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Introduction:LDPC Codes. PowerPoint PPT Presentation
Introduction:LDPC Codes. - Introduction:LDPC Codes.
Introduction:LDPC Codes.
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LDPC White paper PowerPoint PPT Presentation
LDPC White paper - H.I.T - Holon Institute of Technology, Israel. Error Control Coding Options ... IBIS 2000, July 17-18 2000, Shizuoka, Japan. Turbo-PCCC. Turbo-SCCC. LDPC Codes. RA...
H.I.T - Holon Institute of Technology, Israel. Error Control Coding Options ... IBIS 2000, July 17-18 2000, Shizuoka, Japan. Turbo-PCCC. Turbo-SCCC. LDPC Codes. RA...
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Error Correction and LDPC decoding PowerPoint PPT Presentation
Error Correction and LDPC decoding - Error Correction and LDPC decoding * * * Serial decoder process one message at a time using one check node and one v node processors. Although they have minimal ...
Error Correction and LDPC decoding * * * Serial decoder process one message at a time using one check node and one v node processors. Although they have minimal ...
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Interconnect Efficient LDPC Code Design PowerPoint PPT Presentation
Interconnect Efficient LDPC Code Design - Aiman El-Maleh Basil Arkasosy Adnan Al-Andalusi King Fahd University of Petroleum & Minerals, Saudi Arabia
Aiman El-Maleh Basil Arkasosy Adnan Al-Andalusi King Fahd University of Petroleum & Minerals, Saudi Arabia
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Properties of LDPC Codes PowerPoint PPT Presentation
Properties of LDPC Codes - If each row is of fixed weight wr and column is of fixed weight wc, then it ... organization has more flexibility than parallel hardwired one in recently years. ...
If each row is of fixed weight wr and column is of fixed weight wc, then it ... organization has more flexibility than parallel hardwired one in recently years. ...
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Modern Coding Theory: LDPC Codes PowerPoint PPT Presentation
Modern Coding Theory: LDPC Codes - Modern Coding Theory: LDPC Codes. Hossein Pishro-Nik. University of Massachusetts Amherst ... Modern coding: LDPC codes. Practical challenges ...
Modern Coding Theory: LDPC Codes. Hossein Pishro-Nik. University of Massachusetts Amherst ... Modern coding: LDPC codes. Practical challenges ...
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Considerations for LDPC codes selection PowerPoint PPT Presentation
Considerations for LDPC codes selection - ... Gaia, Herschel-Planck) X Band at e.g. 10 Mbps 50 MHz available in total; No more than 10 MHz per mission GMSK Modulation Bandwith efficient codes required BW ...
... Gaia, Herschel-Planck) X Band at e.g. 10 Mbps 50 MHz available in total; No more than 10 MHz per mission GMSK Modulation Bandwith efficient codes required BW ...
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Application of Nonbinary LDPC Codes PowerPoint PPT Presentation
Application of Nonbinary LDPC Codes - For nonbinary codes, the ones in parity check matrix are replaced by nonzero elements in GF(q) ... Direct computation has huge complexity! Nonbinary LDPC decoding ...
For nonbinary codes, the ones in parity check matrix are replaced by nonzero elements in GF(q) ... Direct computation has huge complexity! Nonbinary LDPC decoding ...
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Design of Nonbinary LDPC Codes PowerPoint PPT Presentation
Design of Nonbinary LDPC Codes - [1] S. ten Brink, G. Kramer, and A. Ashikhmin, 'Design of low-density parity ... G. Kramer and S. ten Brink 'Extrinsic Information Transfer Functions: Model and ...
[1] S. ten Brink, G. Kramer, and A. Ashikhmin, 'Design of low-density parity ... G. Kramer and S. ten Brink 'Extrinsic Information Transfer Functions: Model and ...
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Progress report of LDPC codes PowerPoint PPT Presentation
Progress report of LDPC codes - mediate, besides min sum organization, needing more two way comparator and one adder. ... By Hagenauer IEEE trans on Information theory 1996 ...
mediate, besides min sum organization, needing more two way comparator and one adder. ... By Hagenauer IEEE trans on Information theory 1996 ...
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Architecture and Implementation of LDPC Decoder PowerPoint PPT Presentation
Architecture and Implementation of LDPC Decoder - HD(v4)=1if =0 else. An Example: RS-based LDPC* Construction ... Construct Cb(1) as a subcode of Cb containing all multiples of a c in Cb whose weight is r. ...
HD(v4)=1if =0 else. An Example: RS-based LDPC* Construction ... Construct Cb(1) as a subcode of Cb containing all multiples of a c in Cb whose weight is r. ...
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LDPC FEC for IEEE 802.11n Applications PowerPoint PPT Presentation
LDPC FEC for IEEE 802.11n Applications - IEEE 802.11n Applications Eric Jacobsen Intel Labs Communications Technology Laboratory November 10, 2003 Agenda Background why LDPCs? Fitting LDPCs to WLAN ...
IEEE 802.11n Applications Eric Jacobsen Intel Labs Communications Technology Laboratory November 10, 2003 Agenda Background why LDPCs? Fitting LDPCs to WLAN ...
