A Low Complexity And High Performance Concatenated Coding Scheme For High Speed Satellite Communications
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| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 28 |
| Release | : 2018-08-10 |
| Genre | : |
| ISBN | : 9781725000230 |
This report presents a low-complexity and high performance concatenated coding scheme for high-speed satellite communications. In this proposed scheme, the NASA Standard Reed-Solomon (RS) code over GF(2(exp 8) is used as the outer code and the second-order Reed-Muller (RM) code of Hamming distance 8 is used as the inner code. The RM inner code has a very simple trellis structure and is decoded with the soft-decision Viterbi decoding algorithm. It is shown that the proposed concatenated coding scheme achieves an error performance which is comparable to that of the NASA TDRS concatenated coding scheme in which the NASA Standard rate-1/2 convolutional code of constraint length 7 and d sub free = 10 is used as the inner code. However, the proposed RM inner code has much smaller decoding complexity, less decoding delay, and much higher decoding speed. Consequently, the proposed concatenated coding scheme is suitable for reliable high-speed satellite communications, and it may be considered as an alternate coding scheme for the NASA TDRS system. Lin, Shu and Rhee, Dojun and Rajpal, Sandeep Unspecified Center NASA-CR-192715, REPT-93-001, NAS 1.26:192715 NAG5-931...
| Author | : |
| Publisher | : |
| Total Pages | : 376 |
| Release | : 1995 |
| Genre | : Aeronautics |
| ISBN | : |
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 1994 |
| Genre | : Government publications |
| ISBN | : |
| Author | : IEEE Information Theory Society |
| Publisher | : IEEE Standards Office |
| Total Pages | : 576 |
| Release | : 1997-06 |
| Genre | : Computers |
| ISBN | : 9780780339569 |
This proceeding covers topics such as universal sourcing code, estimation, cyclic codes, multi-user channels, synchronization, CDMA sequences, pattern recognition and estimation, and signal processing techniques. Applications to communications channels and recovery from faults are described.
| Author | : |
| Publisher | : |
| Total Pages | : 1592 |
| Release | : 1994 |
| Genre | : Government publications |
| ISBN | : |
| Author | : Richard E. Blahut |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 473 |
| Release | : 2012-12-06 |
| Genre | : Technology & Engineering |
| ISBN | : 1461526949 |
Information theory is an exceptional field in many ways. Technically, it is one of the rare fields in which mathematical results and insights have led directly to significant engineering payoffs. Professionally, it is a field that has sustained a remarkable degree of community, collegiality and high standards. James L. Massey, whose work in the field is honored here, embodies the highest standards of the profession in his own career. The book covers the latest work on: block coding, convolutional coding, cryptography, and information theory. The 44 contributions represent a cross-section of the world's leading scholars, scientists and researchers in information theory and communication. The book is rounded off with an index and a bibliography of publications by James Massey.
| Author | : World Bank |
| Publisher | : World Bank Publications |
| Total Pages | : 1422 |
| Release | : 1993 |
| Genre | : Business & Economics |
| ISBN | : 9780821323953 |
The Republic of Korea's industrial policy has directed that nation's economy through nearly three decades of spectacular growth. But the authors of this paper maintain that this policy is showing signs of being outmoded. The time has come, the authors argue, for the Korean government to stop managing the economy's structural development and to redefine the responsibilities of business and government. Under this proposed compact, the allocation of resources would shift from the government to the private industrial and financial sectors. The transformation of the government bureaucracy from an ad hoc policy role to one of a transparent and predictable regulator is a key to the success of this undertaking. These new directions would present the government with enormous challenges. Greater competitive discipline and regulatory oversight would be required. While dealing with the complexities of the transition, the government would have to maintain macroeconomic stability and the momentum of savings and investment. For comparison, the study examines the industrial economies of France, Germany, Japan, and the United States, which underwent similar shifts.
| Author | : |
| Publisher | : DIANE Publishing |
| Total Pages | : 203 |
| Release | : |
| Genre | : |
| ISBN | : 1428918248 |
| Author | : Gerard Maral |
| Publisher | : John Wiley & Sons |
| Total Pages | : 773 |
| Release | : 2011-08-24 |
| Genre | : Technology & Engineering |
| ISBN | : 1119965098 |
Revisions to 5th Edition by: Zhili Sun, University of Surrey, UK New and updated edition of this authoritative and comprehensive reference to the field of satellite communications engineering Building on the success of previous editions, Satellite Communications Systems, Fifth Edition covers the entire field of satellite communications engineering from orbital mechanics to satellite design and launch, configuration and installation of earth stations, including the implementation of communications links and the set-up of the satellite network. This book provides a comprehensive treatment of satellite communications systems engineering and discusses the technological applications. It demonstrates how system components interact and details the relationship between the system and its environment. The authors discuss the systems aspects such as techniques enabling equipment and system dimensioning and state of the art technology for satellite platforms, payloads and earth stations. New features and updates for the fifth edition include: More information on techniques allowing service provision of multimedia content Extra material on techniques for broadcasting, including recent standards DVB-RCS and DVB-S2 (Digital Video Broadcasting -Return Channel Satellite and -Satellite Version 2) Updates on onboard processing By offering a detailed and practical overview, Satellite Communications Systems continues to be an authoritative text for advanced students, engineers and designers throughout the field of satellite communications and engineering.
| Author | : Steven J. Isakowitz |
| Publisher | : AIAA |
| Total Pages | : 622 |
| Release | : 1999 |
| Genre | : Reference |
| ISBN | : 9781563473531 |
This best-selling reference guide contains the most reliable and up-to-date material on launch programs in Brazil, China, Europe, India, Israel, Japan, Russia, Ukraine, and the United States. Packed with illustrations and figures, the third edition has been extensively updated and expanded, and offers a quick and easy data retrieval source for policymakers, planners, engineers, launch buyers, and students.
