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Interference Cancellation Algorithms For Detecting Ds Cdma Signals And Separating Combined Heart Rate Signals
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Book Synopsis Interference Cancellation Algorithms for Detecting DS/CDMA Signals and Separating Combined Heart-rate Signals by : Kuei-Chiang Lai
Download or read book Interference Cancellation Algorithms for Detecting DS/CDMA Signals and Separating Combined Heart-rate Signals written by Kuei-Chiang Lai and published by . This book was released on 2001 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of Interference cancellation Receiver for CDMA with MIMO system by : Dr.P.Sreesudha,
Download or read book Design of Interference cancellation Receiver for CDMA with MIMO system written by Dr.P.Sreesudha, and published by Archers & Elevators Publishing House. This book was released on with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Multiuser Detection of DS-CDMA Signals Using Parallel Interference Cancellation in Wireless Communications by : Mohsen Ghotbi
Download or read book Multiuser Detection of DS-CDMA Signals Using Parallel Interference Cancellation in Wireless Communications written by Mohsen Ghotbi and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2002 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structures and algorithms for multiuser detection and interference supression in ds-cdma systems by :
Download or read book Structures and algorithms for multiuser detection and interference supression in ds-cdma systems written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Esta tese apresenta novas estruturas e algoritmos para detecção multiusuário e supressão de interferência em sistemas DS-CDMA. São investigadas estruturas baseadas em redes neurais recorrentes para projeto de receptores com decisão realimentada e desenvolvidos algoritmos adaptativospara combater a interferência de múltiplo acesso e a interferência entre símbolos. Novos algoritmos baseados na minimização da taxa de erro de bits são examinados e generalizados para esquemas de detecção com cancelamento de interferência. Para situações onde uma seqüência de treinamento não é disponibilizada, é considerado um novo critério de projeto às cegas de receptores com restrições lineares baseado na função custo módulo constante. Algoritmos adaptativos às cegas baseados neste novo critério são usados para estimar os parâmetros de um receptor linear e do canal decomunicações. São também desenvolvidos novos mecanismos às cegas de ajuste do passo para algoritmos do tipo gradiente estocástico em receptores lineares com base no critério de mínima variância com restrições. Com base nos critérios de mínima variância e módulo constante com restrições, sãodesenvolvidos critérios de projeto às cegas para receptores com decisão realimentada e propostos algoritmos adaptativos para essas estruturas. Um novo esquema de cancelamento sucessivo de interferência baseado no conceito de arbitragem é proposto e incorporado a uma estrutura de recepção com decisão realimentada para o enlace reverso. Em seguida, o novo esquema decancelamento de interferência é combinado com uma estrutura iterativa queemprega múltiplos estágios, resultando em melhores estimativas do receptore um desempenho uniforme para os usuários. Finalmente, são apresentadasnovas estruturas de recepção com posto reduzido, baseadas em filtros FIRinterpolados e interpoladores variantes no tempo, e desenvolvidos algoritmosadaptativos às cegas e supervisionados para o novo esquema.
Book Synopsis An Application of PearsonICA to DS-CDMA Detection by : S. D. Parmar
Download or read book An Application of PearsonICA to DS-CDMA Detection written by S. D. Parmar and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Commercial cellular networks, like the systems based on Direct Sequence-Code Division Multiple Access (DS-CDMA), face many types of interferences such as multiuser interference inside each sector in a cell to interoperate interference. While unintentional jamming can be present due to coexisting systems at the same band, intentional jamming arises mainly in military applications. Independent Component Analysis (ICA) has been used as an advanced preprocessing tool for blind suppression of interfering signals in DS-CDMA communication systems. The role of ICA is to provide an interference-mitigated signal to the conventional detection. This paper evaluates the performance of the PearsonICA algorithm to solve the symbol estimation problem of multiusers in a DS-CDMA communication system. The main focus is on blind separation of convolved CDMA mixture and on improvement of the downlink symbol estimation. The results of the numerical experiments are compared with those obtained by the Single User Detection (SUD) receiver, the ICA detector and the combined SUD-ICA detector.
