Download or read book Comparison of Performance of Digital Modulation Techniques in the Presence of Adjacent Channel Interference written by Laurence B. Milstein and published by . This book was released on 1982 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Avoiding Effects of OFDM Adjacent Channel Interference by Using Combinations of Modulation Schemes written by Le Tien Anh and published by GRIN Verlag. This book was released on 2009-05 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2008 in the subject Engineering - Communication Technology, grade: erfolgreich bestanden, Keio University (Graduate school of Science and Technology - School of Science for Open and Environmental Systems), language: English, abstract: Non-orthogonality among adjacent OFDM channels creates OFDM adjacent channel interference and it heavily affects the entire system's performance. Conventional methods to avoid OFDM adjacent channel interference are not only insufficient but also are wasting a lot of frequency resources. In this research, a method using combinations of modulation schemes is proposed to avoid effects of OFDM adjacent channel interference. It can be obtained by modulating the sub-carriers at the outer sides of an OFDM channel with lower order modulation schemes (such as BPSK or QPSK), while modulating the sub-carriers at the inner side of the OFDM channel with higher order modulation schemes (such as 16QAM or 64QAM). Intensive simulations have been carried out to evaluate the performance of the proposed method. The simulation results have shown an increase in the OFDM system's resistance against adjacent channel interference while still maintain the bandwidth efficiency.
Download or read book Digital Modulation Techniques in an Interference Environment written by Kamilo Feher and published by . This book was released on 1977 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Next Generation CDMA Technologies written by Hsiao-Hwa Chen and published by John Wiley & Sons. This book was released on 2007-08-20 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: Future wireless communication systems should be operating mainly, if not completely, on burst data services carrying multimedia traffic.The need to support high-speed burst traffic has already posed a great challenge to all currently available air-link technologies based either on TDMA or CDMA.The first generation CDMA technology has been used in both 2G and 3G mobile cellular standards and it has been suggested that it is not suitable for high-speed burst-type traffic. There are many problems with the first generation CDMA technology, such as its low spreading efficiency, interference-limited capacity and the need for precision power control, etc... 'The Next Generation Technologies' will offer first-hand information on how to make use of various innovative technologies to implement the next generation CDMA technology. As an all-in-one reference for telecommunications engineers, advanced R & D personnels, undergraduate and postgraduate students, this book is must-read material. Addresses various important issues about the next generation CDMA technologies as the major air-link technology for beyond 3G wireless applications. Covers topics from next generation CDMA system modelling to analytical methodology, starting with the basics and progressing to advanced research topics. Contains many new and previously unpublished research results. Introduces many innovative CDMA technologies such as DS/CC-CDMA, OS/CC-CDMA, space-time complementary coding CDMA, M-ary CDMA, optical complementary coded CDMA, etc.
Download or read book Third International Conference on Telecommunication Transmission 18 21 March 1985 written by Institution of Electrical Engineers. Electronics Division and published by . This book was released on 1985 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics of Meteor Outbursts and Satellite Mitigation Strategies written by Glenn E. Peterson and published by AIAA. This book was released on 1999 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: The potential threat posed by Leonid meteroids to orbiting spacecraft over the next several years calls for new dynamic mitigation strategies to assist the satellite community in reducing the danger to its vehicles. This book offers deliberate dynamic mitigation strategies to complement the traditional shielding strategies, providing mission operators additional ways to decrease the danger. Five different attitude control and orbit maneuvering options are examined in detail. The information is presented in algorithmic form to allow technically competent, but meteoroid inexperienced, operators to easily understand the phenomena, assess the danger, and implement procedures. Although general in scope, the book emphasizes the Leonid meteor events of the 1998-2002 timeframe.
Download or read book Contemporary Modulation Methods and Adjacent Channel Interference in Mobile Radio Service written by Jared Scott Smith and published by . This book was released on 1957 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cognitive Radio written by Rajeshree Raut and published by CRC Press. This book was released on 2020-04-16 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Globally considered as one of the key technologies in the field of wireless communications, cognitive radio has the capability to solve the issues related to radio spectrum scarcity with the help of dynamic spectrum allocation. It discusses topics including software defined radio architecture, linear predictive coding, variance fractal compression, optimal Codec design for mobile communication system, digital modulation techniques, spectrum sensing in cognitive radio networks and orthogonal frequency division multiplexing in depth. The text is primarily written for senior undergraduate and graduate students, in learning experimental techniques, designing and implementing models in the field wireless communication.
Download or read book 36th IEEE Vehicular Technology Conference written by and published by . This book was released on 1986 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Signal Processing of HDTV VI written by Yuichi Ninomiya and published by Elsevier Science & Technology. This book was released on 1995 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Workshop on HDTV held in Italy in 1994 had a considerably wider scope than those of previous years. Topics covered include Program Content Generation, Encoding Multiplexing, Delivery, Receivers and Technical Aspects of Delivery Services, not only in connection with HDTV but also for many advanced systems such as digital television broadcasting.The volume will assist in the progress of technology in relation to HDTV as well as in other advanced television systems.
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1988 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by International Telemetering Conference and published by . This book was released on 1983 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Communication Satellites written by Donald H. Martin and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2000 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Communication Satellites" chronicles the worldwide development of communication satellites over a period of more than four decades. Includes drawings of satellites, communication subsystem block diagrams, coverage maps, extensive references, and a supplemental bibliography.
Download or read book Signal Processing of HDTV V written by L. Stenger and published by Elsevier. This book was released on 2014-06-28 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a world at the eve of digital television by satellite and cable, this publication provides a state-of-the-art exploration of the latest developments in HDTV technology. It highlights the technologies needed to launch HDTV from demonstration and trial status to that of a complete product and service. It also contributes towards the provision of the knowledge base required for the planning and management of the spectrum across the continents.Papers are sourced from a wide range of international experts in the field, including those from Canada, where, according to L. Chiariglione, ... An incredibly bold gamble, the progressive introduction of HDTV service on the [Canadian] terrestrial distribution network, additional to the existing TV service, has been proven to work and steps have been taken towards the full technical specification of the complete system. This publication aims to have the dream of interactive television take a leap forward into reality.
Download or read book Communication Satellites 1958 1995 written by Donald H. Martin and published by Aerospace Publications. This book was released on 1996 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume chronicles the evolution of commercial, military, national and international communication satellites. The text covers nine categories of communication satellites and provides technical details of each type of satellite launched by 1995.
Download or read book Proceedings written by and published by . This book was released on 1983 with total page 910 pages. Available in PDF, EPUB and Kindle. Book excerpt:
