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Author : G. B Hawthorne (Jr)
Publisher :
ISBN 13 :
Total Pages : 191 pages
Book Rating : 4.:/5 (227 download)
Download or read book Performance of Communications Systems in the Presence of Interference written by G. B Hawthorne (Jr) and published by . This book was released on 1959 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shaw-Yueh Lin
Publisher :
ISBN 13 :
Total Pages : 51 pages
Book Rating : 4.:/5 (227 download)
Download or read book Degradation of the Performance of Communication Systems in the Presence of Interference written by Shaw-Yueh Lin and published by . This book was released on 1981 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship between measures of degradation (for digital systems: error probability; and for analog systems: articulation score) has been examined for the purpose of establishing quantitative criteria for satisfactory performance of various modulation systems in the presence of various types of interference. Two empirical relationships are proposed which, with adjustment of only two parameter values, provide good correspondence between signal-to-interference ratio and the performance measure for each case. (Author).
Author : Leonard Farber
Publisher :
ISBN 13 :
Total Pages : 73 pages
Book Rating : 4.:/5 (227 download)
Download or read book Performance of Voice Communications Systems in the Presence of Spread Spectrum Interference written by Leonard Farber and published by . This book was released on 1977 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer simulation model developed for determining the manner in which undesired spread spectrum signals affect the performance of conventional narrowband AM and FM voice communication systems is described. Direct-sequence, frequency-hopping and hybrid, frequency-hopping/direct-sequence, spread spectrum interference signals were modeled. Binary phase-shift keying and minimum-shift keying were included for the carrier modulation of the direct-sequence signals and the direct-sequence portion of the hybrid signals. In addition to the spread spectrum interference, pulsed interference and white Gaussian noise were modeled. Using articulation index as the measure of performance, comparisons are made between system performance for direct-sequence interference and white Gaussian noise. System performance for frequency-hopping or frequency-hopping/direct-sequence interference is compared with that for pulsed interference. (Author).
Author : Stefan Panic
Publisher : CRC Press
ISBN 13 : 1466508426
Total Pages : 263 pages
Book Rating : 4.4/5 (665 download)
Download or read book Fading and Interference Mitigation in Wireless Communications written by Stefan Panic and published by CRC Press. This book was released on 2013-12-11 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fading and Interference Mitigation in Wireless Communications will help readers stay up to date with recent developments in the performance analysis of space diversity reception over fading channels in the presence of cochannel interference. It presents a unified method for computing the performance of digital communication systems characterized by a variety of modulation and detection types and channel models. The book includes coverage of multichannel reception in various fading environments, influence of cochannel interference, and macrodiversity reception when channels are simultaneously affected by various types of fading and shadowing.
Author : Giridhar Venkat
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (74 download)
Download or read book Analysis of Wideband Interference in Spread Spectrum Communication Systems written by Giridhar Venkat and published by . This book was released on 2010 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increasing density of communications systems in the wireless spectrum, the ability for two communications systems to share the same frequency space will become critical. To accommodate this, it becomes necessary to understand the nature of impairments introduced when two systems share the same spectrum. Traditionally, the performance of a communication system is analyzed in the presence of random interfering noise (Gaussian, Rayleigh, etc.), specific channel impairments like multipath or fading, or narrowband interferers. This work will focus solely on the wideband interference of one communication system on another. Wireless communications systems are increasingly bifurcating along two primary paths: OFDM and Spread Spectrum. This thesis will analyze three parameters of an OFDM system to understand their impact on a forward-path, single-transmitter DSSS system, both analytically and empirically. Ultimately, the effect of these parameters on probability of error and a method to reject the interference of each system on the other will be presented.
Author : Marcelo S. Alencar
Publisher : Springer Nature
ISBN 13 : 3031120671
Total Pages : 472 pages
Book Rating : 4.0/5 (311 download)
Download or read book Communication Systems written by Marcelo S. Alencar and published by Springer Nature. This book was released on 2022-11-01 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents main concepts of mobile communication systems, both analog and digital Introduces concepts of probability, random variables and stochastic processes and their applications to the analysis of linear systems Includes five appendices covering Fourier series and transforms, GSM cellular systems and more
Author : Che-Ling Huang
Publisher :
ISBN 13 :
Total Pages : 274 pages
Book Rating : 4.:/5 (231 download)
Download or read book Performance Analysis of Chaos Communication Systems in the Presence of Noise and Interference written by Che-Ling Huang and published by . This book was released on 2007 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides an overview and comparison of various chaotic communication systems. It starts by examining methods of generating chaos signals, with six types of chaos generators being considered. Then, three earlier proposed chaos communication systems are introduced. The performance of these three systems, with a variety of chaos generators and additive white Gaussian channel (AWGN), is studied. The simulation results show that an increasing spreading factor degrades the performance of differential chaos shift keying (DCSK) and correlation delay shift keying (CDSK) at low signal-to-noise ratios. The effect of initial conditions in DCSK is analyzed as well, and it is found that they do not significantly affect the results.
Author :
Publisher :
ISBN 13 :
Total Pages : 892 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Veysel Erdogan
Publisher :
ISBN 13 : 9781423555957
Total Pages : 117 pages
Book Rating : 4.5/5 (559 download)
Download or read book A Simulation of MPSK Communications System Performance in the Presence of Wideband Noise and Co-Channel Interference written by Veysel Erdogan and published by . This book was released on 1998-12-01 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research is to model digital communications systems in the time domain using MATLAB Simulink and the Communications Toolbox and to determine and verify the system performance in the presence of additive noise and interference. While the theoretical results are available for the assessment of the influence of wideband gaussian noise on the performance of a digital communications system, determining the performance of a system in the presence of noise and interference requires a computer simulation. The time domain modeling allows the visualization of communication signals at various stages of transmitters and receivers and Monte Carlo type simulations to establish the bit error rates under realistic conditions (noise, interference) and for different values of transmitter/receiver parameters, different channel parameters and different types of interfering signals. It should be noted that the simulation does not account for system non-linearities.
Author : Deborah Kay Van Alphen
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (547 download)
Download or read book Performance Evaluation for Digital Communication Systems in Interference written by Deborah Kay Van Alphen and published by . This book was released on 1984 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance of Wireless Communication Systems in Ultra-wideband Interference and Non-Gaussian Noise written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The growing demand for high speed wireless applications and the scarcity of the spectral resources has necessitated the development of new concepts that enable more efficient utilization of the frequency spectrum. Ultra-wideband (UWB) is an emerging technology that is capable of utilizing the spectral resources more effectively by sharing the spectrum with other applications. This spectrum sharing however can potentially result in harmful interference from UWB systems to devices co-existing in the same frequency band. Therefore, in order to guarantee peaceful co-existence, the effects of UWB interference on co-existing systems have to be carefully analyzed. Towards this goal, in this thesis, we first study the effects of multi-band (MB) orthogonal frequency-division multiplexing (OFDM) UWB interference on a generic uncoded narrowband (NB) system. For this purpose, we develop analytical expressions for the amplitude probability distribution (APD) and the bit error rate (BER) performance of the NB system in the presence of MB-OFDM interference. We use the obtained results to assess the accuracy of the Gaussian approximation (GA) for MB-OFDM UWB interference. We show that for most channel models and signal bandwidths the GA is unable to accurately predict the NB system performance and the exact BER analysis has to be used to obtain meaningful results. We also analyze the effects of UWB interference in a more general framework that allows us to study the impact of general types of non-Gaussian noise and interference on generic uncoded victim systems. Specifically, we present a unified asymptotic symbol error rate (SER) analysis of linearly modulated systems impaired by fading and generic non- Gaussian noise and interference. Our analysis also encompasses diversity reception with equal gain and selection combining and is extended to binary orthogonal modulation. The obtained asymptotic results show that for high signal-to-noise ratios (SNRs) the SER of the victim system.
Author : United States. Federal Communications Commission
Publisher :
ISBN 13 :
Total Pages : 1228 pages
Book Rating : 4.3/5 (129 download)
Download or read book Federal Communications Commission Reports written by United States. Federal Communications Commission and published by . This book was released on 1981 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David Middleton
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.0/5 ( download)
Download or read book Performance of Telecommunications Systems in the Spectral-use Environment written by David Middleton and published by . This book was released on 1979 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Huu Tue Huynh
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (112 download)
Download or read book Studies of Systems-related and Inherent Defects in Communications Networks written by Huu Tue Huynh and published by . This book was released on 1985 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The world of telecommunications is developing at a breathtaking rate. In the space of a century, telecommunications networks have become one of our most complex creations, with ramifications that extend worldwide. Up until the 1960s, over 90 per cent of telecommunications systems operated on the old principles of analogue communication; in particular, microwave systems are often of the FDM/FM type. Since then, of course, the new digital technology has become increasingly prevalent"--Introduction, page [1].
Author :
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 (946 download)
Download or read book Wireless Communications Systems written by and published by . This book was released on 2016 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Julian Zhishen Cheng
Publisher :
ISBN 13 :
Total Pages : 356 pages
Book Rating : 4.:/5 (234 download)
Download or read book Performance Analysis of Digital Communications Systems with Fading and Interference written by Julian Zhishen Cheng and published by . This book was released on 2003 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Savo G. Glisic
Publisher : John Wiley & Sons
ISBN 13 : 9780470512876
Total Pages : 890 pages
Book Rating : 4.5/5 (128 download)
Download or read book Advanced Wireless Communications written by Savo G. Glisic and published by John Wiley & Sons. This book was released on 2007-06-13 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fully revised and updated version of the successful "AdvancedWireless Communications" Wireless communications continue to attract the attention ofboth research community and industry. Since the first edition waspublished significant research and industry activities have broughtthe fourth generation (4G) of wireless communications systemscloser to implementation and standardization. "Advanced Wireless Communications" continues to provide acomparative study of enabling technologies for 4G. This secondedition has been revised and updated and now includes additionalinformation on the components of common air interface, includingthe area of space time coding , multicarrier modulation especiallyOFDM, MIMO, cognitive radio and cooperative transmission. Ideal for students and engineers in research and development inthe field of wireless communications, the second edition ofAdvanced Wireless Communications also gives an understanding tocurrent approaches for engineers in telecomm operators, governmentand regulatory institutions. New features include: Brand new chapter covering linear precoding in MIMO channelsbased on convex optimization theory. Material based on game theory modelling encompassing problemsof adjacent cell interference, flexible spectra sharing andcooperation between the nodes in ad hoc networks. Presents and discusses the latest schemes for interferencesuppression in ultra wide band (UWB) cognitive systems. Discusses the cooperative transmission and more details onpositioning.