Book Synopsis Parallel Interference Cancellation Multiuser Detectors for DS-CDMA Communication Systems by : Feng Liu
Download or read book Parallel Interference Cancellation Multiuser Detectors for DS-CDMA Communication Systems written by Feng Liu and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A nonlinear sub-optimal multiuser detector in the form of parallel interference cancellation (PIC) has been studied. The main objective of this thesis is to develop an analytical model for PIC performance analysis and propose new near-optimum approach. Since the exact performance analysis of PIC is difficult to derive due to its nonlinear decision function, previous work tends to adopt computer simulation method or evaluate through Gaussian approximation (GA) method. For PIC detector, the GA method may not apply since there may exist a dominate interference signal. In addition, the central limit theorem is not applicable to model the residual MAI in the case of PIC due to its own structural property. We develop an analytical model to derive the exact BER performance in the case of two users, and extend the method to approximate cases when moderate-to-high SINR can be encountered. We propose a gradient adaptive parallel interference cancellation detector and investigate its performance. The presented PIC detector is equipped with a set of adaptive weights which are adjusted through a new proposed gradient adaptive step size-LMS (GASS-LMS) algorithm to reduce the cost of wrong interference estimation as existed in the conventional PIC. The initial state is deliberately set based on the function of probability of error to reflect the reliability of the tentative decision from the previous stage. While the most previous work on MUD are restricted to cases where there is no intersymbol interference (ISI), we consider the problem of joint detection of MAI and ISI, which is crucial to enhance the performance of the third and future generation systems with high data rate applications. Simulation results are provided to show that our low complexity joint detector can perform very well, yielding the bit error rate (BER) close to the non-ISI single-user error rate.
Book Synopsis Multi-Carrier and Spread Spectrum Systems by : K. Fazel
Download or read book Multi-Carrier and Spread Spectrum Systems written by K. Fazel and published by John Wiley & Sons. This book was released on 2004-02-06 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Frequency spectrum is a limited and valuable resource for wireless communications. A good example can be observed among network operators in Europe for the prices to pay for UMTS-frequency bands. Therefore, the first goal when designing future wireless communication systems (e.g. 4G - fourth generation) has to be the increase in spectral efficiency. The development in digital communications in the past years has enabled efficient modulation and coding techniques for robust and spectral efficient data, speech, audio and video transmission. These are the multi-carrier modulation (e.g. OFDM) and the spread spectrum technique (e.g. DS-CDMA), where OFDM was chosen for broadcast applications (DVB, DAB) as well as for broadband wireless indoor standards (ETSI HIPERLAN-II, IEEE-802.11) and the DS-CDMA was selected in mobile communications (IS-95, third generation mobile radio systems world wide, UMTS/IMT 2000). Since 1993 various combinations of multi-carrier (MC) modulation and the spread spectrum (SS) technique have been introduced and the field of MC-SS communications has become an independent and important research topic with increasing activities. New application fields have been proposed such as high rate cellular mobile, high rate wireless indoor and LMDS. It has been shown that MC-SS offers the high spectral efficiency, robustness and flexibility that is required for the next generation systems. Meanwhile, different alternative hybrid schemes such as OFDM/OFDMA, MC-TDMA, etc. have been deeply analysed and adopted in different international standards (ETSI-BRAN, IEEE-802 & MMAC). Multi-Carrier & Spread-Spectrum: Analysis of Hybrid Air Interfaces draws together all of the above mentioned hybrid schemes therefore providing a greatly needed resource for system engineers, telecommunication designers and researchers in order to enable them to develop, build and deploy several schemes based on MC-transmission for the next generation systems (which will be an integration of broadband multimedia services covering both 4G mobile and fixed wireless systems). * Offers a complete treatment of multi-carrier, spread-spectrum (SS) and time division multiplexing (TDM) techniques * Provides an in-depth insight into hybrid multiple access techniques based on multi-carrier (MC) transmission * Presents numerous hybrid multiple access and air interface architectures including OFDM/CDMA, MC-CDMA, MC-DS-CDMA and MT-CDMA * Covers new techniques such as space-time coding and software radio Telecommunications engineers, hardware & software system designers and researchers as well as students, lecturers and technicians will all find this an invaluable addition to their bookshelf.
Book Synopsis Spread Spectrum Techniques by : Robert C. Dixon
Download or read book Spread Spectrum Techniques written by Robert C. Dixon and published by . This book was released on 1976-11-01 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Mobile Communications Handbook by : Jerry D. Gibson
Download or read book The Mobile Communications Handbook written by Jerry D. Gibson and published by Springer Science & Business Media. This book was released on 1999-04 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a single volume, this handbook covers the entire field -- from principles of analog and digital communications to cordless telephones, wireless LANs, and international technology standards. The tremendous scope of this second edition ensures that its serving as the primary reference for every aspect of mobile communications. Details and references follow preliminary discussions, providing readers with the most accurate information available on the particular topic.
