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searching for LDPC 47 found (62 total)

alternate case: lDPC

Low-density parity-check code (4,025 words) [view diff] exact match in snippet view article find links to article

parity-check (LDPC) code is a linear error correcting code, a method of transmitting a message over a noisy transmission channel. An LDPC is constructed
Error correction code (4,673 words) [view diff] exact match in snippet view article find links to article
iterated codes, like turbo codes and LDPC codes, typically assumes an independent distribution of errors. Systems using LDPC codes therefore typically employ
SPUDCO (111 words) [view diff] exact match in snippet view article find links to article
(LDPC). It was created in 1996 and had signs of trouble from the start. The fallout from the numerous scandals[vague] led to the bankruptcy of LDPC and
Michael Luby (757 words) [view diff] exact match in snippet view article find links to article
codes. These were the first LDPC codes based on an irregular degree design that has proved crucial to all later good LDPC code designs, which provably
Error floor (177 words) [view diff] exact match in snippet view article find links to article
encountered in modern iterated sparse graph-based error correcting codes like LDPC codes and turbo codes. When the bit error ratio (BER) is plotted for conventional
Linked Data Platform (528 words) [view diff] exact match in snippet view article find links to article
DirectContainer, and IndirectContainer A mechanism to get the content of a LDPC in chunks and specify the order in which the content is sorted LDP is not
EXIT chart (381 words) [view diff] exact match in snippet view article find links to article
iteratively-decoded error-correcting codes (in particular low-density parity-check (LDPC) codes and Turbo codes). EXIT charts were developed by Stephan ten Brink
Concatenated error correction code (2,080 words) [view diff] exact match in snippet view article find links to article
highly efficient LDPC code is combined with an algebraic outer code in order to remove any resilient errors left over from the inner LDPC code due to its
Turbo code (2,515 words) [view diff] exact match in snippet view article find links to article
links in the presence of data-corrupting noise. Turbo codes compete with LDPC codes ("low-density parity-check"), which provide similar performance. The
Ultra-wideband (3,621 words) [view diff] exact match in snippet view article find links to article
floor") that get past the LDPC correction inner code even at low bit-error rates. For example: The Reed-Solomon code with LDPC Coded Modulation (RS-LCM)
Coding theory (3,511 words) [view diff] exact match in snippet view article find links to article
coding techniques to get the bits through, for example the turbo code and LDPC codes. In 1948, Claude Shannon published "A Mathematical Theory of Communication"
Polar code (coding theory) (536 words) [view diff] exact match in snippet view article
poor compared to the well-defined and implemented coding schemes such as LDPC and Turbo. Polar performance can be improved with successive cancellation
Error detection and correction (3,697 words) [view diff] exact match in snippet view article find links to article
current widespread use. Turbo codes and low-density parity-check codes (LDPC) are relatively new constructions that can provide almost optimal efficiency
Ethernet over twisted pair (2,302 words) [view diff] exact match in snippet view article find links to article
(192, 186) LDPC 2000 1000 30 Cat 8 2000 Data centres 40GBASE-T 802.3bq-2016 (CL113) current 40000 4 4 6.25 PAM-16 RS-FEC (192, 186) LDPC 3200 1600 30
Claude Berrou (1,271 words) [view diff] exact match in snippet view article find links to article
Low-density parity-check codes (LDPC codes also known as Gallager codes, in honor of Robert G. Gallager, who developed the LDPC concept in his doctoral dissertation
IEEE 802.11ac (2,371 words) [view diff] exact match in snippet view article find links to article
specification: Two to four spatial streams Low-density parity-check code (LDPC) Space–time block coding (STBC) Transmit beamforming (TxBF) 400 ns short
Noisy-channel coding theorem (2,644 words) [view diff] exact match in snippet view article find links to article
such as Reed–Solomon codes and, more recently, low-density parity-check (LDPC) codes and turbo codes, come much closer to reaching the theoretical Shannon
Stochastic computing (2,542 words) [view diff] exact match in snippet view article find links to article
unrelated to stochastic computing, highly effective methods of decoding LDPC codes using the belief propagation algorithm were developed. Belief propagation
Reed–Solomon error correction (11,835 words) [view diff] exact match in snippet view article find links to article
parity-check (LDPC) codes or turbo codes. For example, Reed–Solomon codes are used in the Digital Video Broadcasting (DVB) standard DVB-S, but LDPC codes are
Club Atlético Olimpia (290 words) [view diff] exact match in snippet view article find links to article
of young people who are considered "bar-brava" themselves "Los Pibes de Colón" (LDPC) and call the team the North Capo. Club Olimpia on Básquet Total
Codec 2 (2,120 words) [view diff] exact match in snippet view article find links to article
words of 28 bits each, and the same number of Low-density parity-check code (LDPC) bits, plus four text bits, and a 10 bit unique sync word. Each data packet
DARPA Quantum Network (1,259 words) [view diff] exact match in snippet view article find links to article
limit via forward error correction based on low-density parity-check codes (LDPC). Sifting was performed either by traditional methods, run-length encoding
Digital Terrestrial Multimedia Broadcast (1,094 words) [view diff] exact match in snippet view article find links to article
system and a more accurate channel estimation, Low-Density Parity Check (LDPC) for error correction, modulation Time Domain Synchronization - Orthogonal
Communication channel (1,902 words) [view diff] exact match in snippet view article find links to article
