Results 41 to 50 of about 2,545,040 (230)

A MODIFIED UNEQUAL POWER ALLOCATION (UPA) SCHEME FOR PERFORMANCE ENHANCEMENT IN BIT REPETITION TURBO CODES IN HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA) SYSTEM [PDF]

open access: yesJournal of Engineering Science and Technology, 2015
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  

Survey of Turbo, LDPC, and Polar Decoder ASIC Implementations

open access: yesIEEE Communications Surveys and Tutorials, 2019
Channel coding may be viewed as the best-informed and most potent component of cellular communication systems, which is used for correcting the transmission errors inflicted by noise, interference, and fading.
Shuai Shao   +6 more
semanticscholar   +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

1/n Turbo codes from linear system point of view [PDF]

open access: yes, 2020
The performance of turbo codes at the error floor region is largely determined by the effective free distance, which corresponds to the minimum Hamming weight among all codeword sequences generated by input sequences of weight two.
Herranz, Victoria   +2 more
core   +1 more source

Novel Methods in the Improvement of Turbo Codes and their Decoding [PDF]

open access: yes, 2013
The performance of turbo codes can often be improved by improving the weight spectra of such codes. Methods of producing the weight spectra of turbo codes have been investigated and many improvements were made to refine the techniques.
Rogers, Andrew John
core   +2 more sources

Decoding Schemes for Foliated Sparse Quantum Error Correcting Codes [PDF]

open access: yes, 2018
Foliated quantum codes are a resource for fault-tolerant measurement-based quantum error correction for quantum repeaters and for quantum computation.
Bolt, A., Poulin, D., Stace, T. M.
core   +2 more sources

New High Performance Deterministic Interleavers for Turbo Codes

open access: yesAdvances in Electrical and Computer Engineering, 2010
Turbo codes offer extraordinary performance, especially at low signal to noise ratios, due to a low multiplicity of low weight code words. The interleaver design is critical in order to realize an apparent randomness of the code, thus further enhancing
TRIFINA, L.   +4 more
doaj   +1 more source

Understanding Turbo Codes: A Signal Processing Study [PDF]

open access: yesarXiv, 2023
In this paper, we study turbo codes from the digital signal processing point of view by defining turbo codes over the complex field. It is known that iterative decoding and interleaving between concatenated parallel codes are two key elements that make turbo codes perform significantly better than the conventional error control codes.
arxiv  

Performance evaluation of turbo codes

open access: yesElectronics Letters, 1995
Parallel concatenated coding schemes employing convolutional codes as constituent codes linked by an interleaver have been proposed in the literature as "turbo codes". They yield very good performance in connection with simple suboptimum decoding algorithms. The authors derive an analytical upper bound to the average performance of such coding schemes,
S. BENEDETTO, MONTORSI, Guido
openaire   +3 more sources

Turbo Packet Combining Strategies for the MIMO-ISI ARQ Channel [PDF]

open access: yesIEEE Transactions on Communications, vol. 57, no. 12, pp. 3782-3793, Dec. 2009, 2009
This paper addresses the issue of efficient turbo packet combining techniques for coded transmission with a Chase-type automatic repeat request (ARQ) protocol operating over a multiple-input--multiple-output (MIMO) channel with intersymbol interference (ISI).
arxiv   +1 more source

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