Results 1 to 10 of about 22,376 (246)

Turbo codes and turbo algorithms

open access: yesJournal of Communications Software and Systems, 2017
In the first part of this paper, several basic ideas that prompted the coming of turbo codes are commented on. We then present some personal points of view on the main advances obtained in past years on turbo coding and decoding such as the circular trellis termination of recursive systematic convolutional codes and double-binary turbo codes associated
Berrou, Claude   +2 more
openaire   +4 more sources

Coding theorems for turbo code ensembles [PDF]

open access: yesIEEE Transactions on Information Theory, 2002
Summary: This paper is devoted to a Shannon-theoretic study of turbo codes. We prove that ensembles of parallel and serial turbo codes are good in the following sense. For a turbo code ensemble defined by a fixed set of component codes (subject only to mild necessary restrictions), there exists a positive number \(\gamma_0\) such that for any binary ...
Jin, Hui, McEliece, Robert J.
openaire   +2 more sources

PERFORMANCE EVALUATION OF TURBO CODE ENDCODING AND DECODING

open access: yesAl-Qadisiyah Journal for Engineering Science, 2011
Channel coding is very important for secure communication. The most widely used communication coding is turbo coding technique, which is very secure technique. We deal in this paper with turbo code which is new class of convolutional codes.
Yahya Jasim Harbi
doaj  

Research and implementation of Turbo decoding SOVA algorithm

open access: yesDianzi Jishu Yingyong
For the application requirements of low-orbit satellite communication, in order to reduce interference and load, convolutional codes, Turbo codes and other channel coding methods are usually used to improve the reliability of transmission.
Wang Danfei, Song Junkang, Xia Huining
doaj   +1 more source

Equivalent MIMO Channel Matrix Sparsification for Enhancement of Sensor Capabilities

open access: yesSensors, 2022
One of the development directions of new-generation mobile communications is using multiple-input multiple-output (MIMO) channels with a large number of antennas. This requires the development and utilization of new approaches to signal detection in MIMO
Mikhail Bakulin   +4 more
doaj   +1 more source

Haberleşme Sistemlerinde Turbo Kodlama ve Turbo İlkesinin Bazı Pratik Uygulamaları

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2014
söz etmiştir. Shannon, veri iletim hızı içi teorik bir sınır tanımlamış ve Shannon’dan günümüze kadar bu sınıra yaklaşma çabaları sürmüştür. Shannon’dan sonra çok sayıda etkin kodlama ve kod çözme teknikleri bulunmuş olmasına rağmen, 90’lı yılların ...
Selman KULAÇ, Murat Hüsnü SAZLI
doaj  

Performance of full-rate and partial-diversity multiple antennas space-time block code with low complexity

open access: yesTongxin xuebao, 2005
On the basis of existing full-diversity space-time block coding (STBC), two full-rate complex orthogonal STBC schemes for multiple antennas were proposed.
YU Xiang-bin1   +2 more
doaj   +2 more sources

Effect of unequal power allocation in turbo coded multi-route multi-hop networks

open access: yesJournal of Telecommunications and Information Technology, 2006
Multi-hop ad hoc networks are promising candidates for next generation mobile communications. They have sufficient channel capacity to achieve high data rate transmission for large number of users. One advantage of multi-hop networks is to realize multi-
Tadahiro Wada   +4 more
doaj   +1 more source

Performance Evaluation and Enhancement of Third Generation Mobile System [PDF]

open access: yesEngineering and Technology Journal, 2005
The goal for the next generation mobile communication system is to seamlessly integrate a wide variety of communication services such as high speed data transmission , video and multimedia traffic as well as voice signal . The technology needed to tackle
Muhanned alfarras
doaj   +1 more source

Interleaving Gains for Receive Diversity Schemes of Distributed Turbo Codes in Wireless Half–Duplex Relay Channels [PDF]

open access: yesRadioengineering, 2015
This paper proposes the interleaving gain in two different distributed turbo-coding schemes: Distributed Turbo Codes (DTC) and Distributed Multiple Turbo Codes (DMTC) for half-duplex relay system as an extension of our previous work on turbo coding ...
Tamer H. M. Soliman   +2 more
doaj  

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