EBookClubs

Read Books & Download eBooks Full Online

EBookClubs

Read Books & Download eBooks Full Online

Book Performance Evaluation of DS CDMA System Using Rake Receiver

Download or read book Performance Evaluation of DS CDMA System Using Rake Receiver written by Jun Kodaira and published by . This book was released on 2000 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Performance Evaluation of Different DS CDMA Receivers Using Chaotic Sequences

Download or read book Performance Evaluation of Different DS CDMA Receivers Using Chaotic Sequences written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct sequence-code division multiple access (DS-CDMA) technique is used in cellular systems where users in the cell are separated from each other with their unique spreading codes. In recent times DS-CDMA has been used extensively. These systems suffers from multiple access interference (MAI) due to other users transmitting in the cell, channel inter symbol interference (ISI) due to multipath nature of channels in presence of additive white Gaussian noise(AWGN). Spreading codes play an important role in multiple access capacity of DS-CDMA system. M-sequences, gold sequences etc., has been traditionally used as spreading codes in DS-CDMA. These sequences are generated by shift registers and periodic in nature. So these sequences are less in number and also limits the security. This thesis presents an investigation on use of new type of sequences called chaotic sequences for DS-CDMA system. These sequences are generated by chaotic maps. First of all, chaotic sequences are easy to generate and store. Only a few parameters and functions are needed even for very long sequences. In addition, an enormous number of different sequences can be generated simply by changing its initial condition. . Chaotic sequences are deterministic, reproducible, uncorrelated and random-like, which can be very helpful in enhancing the security of transmission in communication. This Thesis investigates the performance of chaotic sequences in DS-CDMA communication systems using various receiver techniques. Extensive simulation studies demonstrate the performance of the different linear and nonlinear DS-CDMA receivers like RAKE receiver, matched filter (MF) receiver, minimum mean square error (MMSE) receiver and Volterra receiver using chaotic sequences and the performance have been compared with gold sequences.

Book Performance Evaluation of DS CDMA Receivers Using Genetic Algorithm

Download or read book Performance Evaluation of DS CDMA Receivers Using Genetic Algorithm written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Direct sequence-code division multiple access (DS-CDMA) technique is used in cellular systems where users in the cell are separated from each other with their unique spreading codes. In recent times DS-CDMA has been used extensively. These systems suffers from multiple access interference (MAI) due to other users transmitting in the cell, channel inter symbol interference (ISI) due to multipath nature of channels in presence of additive white Gaussian noise(AWGN). Spreading codes play an important role in multiple access capacity of DS-CDMA system. M-sequences, gold sequences etc., has been traditionally used as spreading codes in DS-CDMA. These sequences are generated by shift registers and periodic in nature. So these sequences are less in number and also limits the security. This thesis presents an investigation on use of new type of DS CDMA receiver called Genetic Algorithm based DS-CDMA receiver. Genetic Algorithm is robust optimization technique and does not fall into local minima hence this gives better weight optimization of any system. This Thesis investigates the performance of GA based DS-CDMA communication using gold code sequences. Extensive simulation studies demonstrate the performance of the different linear and nonlinear DS-CDMA receivers like RAKE receiver, matched filter (MF) receiver, minimum mean square error (MMSE) receiver using gold sequences and the performance have been compared with GA based receiver.

Book Wireless Personal Communications

Download or read book Wireless Personal Communications written by William H. Tranter and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless Personal Communications: Bluetooth Tutorial and Other Technologies presents a broad range of topics in wireless communications, including perspectives from both industry and academia. The book serves as a reflection of emerging technologies in wireless communications and features papers from world-renowned authors on the subject. A new tutorial on the emerging Bluetooth technology is also presented. Wireless Personal Communications: Bluetooth Tutorial and Other Technologies serves as an excellent reference and may be used as a text for advanced courses on the subject. It is an essential tool for graduate students, postgraduate researchers, academics, and anyone working in the research aspect of the wireless communications industry.

