BIT ERROR OPTIMIZATION OF CODED OFDM SYSTEM OVER RAYLEIGH FADING CHANNEL [PDF]
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
Evaluation of cross-layer reliability mechanisms for satellite digital multimedia broadcast [PDF]
This paper presents a study of some reliability mechanisms which may be put at work in the context of Satellite Digital Multimedia Broadcasting (SDMB) to mobile devices such as handheld phones.
Bazile, Caroline +6 more
core +2 more sources
Constellation Shaping for WDM systems using 256QAM/1024QAM with Probabilistic Optimization [PDF]
In this paper, probabilistic shaping is numerically and experimentally investigated for increasing the transmission reach of wavelength division multiplexed (WDM) optical communication system employing quadrature amplitude modulation (QAM).
Da Ros, Francesco +7 more
core +2 more sources
THE EFFECT OF TRELLIS TERMINATION ON THE PERFORMANCE OF TURBO CODE
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
Enancement The Reverse Link Capacity of Third Generation Mobile Radio System [PDF]
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
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
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Improving 3D-Turbo Code's BER Performance with a BICM System over Rayleigh Fading Channel [PDF]
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
On optimal and near-optimal turbo decoding using generalized max operator [PDF]
Motivated by a recently published robust geometric programming approximation, a generalized approach for approximating efficiently the max* operator is presented.
Martina, Maurizio +3 more
core +1 more source
A MODIFIED UNEQUAL POWER ALLOCATION (UPA) SCHEME FOR PERFORMANCE ENHANCEMENT IN BIT REPETITION TURBO CODES IN HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA) SYSTEM [PDF]
In this paper, a modified optimal power allocation scheme for different bits in turbo encoder has been proposed to improve the performance of Turbo Codes system in High Speed Downlink Packet Access (HSDPA) service. In a typical turbo code in HSDPA system,
B. BALAMURALITHARA
doaj
Recurrent neural network based turbo decoding algorithms for different code rates
Application of deep learning to error control coding is gaining special attention and neural network architectures on decoding are approached to compare with conventional ones. Turbo codes conventionally use BCJR algorithm for decoding.
Shridhar B. Devamane +1 more
doaj +1 more source