communication, Bell System Technical Journal, vol. 27, pp. 379–423 and 623–656, (July and October, 1948) Amin Shokrollahi, LDPC Codes: An Introduction
WSJT (amateur radio software) (1,714 words) [view diff] exact match in snippet view article
sequence length: 15 s Message length: 75 bits + 12-bit CRC FEC code: (174,87)LDPC Modulation: 8-FSK, keying rate = tone spacing = 6.25 Hz Waveform: Continuous
Orbital angular momentum multiplexing (2,499 words) [view diff] exact match in snippet view article find links to article
2012-06-25. Retrieved 2012-06-25. Djordjevic, I. B.; Arabaci, M. (2010). "LDPC-coded orbital angular momentum (OAM) modulation for free-space optical communication"
Eb/N0 (1,177 words) [view diff] exact match in snippet view article find links to article
by the more recent discovery of turbo codes and low-density parity-check (LDPC) codes. Chris Heegard and Stephen B. Wicker (1999). Turbo coding. Kluwer
Zyablov bound (941 words) [view diff] exact match in snippet view article find links to article
Correction Current Binary Golay code Concatenated codes Turbo codes Proposed LDPC codes Telemetry command uplink Command Loss Timer Reset Proximity-1 Space
Spectral efficiency (2,128 words) [view diff] exact match in snippet view article find links to article
N/A N/A N/A Broadband CATV modem DOCSIS 3.1 QAM-4096, 25 kHz OFDM spacing, LDPC 2016 1890 192 9.84 N/A N/A N/A Broadband modem ADSL2 downlink 12 0.962 12
ATSC 3.0 (3,212 words) [view diff] exact match in snippet view article find links to article
frequency-division multiplexing (OFDM) modulation with low-density parity-check code (LDPC) FEC codes. With a 6 MHz channel the bit rate can vary from 1 Mbit/s to 57
WiMedia Alliance (1,790 words) [view diff] exact match in snippet view article find links to article
International. December 2008. Official website Creonic WiMedia-compliant 1 Gbit/s LDPC Decoder ETSI Publications Download Area This will open ETSI document search
Hard disk drive (13,259 words) [view diff] exact match in snippet view article find links to article
as of 2009[update], low-density parity-check codes (LDPC) were supplanting Reed–Solomon; LDPC codes enable performance close to the Shannon Limit and
Hybrid automatic repeat request (1,392 words) [view diff] exact match in snippet view article find links to article
phone lines and coaxial cables). G.hn uses CRC-32C for Error Detection, LDPC for Forward Error Correction and Selective Repeat for ARQ. Comroe/Costello
HomePlug (3,026 words) [view diff] exact match in snippet view article find links to article
turbo coding forward error correction and G.hn's low density parity check (LDPC). However, IEEE 1901 allows co-existence within the same deployment of both
Chang Chun-yen (971 words) [view diff] exact match in snippet view article find links to article
Kuo-Yi Cheng, and Chun-Yen Chang, "A Low Power and Ultra High Reliability LDPC Error Correction Engine with Digital Signal Processing for Embedded NAND
Sudoku code (2,921 words) [view diff] exact match in snippet view article find links to article
classical 9 × 9 {\displaystyle 9\times 9} Sudoku but with a variety of those. LDPC decoding is a common use-case for belief propagation, with slight modifications
G.hn (3,909 words) [view diff] exact match in snippet view article find links to article
frequency-division multiplexing (OFDM) modulation and low-density parity-check code (LDPC) forward error correction (FEC) code. G.hn includes the capability to notch
G.hn (3,909 words) [view diff] exact match in snippet view article find links to article
frequency-division multiplexing (OFDM) modulation and low-density parity-check code (LDPC) forward error correction (FEC) code. G.hn includes the capability to notch
Convolutional code (2,822 words) [view diff] exact match in snippet view article find links to article
pseudo-systematic codes. Other RSC codes and example applications include: Useful for LDPC code implementation and as inner constituent code for serial concatenated
WiMAX (6,140 words) [view diff] exact match in snippet view article find links to article
thereby improving indoor penetration Intro and low-density parity check (LDPC) Introducing downlink sub-channelization, allowing administrators to trade
Leonard Peltier (6,915 words) [view diff] exact match in snippet view article find links to article
Archived from the original (PDF) on July 24, 2008. Retrieved October 31, 2017. "LDPC email" Archived 2007-09-26 at the Wayback Machine, Prison Activist.org Carolyn
100 Gigabit Ethernet (6,725 words) [view diff] exact match in snippet view article find links to article
Breakout to 4×10G 40GBASE-T 113 Twisted pair copper cable 1↕ × 4 3.2 PAM16 × (RS-FEC(192,186) + LDPC) not possible (but can autonegotiate to 1×10GBASE-T)
Evangelos S. Eleftheriou (1,944 words) [view diff] exact match in snippet view article find links to article
in graph theory as well as for constructing powerful short-block-length LDPC codes, a methodology used extensively f in recording and transmission systems
Quantum key distribution (8,854 words) [view diff] exact match in snippet view article find links to article
this problem can be used for information reconciliation. Lately turbocodes, LDPC codes and polar codes have been used for this purpose improving the efficiency
Patrick Lincoln (2,270 words) [view diff] exact match in snippet view article find links to article
USENIX Workshop on Free and Open Communications on the Internet, 2012 Dynamic LDPC codes for nanoscale memory with varying fault arrival rates, S Gosh, P Lincoln
Permutation polynomial (2,726 words) [view diff] exact match in snippet view article find links to article
doi:10.1109/TIT.2007.896870. Takeshita, Oscar (2005). "A New Construction for LDPC Codes using Permutation Polynomials over Integer Rings". arXiv:cs/0506091
Verification-based message-passing algorithms in compressed sensing (3,547 words) [view diff] exact match in snippet view article find links to article
(help) F. Zhang and H. D. Pfister, “On the iterative decoding of high-rate LDPC codes with applications in compressed sensing,” arXiv preprint arXiv:0903