Book Synopsis Multi-Carrier Spread-Spectrum by : Khaled Fazel
Download or read book Multi-Carrier Spread-Spectrum written by Khaled Fazel and published by Springer. This book was released on 2014-11-30 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: I GENERAL ISSUES Experiments on Space Diversity Effect in MIMO Channel Transmission with Maximum Data Rate of 1 Gbps in Downlink OFDM Radio Access; K. Higuchi, H. Taoka, N. Maeda, M. Sawahashi (NTT DoCoMo, Japan) Reduced-complexity Maximum-likelihood Detection in Multiple-antenna-aided Multicarrier Systems; J. Akthman, L. Hanzo (University of Southampton, UK) On Coding for OFDM and the Broadcast Channel; M. Bossert (University of Ulm, Germany) Adaptivity in MC-CDMA Systems; I. Cosovic (German Aerospace Center (DLR), Germany), S. Kaiser (DoCoMo Euro-Labs, Germany) Parameter Estimation for Interference Cancellation in Power-controlled MC-CDMA Downlink Transmissions; M. Morelli, L. Sanguinetti, U. Mengali (University of Pisa, Italy) Performance Evaluation and Parameter Optimization of MC-CDMA; M. Guenach, H. Steendam (Ghent University, Belgium) A Novel Algorithm of Inter-subchannel Interference Cancellation for OFDM Systems; M.-X. Chang (National Cheng-Kung University, Taiwan) Comparative Multicarrier System Performance in Jamming and Fading; D. W. Matolak, W. Xiong, I. Sen (Ohio University, USA) CDMA in the Context of OFDM and SC/FDE - A Comparative Study; H. Witschnig (Philips, Austria), M. Huemer (University of Erlangen, Germany), R. Stuhlberger, A. Springer (University of Linz, Austria) II CELLULAR ASPECTS Impact of the Intercell Interference in DL MC-CDMA Systems; X. G. Doukopoulos, R. Legouable (France Telecom R&D, France) Quantifying the Impact of the MC-CDMA Physical Layer Algorithms on the Downlink Capacity in a Multi-cellular Environment; A.-M. Mourad, A. Guéguen (Mitsubishi Electric ITE-TCL, France), R. Pyndiah (Ecole Nationale Supérieure desTélécommunications de Bretagne, France) Radio Resource Management for MC-CDMA over Correlated Rayleigh Fading Channels; S. Plass, A. Dammann (German Aerospace Center (DLR), Germany) Throughput of Heterogeneous Multi-Cell Multi-User MIMO-OFDM Systems; B. Mielczarek, W. A. Krzymien (TRLabs/University of Alberta, Canada) Real-link Performance of a SS-MC-MA High Frequency Radio Modem; H. Santana-Sosa (Universidad des Las Palmas de Gran Canaria, Spain), I. Raos, S. Zazo-Bello (Universidad Politecnica de Madrid, Spain), I. A. Pérez-Álvarez, J. López-Pérez (Universida des Las Palmas de Gran Canaria, Spain) III SPREADING AND DETECTION Analysis of Iterative Successive Interference Cancellation in SC-CDMA Systems; P. Weitkemper, V. Kuehn, K.-D. Kammeyer (University of Bremen, Germany) Bandwidth and Power Efficient Digital Transmission using Sets of Orthogonal Spreading Codes; W. G. Teich, P. Kaim, J. Lindner (University of Ulm, Germany) Simplified Realization of Pseudo-Orthogonal Carrier Interferometry OFDM by FFT Algorithm; K. Anwar, M. Saito, T. Hara, M. Okada, H. Yamamoto (Nara Institute of Science and Technology, Japan) Exploiting Rotated Spreading Features for CDM-OFDMA; R. Raulefs, A. Dammann, S. Ayaz (German Aerospace Center (DLR), Germany) Detection of Pre-coded OFDM by Recovering Symbols on Degraded Carriers; S. Tamura, M. Fujii, M. Itami, K. Itoh (Tokyo University of Science, Japan) Semi-blind Multiuser Detection in Zero-padded OFDM-CDMA Systems; R. Boloix-Tortosa, F. J. Payan-Somet, J. J. Murillo-Fuentes (Universidad de Sevilla, Spain) A Study on Adaptive Successive Detection using M Algorithm based on ML Criterion for Down-link MC-CDMA Systems; Y. Morishige, M. Fujii, M. Itami, K.
