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Author: Vasanth Raj P T Publisher: Classicsbooks ISBN: Category : Technology & Engineering Languages : en Pages : 0
Book Description
Wireless Communication has emerged enormously in recent years. The habit of internet turns out to be an obligatory for present-day living lifestyle. Information transformation over wireless medium gets increased due to the development in technology. Information over mobile communication is transferred from base station (BS) to mobile station (MS), vice versa over wireless medium. This leads to increase in users. Future generation (5G) wireless networks objective is to offer high data rate, and supports voice, data and video which requires larger bandwidth. Information's are transferred in the form data, pictures and video to the user. Data, pictures and videos are transmitted through the wireless network in the form of data packets. These are transmitted through antenna. To increase the data rate of transmission Multiple-input-Multiple-output (MIMO) technique is introduced. MIMO helps to transfer large amount of data in short span due to its high data rate performance. Recent studies show that users are increasing rapidly due to this advantage. When users get increased then there will be a lag in the entire performance of the system especially in bit error rate (BER) performance.Movement of the users and propagation in an unconstrained media may leads to fading, shadowing and delay spread. It front-runners to major interferences like Multiple Access Interference (MAI), Co-Channel Interference (CCI) and Inter Symbol Interference (ISI). Research reveals that this will affect the future of wireless communication. These interferences will affect the system's BER performance. Researcher from various countries paid a lot of consciousness on Multi-Carrier Code Division Multiple Access (MC-CDMA) technique. It is one of the most powerful air interfaces for reverse link of next generation broadband mobile communication system and for tranquillize the interferences. MC-CDMA has the welfare of frequency-diversity, better advantages of orthogonal frequency division multiplexing (OFDM) and Code Division Multiple Access (CDMA). MC-CDMA has the high prospective to transmit data's in the form of pictures, voice and video. It enrolls Multi-User detection (MUD) technique to mitigate the effect of interference. MUD algorithm is employed to achieve better BER performance of the system. MUD is used to demodulate mutual interfering signals. MUD reduces the interference to increase the capacity of the channel. It alleviates the problems that occurs nearby as well as far away.Transmitter Pre-processing (TP) is carried out to diminish the interference by signal processing at the transmitter side. Multi-user transmitter preprocessing (MUTP) is for transmitter, multiuser interferences conquestTP can be consummate at the transmitter side. MUTP are categories into mainly two type Optimal Maximum-likelihood sequence estimation (MLSE) and Suboptimal. From there MUTP are different types: Zero Forcing (ZF) MUTP, Minimum Mean Square Error (MMSE) MUTP, Maximum Mutual Information (MMI) MUTP, Minimum Variance Distortionless Response MUTP, etc. With this type of MUTP, system performance can be improved. Turbo Codes has the capacity to increase the gain of the channel. It is error correcting codes that comes closer to Shannon's limit. Turbo codes have an astonishing performance of BER at low signal to noise rate (SNR).Image transmission over wireless medium is a grueling errand for the users. Security of the image has to be taken care of while transmissionEncryption alike Advanced Encryption Standard (AES) and Arnold Cat Map (ACM) are frequently worn encrypting algorithm for secured transmission of data. Compression of image place a vital role when it comes to transmission of image. For compression discrete wavelet transform (DWT) and integrate wavelet transform (IWT) are preferred for their simple computation and low complexity.Super resolution (SR) is a practice castoff for improving the quality of the image.
