Author: Göran MalmgrenPublisher:
ISBN:
Category :
Languages : en
Pages : 46
Book Description
Coding for Adaptive Frequency Hopping System in HF-communications
Adaptive Frequency Hopping in HF-communications
Author: Jens ZanderAn HF Adaptive Frequency Hopping System
Author: Marco OmanScientific and Technical Aerospace Reports
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 380
Book Description
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.
Adaptive Coding to Increase the Throughput in a Packet-switched, Frequency-hop Spread-spectrum Communications Network
Author: James Holland McKinney (Jr.)Publisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
Adaptive Coding for Mobile Wireless Frequency-hop Spread Spectrum Networks
Author: Jason S. SkinnerCode-shift Keying for Frequency-hopping HF Systems with Multipath Propagation
Author: G. O. VenierHF Communications
Author: Nicholas M MaslinPublisher: CRC Press
ISBN: 0203168895
Category : Technology & Engineering
Languages : en
Pages : 256
Book Description
Communications using the high frequency spectrum (2-30 MHz) have experienced a considerable resurgence. In recent years, powerful microcomputers and VLSI technology have greatly enhanced the prospects of overcoming many of the unique problems that formerly afflicted the HF systems More...designer. The aim of this book, therefore, is to provide a fi
Communications Engineering e-Mega Reference
Author: Erik DahlmanPublisher: Academic Press
ISBN: 0123746493
Category : Technology & Engineering
Languages : en
Pages : 557
Book Description
A one-stop Desk Reference, for R&D engineers involved in communications engineering; this is a book that will not gather dust on the shelf. It brings together the essential professional reference content from leading international contributors in the field. Material covers a wide scope of topics including voice, computer, facsimile, video, and multimedia data technologies * A fully searchable Mega Reference Ebook, providing all the essential material needed by Communications Engineers on a day-to-day basis. * Fundamentals, key techniques, engineering best practice and rules-of-thumb together in one quick-reference.* Over 2,500 pages of reference material, including over 1,500 pages not included in the print edition
Adaptive-Rate Turbo Product Coding for Frequency-Hop Transmission and Time-Varying Partial-Band Interference
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 7
Book Description
A protocol is described and evaluated for adapting the rate of a turbo code for frequency-hop packet transmissions over time-varying partial-band interference channels. The rate of the turbo code is adapted from packet to packet to optimize the throughput. In particular, the protocol is designed to use a high-rate code when there is little interference and a low-rate code when the interference occupies a significant fraction of the band, even though neither the transmitter nor the receiver know what fraction of the band contains interference. No external side information is provided to the receiver, and our scheme requires no additional redundancy (e.g., pilot symbols) in the data packet for the generation of side information. The information needed to adapt the code rate is derived from our adaptive decoding system, and the only feedback required from the receiver to the transmitter is provided by a few bits in each acknowledgment packet. Results on the performance of the protocol are given from turbo product codes.