fuzzy algorithms. Some more complicated control algorithms included backstepping and adaptive critics will be designed. Nonlinear fuzzy control with nonadaptive fuzzy controllers is also analyzed, includign elastic fuzzy control. An experimental method for determining describing function of SISO fuzzy controller is given as well. The work described in this book serves as foundation on which analysis of particular representative industrial systems will be conducted. Also, it gives a good starting point for analysis of learning abilities of adaptive and neural network control systems, as well as for the analysis of the different algorithms such as elastic fuzzy systems. ····· 1036124794
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Optical methods and devices have been used for a variety of biomedical applications for about twenty years for chemical analysis in colorimetry and spectrophotometry. More recently instruments for direct chemical analysis in tissues have been developed, and at the beginning of the twentieth century, instruments based on the use of visible light began to be used. Through a lot of research, it has been found that the near infrared part of the electromagnetic spectrum has the ability to penetrate deeper into biological tissues compared to visible light. Infrared imaging allows achieving safe and noninvasive monitoring of important variables in a variety of clinical applications. ····· 1036124693
····· lezzter Preis 44.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This work provides an insight on the implementation of RSA cryptosystem using Verilog finally resulting in an IC. The complete implementation includes three phases: key generation, encryption process and decryption process. To generate the key, we use Random Number Generator and GCD blocks. Whereas for Encryption and Decryption processes Modular Multiplication, Modular Exponentiation blocks were implemented. Finally to bring out an IC, SoC Encounter in Cadence is used.The work also emphasizes on an introduction to Cadence and Verilog. Implementation details of some basic systems in Cadence using Verilog are also highlighted. ····· 1036124645· 1 · ::::: · 34 ·· 35 ·· 36 ·· 37 ·· 38 ·· 39 ·· 40 · ::::: · 46 ·
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