Results 21 to 30 of about 2,763,921 (284)

Efficient Decoding of Turbo Codes with Nonbinary Belief Propagation

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
This paper presents a new approach to decode turbo codes using a nonbinary belief propagation decoder. The proposed approach can be decomposed into two main steps.
Lestable Thierry   +2 more
doaj   +2 more sources

BIT ERROR OPTIMIZATION OF CODED OFDM SYSTEM OVER RAYLEIGH FADING CHANNEL [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
Low Density Parity-Check (LDPC) codes are one of the hottest topics in coding theory today. This code invented in the early 1960's, and it having an amazing comeback in the last few years.
Awatif Ali Jafaar, Zainab Majeed Abid
doaj   +3 more sources

Interleaver design for turbo codes [PDF]

open access: yes2000 IEEE International Symposium on Information Theory (Cat. No.00CH37060), 2001
The performance of a Turbo code with short block length depends critically on the interleaver design. There are two major criteria in the design of an interleaver: the distance spectrum of the code and the correlation between the information input data and the soft output of each decoder corresponding to its parity bits.
Hamid R. Sadjadpour   +3 more
openaire   +2 more sources

Performance of Turbo Interference Cancellation Receivers in Space-Time Block Coded DS-CDMA Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
We investigate the performance of turbo interference cancellation receivers in the space time block coded (STBC) direct-sequence code division multiple access (DS-CDMA) system.
Mashwama DerrickB   +1 more
doaj   +2 more sources

On multiple slice turbo codes

open access: yesAnnales Des Télécommunications, 2005
The main problem with the hardware implementation of turbo codes is the lack of parallelism in the MAP-based decoding algorithm. This paper proposes to overcome this problem by using a new family of turbo codes called Multiple Slice Turbo Codes. This family is based on two ideas: the encoding of each dimension with P independent tail-biting codes and a
Gnaedig, David   +4 more
openaire   +4 more sources

THE EFFECT OF TRELLIS TERMINATION ON THE PERFORMANCE OF TURBO CODE

open access: yesJournal of Engineering, 2003
This paper introduces a new class of convolutional codes, which is called Turbo Code. Turbo Code was shown to achieve performance in terms of Bit-Error-Rate (BER), which is near Shannon limit.
H.H. Abbas, W. A. Mahmoud, S.K. Omran
doaj   +1 more source

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

Enancement The Reverse Link Capacity of Third Generation Mobile Radio System [PDF]

open access: yesEngineering and Technology Journal, 2005
The paper investigates the effect of including the turbo coding in the 3G system . The bit error rate performance of the system with AWGN channel is investigated to study the effect of number of iteration , frame size , code rate and memory size of the ...
siddeq Muhaned   +2 more
doaj   +1 more source

Simple Metrics for Turbo Code Interleavers

open access: yesElectrica, 2019
In this paper, we consider the searching for good turbo code interleavers. Especially, we focus on the permutation polynomial interleavers. Three key properties (i.e.
Hao HE   +4 more
doaj   +2 more sources

Improving 3D-Turbo Code's BER Performance with a BICM System over Rayleigh Fading Channel [PDF]

open access: yesRadioengineering, 2016
Classical Turbo code suffers from high error floor due to its small Minimum Hamming Distance (MHD). Newly-proposed 3D-Turbo code can effectively increase the MHD and achieve a lower error floor by adding a rate-1 post encoder.
R. Yao, Y. Zhu, J. Xu, F. Gao, L. Wang
doaj  

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