Results 21 to 30 of about 2,545,040 (230)
Exit chart analysis of parallel data convolutional codes [PDF]
, 2005 We recently proposed a new class of turbo-like codes called parallel data convolutional codes (PDCCs). The distinct characteristics of PDCCs include parallel data input bits and a self-iterative soft-in/soft-out a posteriori probability(APP) decoder. In
Leis, John +2 more
core +1 more source
Interleaver Optimal Turbo Code pada Kanal Flat Fading
Rekayasa, 2009 Turbo Code is one of the channel encoding technique used in wireless cellular networks are approaching the limit of Shannon's theory. Interleaver is used to determine the rules of the randomization technique of bits of information in relation to the
Dwi Kuswanto
doaj +1 more source
Frequency Domain Hybrid-ARQ Chase Combining for Broadband MIMO CDMA Systems [PDF]
, 2009 In this paper, we consider high-speed wireless packet access using code division multiple access (CDMA) and multiple-input multiple-output (MIMO). Current wireless standards, such as high speed packet access (HSPA), have adopted multi-code transmission ...
Ait-Idir, Tarik +3 more
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BIT ERROR OPTIMIZATION OF CODED OFDM SYSTEM OVER RAYLEIGH FADING CHANNEL [PDF]
Journal 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
Turbo Equalization With Irregular Turbo Codes [PDF]
2007 4th International Symposium on Wireless Communication Systems, 2007 We analyze a turbo equalization system that combines maximum a posteriori probability (MAP) equalization with irregular turbo codes. Our goal is to approach the information capacity limit for severe inter-symbol interference (ISI) channels. To this end, we optimize the degree profile of irregular turbo codes by maximizing the minimum distance between ...
Peter J. Schreier +2 more
openaire +1 more source
Efficient Decoding of Turbo Codes with Nonbinary Belief Propagation
EURASIP 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
An Efficient Early Iteration Termination for Turbo Decoder
Journal of Telecommunications and Information Technology, 2016 Turbo code finds wide applications in mobile communication, deep space communication, satellite communication and short-range communication despite its high computational complexity and iterative nature.
P. Salija
doaj +1 more source
Precoded turbo code within 0.1dB of Shannon limit [PDF]
, 2011 The application of the precoding technique to turbo codes is investigated, resulting in a new class of turbo-like codes named precoded turbo codes. The introduction of a precoder provides a degree of freedom for code optimisation.
Bai, B, Tong, S, Zheng, H
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Performance of Turbo Interference Cancellation Receivers in Space-Time Block Coded DS-CDMA Systems
EURASIP 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.
Emmanuel Oluremi Bejide +1 more
doaj +2 more sources
Analysis and Design of Tuned Turbo Codes [PDF]
, 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.
Amat, Alexandre Graell i +5 more
core +2 more sources