Performance Analysis Of Noncoherent Slow Frequency Hopped Spread Spectrum Communications Over Specular Multipath Fading Channels
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Performance Analysis Of Noncoherent Slow Frequency Hopped Spread Spectrum Communications Over Specular Multipath Fading Channels
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Author : Kuo Tung Chiang
language : en
Publisher:
Release Date : 1986
Performance Analysis Of Noncoherent Slow Frequency Hopped Spread Spectrum Communications Over Specular Multipath Fading Channels written by Kuo Tung Chiang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.
Effects Of Specular Multipath Fading On Noncoherent Direct Sequence Spread Spectrum Communications
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Author : E. A. Geraniotis
language : en
Publisher:
Release Date : 1982
Effects Of Specular Multipath Fading On Noncoherent Direct Sequence Spread Spectrum Communications written by E. A. Geraniotis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with categories.
Performance Analysis Of A Coherent Frequency Hopped Spread Spectrum System With Multipath Channel Equalization In The Presence Of Jamming
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Author : Valentin Lupu
language : en
Publisher:
Release Date : 1989
Performance Analysis Of A Coherent Frequency Hopped Spread Spectrum System With Multipath Channel Equalization In The Presence Of Jamming written by Valentin Lupu and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Equalizers (Electronics) categories.
Spread Spectrum Communications Handbook Electronic Edition
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Author : Marvin K. Simon
language : en
Publisher: McGraw Hill Professional
Release Date : 2001-09-22
Spread Spectrum Communications Handbook Electronic Edition written by Marvin K. Simon and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001-09-22 with Technology & Engineering categories.
The acknowledged Spread-Spectrum Bible the most complete reference in the field! INCLUDESCD-ROM CONTAININGTHE ENTIRE BOOKIN FULLY-SEARCHABLE PDF Spread-spectrum systems have found important commercial applications in CDMA cellular networks and wireless personal communication networks. Communications engineers and technicians now have ready access to a wealth of spread-spectrum information in this exhaustive handbook the most comprehensive and authoritative compendium on spread-spectrum systems available anywhere. Written by recognized authorities in the field, the Handbook presents both theoretical basics and practical applications, providing succinct, results-oriented solutions to engineering problems. Starting with basic concepts and system models, the book covers: Anti-jamming communication systems Coherent direct-sequence systems Non-coherent frequency-hopped systems Coherent and differentially coherent modulation techniques Pseudonoise acquistion and tracking in direct sequence receivers Time and frequency synchronization of frequency-hopped receivers Low probability of intercept communications In addition, it offers an in-depth look at multiple access communications and positioning systems and discusses the growth of spread-spectrum applications. INCLUDES CD-ROM CONTAINING THE ENTIRE BOOK IN FULLY SEARCHABLE PDF
Research In Progress
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Author :
language : en
Publisher:
Release Date : 1982
Research In Progress written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Military research categories.
Perspectives In Spread Spectrum
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Author : Amer A. Hassan
language : en
Publisher: Springer Science & Business Media
Release Date : 1998-08-31
Perspectives In Spread Spectrum written by Amer A. Hassan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-08-31 with Technology & Engineering categories.