Author: Vasanth Raj P T Publisher: Classicsbooks ISBN: Category : Technology & Engineering Languages : en Pages : 0
Book Description
Wireless Communication has emerged enormously in recent years. The habit of internet turns out to be an obligatory for present-day living lifestyle. Information transformation over wireless medium gets increased due to the development in technology. Information over mobile communication is transferred from base station (BS) to mobile station (MS), vice versa over wireless medium. This leads to increase in users. Future generation (5G) wireless networks objective is to offer high data rate, and supports voice, data and video which requires larger bandwidth. Information's are transferred in the form data, pictures and video to the user. Data, pictures and videos are transmitted through the wireless network in the form of data packets. These are transmitted through antenna. To increase the data rate of transmission Multiple-input-Multiple-output (MIMO) technique is introduced. MIMO helps to transfer large amount of data in short span due to its high data rate performance. Recent studies show that users are increasing rapidly due to this advantage. When users get increased then there will be a lag in the entire performance of the system especially in bit error rate (BER) performance.Movement of the users and propagation in an unconstrained media may leads to fading, shadowing and delay spread. It front-runners to major interferences like Multiple Access Interference (MAI), Co-Channel Interference (CCI) and Inter Symbol Interference (ISI). Research reveals that this will affect the future of wireless communication. These interferences will affect the system's BER performance. Researcher from various countries paid a lot of consciousness on Multi-Carrier Code Division Multiple Access (MC-CDMA) technique. It is one of the most powerful air interfaces for reverse link of next generation broadband mobile communication system and for tranquillize the interferences. MC-CDMA has the welfare of frequency-diversity, better advantages of orthogonal frequency division multiplexing (OFDM) and Code Division Multiple Access (CDMA). MC-CDMA has the high prospective to transmit data's in the form of pictures, voice and video. It enrolls Multi-User detection (MUD) technique to mitigate the effect of interference. MUD algorithm is employed to achieve better BER performance of the system. MUD is used to demodulate mutual interfering signals. MUD reduces the interference to increase the capacity of the channel. It alleviates the problems that occurs nearby as well as far away.Transmitter Pre-processing (TP) is carried out to diminish the interference by signal processing at the transmitter side. Multi-user transmitter preprocessing (MUTP) is for transmitter, multiuser interferences conquestTP can be consummate at the transmitter side. MUTP are categories into mainly two type Optimal Maximum-likelihood sequence estimation (MLSE) and Suboptimal. From there MUTP are different types: Zero Forcing (ZF) MUTP, Minimum Mean Square Error (MMSE) MUTP, Maximum Mutual Information (MMI) MUTP, Minimum Variance Distortionless Response MUTP, etc. With this type of MUTP, system performance can be improved. Turbo Codes has the capacity to increase the gain of the channel. It is error correcting codes that comes closer to Shannon's limit. Turbo codes have an astonishing performance of BER at low signal to noise rate (SNR).Image transmission over wireless medium is a grueling errand for the users. Security of the image has to be taken care of while transmissionEncryption alike Advanced Encryption Standard (AES) and Arnold Cat Map (ACM) are frequently worn encrypting algorithm for secured transmission of data. Compression of image place a vital role when it comes to transmission of image. For compression discrete wavelet transform (DWT) and integrate wavelet transform (IWT) are preferred for their simple computation and low complexity.Super resolution (SR) is a practice castoff for improving the quality of the image.
Author: K. Shankar Publisher: Springer ISBN: 3030208168 Category : Technology & Engineering Languages : en Pages : 161
Book Description
This book offers an essential guide to Wireless Sensor Networks, IoT Security, Image Processing, Secure Information Systems, and Data Encryption. In addition, it introduces students and aspiring practitioners to the subject of destination marketing in a structured manner. It is chiefly intended for researcher students in the areas of Wireless Sensor Networks and Secure Data Communication (including image encryption, and intrusion detection systems), academics at universities and colleges, IT professionals, policymakers and legislators. Given its content, the book can be used as a reference text for both undergraduate and graduate studies, in courses on Wireless Sensor Networks, Secure Image Processing, and Data Encryption applications. The book is written in plain and easy-to-follow language and explains each main concept the first time it appears, helping readers with no prior background in the field. As such, it is a “must-read” guide to the subject matter.
Author: Management Association, Information Resources Publisher: IGI Global ISBN: 1799824551 Category : Technology & Engineering Languages : en Pages : 1618
Book Description
Collecting and processing data is a necessary aspect of living in a technologically advanced society. Whether it’s monitoring events, controlling different variables, or using decision-making applications, it is important to have a system that is both inexpensive and capable of coping with high amounts of data. As the application of these networks becomes more common, it becomes imperative to evaluate their effectiveness as well as other opportunities for possible implementation in the future. Sensor Technology: Concepts, Methodologies, Tools, and Applications is a vital reference source that brings together new ways to process and monitor data and to put it to work in everything from intelligent transportation systems to healthcare to multimedia applications. It also provides inclusive coverage on the processing and applications of wireless communication, sensor networks, and mobile computing. Highlighting a range of topics such as internet of things, signal processing hardware, and wireless sensor technologies, this multi-volume book is ideally designed for research and development engineers, IT specialists, developers, graduate students, academics, and researchers.
