Results 41 to 50 of about 558,827 (173)

Concatenated Space Time Block Codes and TCM, Turbo TCM Convolutional as well as Turbo Codes

open access: yes, 2000
Space-time block codes provide substantial diversity advantages for multiple transmit antenna systems at a low decoding complexity. In this paper, we concatenate space-time codes with Convolutional Codes (CC), Turbo Convolutional codes (TC), Turbo BCH ...
Pliquett, J.   +4 more
core   +1 more source

An Efficient Polar Coding Scheme for Uplink Data Transmission in Narrowband Internet of Things Systems

open access: yesIEEE Access, 2020
Narrowband Internet of Things (NB-IoT) is an emerging IoT cellular-based wireless technology that builds based on the existing LTE standard to extend its network coverage suited for Low Power Wide Area Network (LPWAN) connectivity.
Rabiu Sale Zakariyya   +4 more
doaj   +1 more source

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

Design and Implementation of Adaptive Turbo Encoder for Quantized Software Defined Low-Power DVB-RCS Radios [PDF]

open access: yesTelfor Journal, 2010
Turbo codes are employed in every robust wireless digital communications system. Those codes have been adopted for the satellite return channel in DVB-RCS (Return Channel via Satellite) standard. In Software Defined Radios (SDRs), Field Programmable Gate
S. H. Elramly, S. W. Shaker
doaj  

Concatenated Turbo/LDPC codes for deep space communications: performance and implementation [PDF]

open access: yes, 2013
Deep space communications require error correction codes able to reach extremely low bit-error-rates, possibly with a steep waterfall region and without error floor. Several schemes have been proposed in the literature to achieve these goals.
Condo, Carlo
core  

An EXIT-Chart Aided Design Procedure for Near-Capacity N-Component Parallel Concatenated Codes [PDF]

open access: yes, 2010
Shannon’s channel capacity specifies the upper bound on the amount of bits per channel use. In this paper, we explicitly demonstrate that twin-component turbo codes suffer from a capacity loss, when the component code rate is less than unity, which is ...
Chen, Hong   +5 more
core   +1 more source

Iterative Decoding of Concatenated Codes: A Tutorial

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
The turbo decoding algorithm of a decade ago constituted a milestone in error-correction coding for digital communications, and has inspired extensions to generalized receiver topologies, including turbo equalization, turbo synchronization, and turbo ...
Phillip A. Regalia
doaj   +1 more source

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  

Near-Hashing-Bound Multiple-Rate Quantum Turbo Short-Block Codes

open access: yesIEEE Access, 2019
Quantum stabilizer codes (QSCs) suffer from a low quantum coding rate since they have to recover the quantum bits (qubits) in the face of both bit-flip and phase-flip errors. In this treatise, we conceive a low-complexity concatenated quantum turbo code (
Daryus Chandra   +3 more
doaj   +1 more source

Application of convolutional interleavers in turbo codes with unequal error protection

open access: yesJournal of Telecommunications and Information Technology, 2006
This paper deals with an application of convolu- tional interleavers in unequal error protection (UEP) turbo codes. The constructed convolutional interleavers act as block interleavers by inserting a number of stuff bits into the interleaver memories at
Sina Vaf, Tadeusz Antoni Wysocki
doaj   +1 more source

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