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1860 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Signal Processing for Mobile Communications Handbook by : Mohamed Ibnkahla
Download or read book Signal Processing for Mobile Communications Handbook written by Mohamed Ibnkahla and published by CRC Press. This book was released on 2004-08-16 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, a wealth of research has emerged addressing various aspects of mobile communications signal processing. New applications and services are continually arising, and future mobile communications offer new opportunities and exciting challenges for signal processing. The Signal Processing for Mobile Communications Handbook provi
Book Synopsis Advances in Signal Processing and Intelligent Recognition Systems by : Sabu M. Thampi
Download or read book Advances in Signal Processing and Intelligent Recognition Systems written by Sabu M. Thampi and published by Springer Nature. This book was released on 2020-04-30 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 5th International Symposium on Advances in Signal Processing and Intelligent Recognition Systems, SIRS 2019, held in Trivandrum, India, in December 2019. The 19 revised full papers and 8 revised short papers presented were carefully reviewed and selected from 63 submissions. The papers cover wide research fields including information retrieval, human-computer interaction (HCI), information extraction, speech recognition.
Book Synopsis Principles of Modern Radar by : Mark A. Richards
Download or read book Principles of Modern Radar written by Mark A. Richards and published by SciTech Publishing. This book was released on 2023-02-17 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Principles of Modern Radar: Basic Principles is a comprehensive text for courses in radar systems and technology, a professional training textbook for formal in-house courses and for new hires; a reference for ongoing study following a radar short course and a self-study and professional reference book.
Book Synopsis Wireless Communications & Networking by : Vijay Garg
Download or read book Wireless Communications & Networking written by Vijay Garg and published by Elsevier. This book was released on 2010-07-28 with total page 931 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides comprehensive coverage of mobile data networking and mobile communications under a single cover for diverse audiences including managers, practicing engineers, and students who need to understand this industry. In the last two decades, many books have been written on the subject of wireless communications and networking. However, mobile data networking and mobile communications were not fully addressed in a unified fashion. This book fills that gap in the literature and is written to provide essentials of wireless communications and wireless networking, including Wireless Personal Area Networks (WPAN), Wireless Local Area Networks (WLAN), and Wireless Wide Area Networks (WWAN). The first ten chapters of the book focus on the fundamentals that are required to study mobile data networking and mobile communications. Numerous solved examples have been included to show applications of theoretical concepts. In addition, unsolved problems are given at the end of each chapter for practice. (A solutions manual will be available.)After introducing fundamental concepts, the book focuses on mobile networking aspects. Four chapters are devoted on the discussion of WPAN, WLAN, WWAN, and internetworking between WLAN and WWAN. Remaining seven chapters deal with other aspects of mobile communications such as mobility management, security, cellular network planning, and 4G systems.A unique feature of this book that is missing in most of the available books on wireless communications and networking is a balance between the theoretical and practical concepts. Moreover, this book can be used to teach a one/two semester course in mobile data networking and mobile communications to ECE and CS students.*Details the essentials of Wireless Personal Area Networks(WPAN), Wireless Local Are Networks (WLAN), and Wireless Wide Area Networks (WWAN)*Comprehensive and up-to-date coverage including the latest in standards and 4G technology*Suitable for classroom use in senior/first year grad level courses. Solutions manual and other instructor support available
Book Synopsis Communication Systems Engineering by : John G. Proakis
Download or read book Communication Systems Engineering written by John G. Proakis and published by . This book was released on 2002 with total page 801 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorough coverage of basic digital communication system principles ensures that readers are exposed to all basic relevant topics in digital communication system design. The use of CD player and JPEG image coding standard as examples of systems that employ modern communication principles allows readers to relate the theory to practical systems. Over 180 worked-out examples throughout the book aids readers in understanding basic concepts. Over 480 problems involving applications to practical systems such as satellite communications systems, ionospheric channels, and mobile radio channels gives readers ample opportunity to practice the concepts they have just learned. With an emphasis on digital communications, Communication Systems Engineering, Second Edition introduces the basic principles underlying the analysis and design of communication systems. In addition, this book gives a solid introduction to analog communications and a review of important mathematical foundation topics. New material has been added on wireless communication systems—GSM and CDMA/IS-94; turbo codes and iterative decoding; multicarrier (OFDM) systems; multiple antenna systems. Includes thorough coverage of basic digital communication system principles—including source coding, channel coding, baseband and carrier modulation, channel distortion, channel equalization, synchronization, and wireless communications. Includes basic coverage of analog modulation such as amplitude modulation, phase modulation, and frequency modulation as well as demodulation methods. For use as a reference for electrical engineers for all basic relevant topics in digital communication system design.