Author: Aboul Ella Hassanien Publisher: Springer Nature ISBN: 3031039181 Category : Technology & Engineering Languages : en Pages : 708
Book Description
This book constitutes the refereed proceedings of the 8th International Conference on Advanced Machine Learning Technologies and Applications, AMLTA 2022, held in Cairo, Egypt, during May 5-7, 2022. The 8th edition of AMLTA will be organized by the Scientific Research Group in Egypt (SRGE), Egypt, collaborating with Port Said University, Egypt, and VSB-Technical University of Ostrava, Czech Republic. AMLTA series aims to become the premier international conference for an in-depth discussion on the most up-to-date and innovative ideas, research projects, and practices in the field of machine learning technologies and their applications. The book covers current research on advanced machine learning technology, including deep learning technology, sentiment analysis, cyber-physical system, IoT, and smart cities informatics and AI against COVID-19, data mining, power and control systems, business intelligence, social media, digital transformation, and smart systems.
Author: Ahmed El Shafie Publisher: ISBN: Category : Eavesdropping Languages : en Pages :
Book Description
Information secrecy is crucial to a wireless communication system due to the broadcast nature of radio-frequency transmissions. Traditionally, secrecy has been provided by designing upper-layer sophisticated protocols. More specifically, the problem of securing the information from malicious eavesdropping nodes has been tackled by relying on the conventional encryption mechanism. To improve the system security, physical-layer (PHY) security has been recently recognized as a valuable tool to guarantee information-theoretic confidentiality of messages transmitted over the wireless medium. In this dissertation, we propose new efficient schemes to secure the wireless links of various wireless communications networks. We investigate both the frequency non-selective and selective channels for different relaying networks. For the frequency-selective channels, we use the orthogonal-frequency division-multiplexing (OFDM) transmission scheme to convert the channel into a set of flat-faded sub-channels where each OFDM block begins with a cyclic-prefix sequence to eliminate the inter-block interference. For frequency-selective and non-selective channels, we propose secure schemes and evaluate their performance. Our proposed artificial noise aided schemes are based on the spatial and temporal degrees of freedom provided by the multiple antennas at the legitimate nodes and the cyclic prefix of the OFDM systems, respectively. We provide in-depth analysis for the PHY security of many wireless systems architectures including single-input single-output (SISO) systems, relay-aided SISO systems, multiple-input multiple-output (MIMO) systems, and relay-aided MIMO systems. In addition, we investigate the impact of data buffers at communicating nodes as well as the presence of friendly jamming nodes on the achievable secrecy rates. The duplexity capabilities of the relay nodes are also investigated and their impacts on the achievable secrecy rates are quantified. To make the communication systems more robust against eavesdropping, we also investigate securing wireless networks in the presence of a set of untrusted relay nodes where the relay nodes are assumed to be honest but curious as in, e.g., the aggregating units in the smart grids, and the servers in governmental intelligence systems. As a case study on the impact of passive and active security attacks, we quantified the gain of our proposed encoding and secure schemes in terms of improving the demand-side management's security and reducing the monetary loss to the utility.
Author: Yan Zhang Publisher: IGI Global ISBN: 1599049007 Category : Technology & Engineering Languages : en Pages : 860
Book Description
Provides research on security issues in various wireless communications, recent advances in wireless security, the wireless security model, and future directions in wireless security.
Author: Mai Helmy Shaheen Publisher: CRC Press ISBN: 1000325989 Category : Technology & Engineering Languages : en Pages : 269
Book Description
This book presents novel hybrid encryption algorithms that possess many different characteristics. In particular, “Hybrid Encryption Algorithms over Wireless Communication Channels”, examines encrypted image and video data for the purpose of secure wireless communications. A study of two different families of encryption schemes are introduced: namely, permutation-based and diffusion-based schemes. The objective of the book is to help the reader selecting the best suited scheme for the transmission of encrypted images and videos over wireless communications channels, with the aid of encryption and decryption quality metrics. This is achieved by applying number-theory based encryption algorithms, such as chaotic theory with different modes of operations, the Advanced Encryption Standard (AES), and the RC6 in a pre-processing step in order to achieve the required permutation and diffusion. The Rubik’s cube is used afterwards in order to maximize the number of permutations. Transmission of images and videos is vital in today’s communications systems. Hence, an effective encryption and modulation schemes are a must. The author adopts Orthogonal Frequency Division Multiplexing (OFDM), as the multicarrier transmission choice for wideband communications. For completeness, the author addresses the sensitivity of the encrypted data to the wireless channel impairments, and the effect of channel equalization on the received images and videos quality. Complete simulation experiments with MATLAB® codes are included. The book will help the reader obtain the required understanding for selecting the suitable encryption method that best fulfills the application requirements.
