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Book Subspace Based Semi Blind Channel Estimation in Uplink OFDMA Systems

Download or read book Subspace Based Semi Blind Channel Estimation in Uplink OFDMA Systems written by 潘俊憲 and published by . This book was released on 2008 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Subspace based Blind Channel Estimation and Tracking for MIMO OFDM Systems

Download or read book Subspace based Blind Channel Estimation and Tracking for MIMO OFDM Systems written by Chao-Cheng Tu and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Issues in Advertising Mass Communication and Public Relations 2011 Edition

Download or read book Issues in Advertising Mass Communication and Public Relations 2011 Edition written by and published by ScholarlyEditions. This book was released on 2012-01-09 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Advertising, Mass Communication, and Public Relations: 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Advertising, Mass Communication, and Public Relations. The editors have built Issues in Advertising, Mass Communication, and Public Relations: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Advertising, Mass Communication, and Public Relations in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Advertising, Mass Communication, and Public Relations: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Book Multi carrier Techniques for Broadband Wireless Communications

Download or read book Multi carrier Techniques for Broadband Wireless Communications written by Man-On Pun and published by World Scientific. This book was released on 2007 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multi-Carrier Techniques for Broadband Wireless Communications provides an accessible introduction to OFDM-based systems from a signal processing perspective. The first part presents a concise treatment of some fundamental concepts related to wireless communications and multicarrier systems, while the second offers a comprehensive survey of recent developments on a variety of critical design issues. These include synchronization techniques, channel estimation methods, adaptive resource allocation and practical schemes for reducing the peak-to-average power ratio of the transmitted waveform.

Book Adaptive Semiblind Channel Estimation for OFDM OQAM Systems

Download or read book Adaptive Semiblind Channel Estimation for OFDM OQAM Systems written by Tianze Su and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this thesis, we propose and investigate novel adaptive semi-blind channel estimation algorithms for OFDM/OQAM systems. OFDM/OQAM is regarded as a promising alternative to conventional CP-OFDM for multi-carrier modulation since it can provide better spectrum efficiency, albeit at the price of increased complexity. We first formulate a general system model of an OFDM/OQAM transceiver. Based on this model, we review a recently proposed block based semi-blind channel estimation method for OFDM/OQAM systems, known as the sign covariance matrix (SCM) method. This method mainly exploits the higher-order statistical properties of the data at the receiver side but is not well-suited for applications to time-varying channels. Subsequently, to overcome the drawbacks of this block-based technique, we propose adaptive semi-blind channel estimation algorithms for application to OFDM/OQAM. The proposed algorithms consist of an adaptive SCM technique obtained through exponential recursive averaging, as well as several constant modulus algorithms (CMA) for recursive estimation. Although all the adaptive algorithms are designed to deal with time-varying channels, they can also be used for rapid channel acquisition in the case of static or slowly-varying channels. Furthermore, we explore the coherence bandwidth of the channel and make use of this concept to improve the estimation accuracy via a frequency averaging technique that can be combined with the adaptive SCM. Simulation results validate the efficacy of the proposed adaptive estimation algorithms over both time-invariant and varying channels, showing their robustness in terms of convergence speed, tracking capability and residual estimation error in steady-state. In particular, the CMA with recursive least squares (CMA-RLS) updating proves to be the most preferable due to its excellent trade-off between convergence rate and residual error level. The CMA-RLS also offers the best performance in tracking a time-varying channel. In addition, simulation experiments demonstrate the effectiveness of combining the frequency averaging technique with the proposed adaptive SCM algorithm." --

Book Subspace based Blind Channel Estimation

Download or read book Subspace based Blind Channel Estimation written by Wei Kang and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Novel Subspace based Blind Channel Estimation Algorithm in Space time Block Coded Zero padded Systems with Few Received Blocks

Download or read book Novel Subspace based Blind Channel Estimation Algorithm in Space time Block Coded Zero padded Systems with Few Received Blocks written by 周柏夆 and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Academic Press Library in Signal Processing

Download or read book Academic Press Library in Signal Processing written by Fulvio Gini and published by Academic Press. This book was released on 2013-09-10 with total page 1389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second volume, edited and authored by world leading experts, gives a review of the principles, methods and techniques of important and emerging research topics and technologies in communications and radar engineering. With this reference source you will: Quickly grasp a new area of research Understand the underlying principles of a topic and its application Ascertain how a topic relates to other areas and learn of the research issues yet to be resolved Quick tutorial reviews of important and emerging topics of research in array and statistical signal processing Presents core principles and shows their application Reference content on core principles, technologies, algorithms and applications Comprehensive references to journal articles and other literature on which to build further, more specific and detailed knowledge Edited by leading people in the field who, through their reputation, have been able to commission experts to write on a particular topic

Book Blind and Semi blind Channel Estimation Under Space time Coded Transmissions

Download or read book Blind and Semi blind Channel Estimation Under Space time Coded Transmissions written by Nejib Ammar and published by . This book was released on 2005 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Semi Blind Channel Estimation Using Second Order Statistics and Its Application to Time Reversal Space Time Block Codes

Download or read book Semi Blind Channel Estimation Using Second Order Statistics and Its Application to Time Reversal Space Time Block Codes written by Hemanth Mullar Srikantaiah and published by . This book was released on 2006 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: