Results 21 to 30 of about 86,909 (315)

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.
Thierry Lestable   +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

Entanglement-assisted quantum turbo codes [PDF]

open access: yes, 2013
An unexpected breakdown in the existing theory of quantum serial turbo coding is that a quantum convolutional encoder cannot simultaneously be recursive and non-catastrophic.
Babar, Zunaira   +2 more
core   +3 more sources

On receiver design for low density signature OFDM (LDS-OFDM) [PDF]

open access: yes, 2012
Low density signature orthogonal frequency division multiplexing (LDS-OFDM) is an uplink multi-carrier multiple access scheme that uses low density signatures (LDS) for spreading the symbols in the frequency domain.
Al-Imari, Mohammed   +4 more
core   +1 more source

Analysis and Design of Tuned Turbo Codes [PDF]

open access: yes, 2012
It has been widely observed that there exists a fundamental trade-off between the minimum (Hamming) distance properties and the iterative decoding convergence behavior of turbo-like codes.
Costello, Daniel J. Jr.   +6 more
core   +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

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 with Modified Code-matched Interleaver over AWGN and Rayleigh Fading Channel [PDF]

open access: yes, 2005
A novel Code-Matched interleaver is proposed which decreases the number of the low weight codewords to improve the performance of the Turbo code. The modified design can adapt more kinds of Turbo codes determined by the generator matrix, while it doesn't
LUO, Ji, YUAN, Dong-feng, ZHANG, Xi-lin
core   +1 more source

Beyond Gbps Turbo Decoder on Multi-Core CPUs [PDF]

open access: yes, 2016
International audienceThis paper presents a high-throughput implementation of a portable software turbo decoder. The code is optimized for traditional multi-core CPUs (like x86) and it is based on the Enhanced max-log-MAP turbo decoding variant. The code
Aumage, Olivier   +5 more
core   +3 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

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