Perspectives in Spread Spectrum brings together studies and recent work on six exciting topics from the spread spectrum arts. The book gives a wide, collective view of trends, ideas, and techniques in the spread spectrum discipline, due to the authors' extensive work on spread spectrum techniques and applications from different vantage points. The inexorable march of electronics towards ever faster, ever smaller, and ever more powerful electronic and optical circuitry has wrought, and will continue to enable, profound changes in the spread spectrum arts, by allowing increasingly complex signalling waveforms and statistical tests to be implemented as the theory beyond spread spectrum continues to evolve. Perspectives in Spread Spectrum is divided into six chapters. The first chapter deals with sequence spreading design. There is not a single metric for design of spreading sequences; rather, the design is ideally tailored to the specific scenario of usage. This chapter delves into recent and very promising synthesis work. The second chapter deals with OFDM techniques. As channels become wider and trans-channel fading (or jamming) becomes frequency selective across the band, OFDM techniques may provide a powerful alternative design perspective. The third chapter is a generalization of the venerable Walsh functions. A new modulation scheme, Geometric Harmonic Modulation, GHM for short, is reviewed and characterized as a form of OFDM. From GHM, a further generalization of the Walsh functions is derived for non-binary signalling. The fourth chapter is concerned with some new and exciting results regarding the follower jammer paradigm. A counter-countermeasure technique is reviewed, notable for its counterintuitive characteristic which can be understood from a simple yet elegant game framework. The fifth chapter recounts some results pertaining to random coding for an optical spread spectrum link. The technique is based on laser speckle statistics and uses a coherent array of spatial light modulators at the transmitter but allows the receiver to be realized as a spatially distributed radiometric and therefore incoherent structure. The sixth and final chapter looks at an important and interesting application of spread spectrum to accurately locate a wideband, ‘bent pipe’, satellite transponder. It is, in a strong sense, an inverted GPS technique. Perspectives in Spread Spectrum serves as an excellent reference and source of ideas for further research, and may be used as a text for advanced courses on the topic.
Spread Spectrum Communications
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Author : Marvin K. Simon
language : en
Publisher: Computer Science Press, Incorporated
Release Date : 1985
Spread Spectrum Communications written by Marvin K. Simon and has been published by Computer Science Press, Incorporated this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Technology & Engineering categories.
Performance Analysis Of Direct Sequence Spread Spectrum Multiple Access Communication Via Fading Channels
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Author : David Edward Borth
language : en
Publisher:
Release Date : 1979
Performance Analysis Of Direct Sequence Spread Spectrum Multiple Access Communication Via Fading Channels written by David Edward Borth and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with categories.
The performance of biphase direct-sequence spread-spectrum multiple-access (SSMA) communication for a general class of fading channels is investigated. The channels considered are those for which the channel output consists of a strong stable specular signal plus a faded version of this signal. Such channels are the result of a transmission medium which gives rise to a major stable communication path and a number of additional weaker communication paths. The fading channel is modeled as a general is modeled as a general wide-sense-stationary uncorrelated-scattering (WSSUS) channel -- a model which is general enough to exhibit both time and frequency selectivity and to impose no restrictions on the fading rate. A discussion of the important parameters of the WSSUS channel is given and two important classes of WSSUS channels are developed from the general fading channel model; time-selective fading channels and frequency-selective fading channels. In analyzing the performance of direct-sequence SSMA communications via fading channels two measures of system performance that are considered are average signal-to-noise ratio at the receiver output and the average probability of error. (Author).
Performance Study Of Hybrid Spread Spectrum Techniques
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Author :
language : en
Publisher:
Release Date : 2005
Performance Study Of Hybrid Spread Spectrum Techniques written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
This thesis focuses on the performance analysis of hybrid direct sequence/slow frequency hopping (DS/SFH) and hybrid direct sequence/fast frequency hopping (DS/FFH) systems under multi-user interference and Rayleigh fading. First, we analyze the performance of direct sequence spread spectrum (DSSS), slow frequency hopping (SFH) and fast frequency hopping (FFH) systems for varying processing gains under interference environment assuming equal bandwidth constraint with Binary Phase Shift Keying (BPSK) modulation and synchronous system. After thorough literature survey, we show that hybrid DS/FFH systems outperform both SFH and hybrid DS/SFH systems under Rayleigh fading and multi-user interference. Also, both hybrid DS/SFH and hybrid DS/FFH show performance improvement with increasing spreading factor and decreasing number of hopping frequencies.
Direct Sequence Spread Spectrum Performance In A Multipath Fading Environment
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Author :
language : en
Publisher:
Release Date : 1993
Direct Sequence Spread Spectrum Performance In A Multipath Fading Environment written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
The performance of coherent direct-sequence spread-spectrum communication systems with specular multipath fading is analyzed in terms of average probability of error. Approximations to such are based on the characteristic-function method. The probability mass function of the correlation receiver output is also derived with this approach. Numerical results are presented for various multipath environments with deterministic gain coefficients and channel coding applications. Spread-spectrum communications, Multipath fading.