Author: Reza Sohrabi Publisher: ISBN: 9780438897724 Category : Eavesdropping Languages : en Pages : 95
Book Description
As the technology and computing power advance day by day, physical layer security in wireless communications gains more importance. It allows the security of wireless communications based on information theoretical guarantees without the need for cryptography. One important practical challenge for physical layer security arises from the fact that no information about the passive eavesdroppers is available to the legitimate nodes. Without such information, optimizing the transmission parameters has always been a difficult task. In this study we aim to address various challenging aspects about this issue and propose a new perspective into the analysis of secrecy with a focus on jamming. We start from the case of eavesdropper's channel state information (CSI) known to users in a three-node single-antenna multi-subcarrier network and present an improved optimization algorithm compared to previous methods. Then we expand our horizon to the case of multiple-antenna nodes with eavesdropper's CSI unknown to users. We investigate a secure wireless communication scheme which combines two of the most effective strategies to combat eavesdropping, namely mixing information with artificial noise at the transmitter and jamming from a full-duplex receiver. While such setup has been investigated in related works, new and important insights are revealed in this study. We investigate the design of optimal jamming parameters to achieve higher secrecy. We then derive a closed-form expression for asymptotic normalized instantaneous secrecy rate of our model. Based on the results of the asymptotic analysis, we propose an alternative less complex tractable optimization problem for the design of optimal transmission parameters to achieve higher secrecy. We show that even with the optimal parameters, secrecy is compromised if Eve is able to increase her number of antennas. To address this issue, we provide a comprehensive analysis of a new scheme called anti-eavesdropping channel estimation (ANECE) which prevents Eve from acquiring accurate channel estimations. We show that the usage of such scheme, makes it extremely hard for Eve to drive secrecy to zero. Numerical analyses and simulations are presented to support the arguments made in this study. We then derive a closed-form expression for asymptotic normalized instantaneous secrecy rate of our model. Based on the results of the asymptotic analysis, we propose an alternative less complex tractable optimization problem for the design of optimal transmission parameters to achieve higher secrecy. We show that even with the optimal parameters, secrecy is compromised if Eve is able to increase her number of antennas. To address this issue, we provide a comprehensive analysis of a new scheme called anti-eavesdropping channel estimation (ANECE) which prevents Eve from acquiring accurate channel estimations. We show that the usage of such scheme, makes it extremely hard for Eve to drive secrecy to zero. Numerical analyses and simulations are presented to support the arguments made in this study. We then derive a closed-form expression for asymptotic normalized instantaneous secrecy rate of our model. Based on the results of the asymptotic analysis, we propose an alternative less complex tractable optimization problem for the design of optimal transmission parameters to achieve higher secrecy. We show that even with the optimal parameters, secrecy is compromised if Eve is able to increase her number of antennas. To address this issue, we provide a comprehensive analysis of a new scheme called anti-eavesdropping channel estimation (ANECE) which prevents Eve from acquiring accurate channel estimations. We show that the usage of such scheme makes it extremely hard for Eve to drive secrecy to zero. Numerical analyses and simulations are presented to support the arguments made in this study.
Author: Ahmed A. Abd El-Latif Publisher: Springer Nature ISBN: 3030854280 Category : Computers Languages : en Pages : 283
Book Description
This book presents state-of-the-art research on security and privacy- preserving for IoT and 5G networks and applications. The accepted book chapters covered many themes, including traceability and tamper detection in IoT enabled waste management networks, secure Healthcare IoT Systems, data transfer accomplished by trustworthy nodes in cognitive radio, DDoS Attack Detection in Vehicular Ad-hoc Network (VANET) for 5G Networks, Mobile Edge-Cloud Computing, biometric authentication systems for IoT applications, and many other applications It aspires to provide a relevant reference for students, researchers, engineers, and professionals working in this particular area or those interested in grasping its diverse facets and exploring the latest advances on security and privacy- preserving for IoT and 5G networks.
Author: Lian, Shiguo Publisher: IGI Global ISBN: 1605662631 Category : Business & Economics Languages : en Pages : 616
Book Description
"This handbook is for both secure multimedia distribution researchers and also decision makers in obtaining a greater understanding of the concepts, issues, problems, trends, challenges and opportunities related to secure multimedia distribution"--Provided by publisher.
Author: Vasanth Raj P T
Author: Vasanth Raj P T
Author: K. Shankar
Author: Management Association, Information Resources
Author: Aboul Ella Hassanien
Author: Ahmed El Shafie
Author: Yan Zhang
Author: Mai Helmy Shaheen
Author: Reza Sohrabi
Author: Ahmed A. Abd El-Latif
Author: Lian, Shiguo