Book Azienda segni distintivi concorrenza

Download or read book Azienda segni distintivi concorrenza written by and published by . This book was released on 1973 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Nonlinear Dynamics Of Electronic Systems Proceedings Of The Ieee Workshop

Download or read book Nonlinear Dynamics Of Electronic Systems Proceedings Of The Ieee Workshop written by Gianluca Mazzini and published by World Scientific. This book was released on 2000-05-08 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects together state-of-the-art contributions to the IEEE workshop on Nonlinear Dynamics of Electronic Systems.

Book Proceedings of the IEEE Workshop on Nonlinear Dynamics of Electronic Systems

Download or read book Proceedings of the IEEE Workshop on Nonlinear Dynamics of Electronic Systems written by Gianluca Setti and published by World Scientific. This book was released on 2000 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume collects together state-of-the-art contributions to the IEEE workshop on Nonlinear Dynamics of Electronic Systems.

Book Adaptive Signal Processing in Wireless Communications

Download or read book Adaptive Signal Processing in Wireless Communications written by Mohamed Ibnkahla and published by CRC Press. This book was released on 2017-12-19 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adaptive techniques play a key role in modern wireless communication systems. The concept of adaptation is emphasized in the Adaptation in Wireless Communications Series through a unified framework across all layers of the wireless protocol stack ranging from the physical layer to the application layer, and from cellular systems to next-generation wireless networks. This specific volume, Adaptive Signal Processing in Wireless Communications is devoted to adaptation in the physical layer. It gives an in-depth survey of adaptive signal processing techniques used in current and future generations of wireless communication systems. Featuring the work of leading international experts, it covers adaptive channel modeling, identification and equalization, adaptive modulation and coding, adaptive multiple-input-multiple-output (MIMO) systems, and cooperative diversity. It also addresses other important aspects of adaptation in wireless communications such as hardware implementation, reconfigurable processing, and cognitive radio. A second volume in the series, Adaptation and Cross-layer Design in Wireless Networks(cat no.46039) is devoted to adaptation in the data link, network, and application layers.

Book Performance of DS CDMA Communication Systems with Generalized Offset QPSK Modulation

Download or read book Performance of DS CDMA Communication Systems with Generalized Offset QPSK Modulation written by Mohamed Adnen Landolsi and published by . This book was released on 1996 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book RF System Design of Transceivers for Wireless Communications

Download or read book RF System Design of Transceivers for Wireless Communications written by Qizheng Gu and published by Springer Science & Business Media. This book was released on 2006-05-03 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is for RF Engineers and, in particular, those engineers focusing mostly on RF systems and RFIC design. The author develops systematic methods for RF systems design, complete with a comprehensive set of design formulas. Its focus on mobile station transmitter and receiver system design also applies to transceiver design of other wireless systems such as WLAN. This comprehensive reference work covers a wide range of topics from general principles of communication theory, as it applies to digital radio designs to specific examples on implementing multimode mobile systems.

Book Security Design and Architecture for Broadband and Wireless Network Technologies

Download or read book Security Design and Architecture for Broadband and Wireless Network Technologies written by Chilamkurti, Naveen and published by IGI Global. This book was released on 2013-04-30 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: While wireless technologies continue to provide an array of new challenges and multi-domain applications for business processes and solutions, there still remains to be a comprehensive understanding of its various dimensions and environments. Security, Design, and Architecture for Broadband and Wireless Network Technologies provides a discussion on the latest research achievements in wireless networks and broadband technology. Highlighting new trends, applications, developments, and standards, this book is essential for next generation researchers and practitioners in the ICT field.

Book Performance Evaluation of DS CDMA Over Multipath Fading Links Using Importance Sampling

Download or read book Performance Evaluation of DS CDMA Over Multipath Fading Links Using Importance Sampling written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: HKUST Call Number: Thesis ELEC 1996 Halder.