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Turbo and LDPC Codes: Implementation, Simulation, and Standardization PowerPoint PPT Presentation
Turbo and LDPC Codes: Implementation, Simulation, and Standardization - Turbo and LDPC Codes: Implementation, Simulation, and Standardization June 7, 2006 Matthew Valenti Rohit Iyer Seshadri West Virginia University Morgantown, WV 26506-6109
Turbo and LDPC Codes: Implementation, Simulation, and Standardization June 7, 2006 Matthew Valenti Rohit Iyer Seshadri West Virginia University Morgantown, WV 26506-6109
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LDPC Belief Propagation Decoding with Multi-Threading and Hardware Acceleration PowerPoint PPT Presentation
LDPC Belief Propagation Decoding with Multi-Threading and Hardware Acceleration - LDPC Belief Propagation Decoding with Multi-Threading and Hardware Acceleration Computer Architecture Project Low-Density Parity-Check Codes Belief Propagation ...
LDPC Belief Propagation Decoding with Multi-Threading and Hardware Acceleration Computer Architecture Project Low-Density Parity-Check Codes Belief Propagation ...
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Aggregated Circulant Matrix Based LDPC Codes PowerPoint PPT Presentation
Aggregated Circulant Matrix Based LDPC Codes - Aggregated Circulant Matrix Based LDPC Codes Yuming Zhu and Chaitali Chakrabarti Department of Electrical Engineering Arizona State University, Tempe
Aggregated Circulant Matrix Based LDPC Codes Yuming Zhu and Chaitali Chakrabarti Department of Electrical Engineering Arizona State University, Tempe
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Optimizing LDPC Codes for message-passing decoding. PowerPoint PPT Presentation
Optimizing LDPC Codes for message-passing decoding. - Developed a version of the Mastermind game as a model for autonomous inference. ... In D.E, we convolve message densities: Familiar Example: ...
Developed a version of the Mastermind game as a model for autonomous inference. ... In D.E, we convolve message densities: Familiar Example: ...
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Turbo and LDPC Codes: Implementation, Simulation, and Standardization PowerPoint PPT Presentation
Turbo and LDPC Codes: Implementation, Simulation, and Standardization - Tanner graphs and the message passing algorithm. Standard binary LDPC codes: DVB-S2 ... Combining high-order modulation with a binary capacity approaching code. ...
Tanner graphs and the message passing algorithm. Standard binary LDPC codes: DVB-S2 ... Combining high-order modulation with a binary capacity approaching code. ...
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The Role of Specialization in LDPC Codes PowerPoint PPT Presentation
The Role of Specialization in LDPC Codes - Encoder chooses the mth codeword in codebook C and transmits it across the channel ... In D.E, we convolve message densities: Familiar Example: ...
Encoder chooses the mth codeword in codebook C and transmits it across the channel ... In D.E, we convolve message densities: Familiar Example: ...
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Compression of Correlated Sources Using LDPC Codes PowerPoint PPT Presentation
Compression of Correlated Sources Using LDPC Codes - Trellis representing the HMM has two parallel branches between states ... Apply forward/backward equations over the trellis describing the HMM ...
Trellis representing the HMM has two parallel branches between states ... Apply forward/backward equations over the trellis describing the HMM ...
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MinimumEnergy LDPC Decoder for RealTime Mobile Application ' PowerPoint PPT Presentation
MinimumEnergy LDPC Decoder for RealTime Mobile Application ' - Weihuang Wang, Gwan Choi, Design Automation & Test in Europe Conference ... Operating at low clock frequency, the voltage supply can be lowered correspondingly. ...
Weihuang Wang, Gwan Choi, Design Automation & Test in Europe Conference ... Operating at low clock frequency, the voltage supply can be lowered correspondingly. ...
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Performance of LDPC Codes Under Noisy MessagePassing Decoding PowerPoint PPT Presentation
Performance of LDPC Codes Under Noisy MessagePassing Decoding - Concentration around Ensemble Average. Convergence to Cycle-free Performance ... Concentration: Ensemble Average ... Concentration around Cycle-Free Case ...
Concentration around Ensemble Average. Convergence to Cycle-free Performance ... Concentration: Ensemble Average ... Concentration around Cycle-Free Case ...
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Simularea software a codurilor LDPC pentru canale magnetice si analiza performantelor lor PowerPoint PPT Presentation
Simularea software a codurilor LDPC pentru canale magnetice si analiza performantelor lor - SIMULAREA SOFTWARE A CODURILOR LDPC PENTRU CANALE MAGNETICE SI ANALIZA PERFORMANTELOR LOR Autor: Florescu Iulian Cosmin Coordonatori: Conf. dr. ing. Stancescu Stefan
SIMULAREA SOFTWARE A CODURILOR LDPC PENTRU CANALE MAGNETICE SI ANALIZA PERFORMANTELOR LOR Autor: Florescu Iulian Cosmin Coordonatori: Conf. dr. ing. Stancescu Stefan
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Code and Decoder Design of LDPC Codes for Gbps Systems PowerPoint PPT Presentation
Code and Decoder Design of LDPC Codes for Gbps Systems - For y1,...yn independent conditionally on x: Probability ... Drawback: it is difficult to construct any graph that has the performance of random graph. ...
For y1,...yn independent conditionally on x: Probability ... Drawback: it is difficult to construct any graph that has the performance of random graph. ...
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LDPC vs. Convolutional Codes: Performance and Complexity Comparison PowerPoint PPT Presentation
LDPC vs. Convolutional Codes: Performance and Complexity Comparison - LDPC vs. Convolutional Codes: Performance and Complexity Comparison March 2004 Aleksandar Purkovic, Sergey Sukobok, Nina Burns Nortel Networks (contact: apurkovi@ ...
LDPC vs. Convolutional Codes: Performance and Complexity Comparison March 2004 Aleksandar Purkovic, Sergey Sukobok, Nina Burns Nortel Networks (contact: apurkovi@ ...
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Scalable Image Transmission Using UEP Optimized LDPC Codes PowerPoint PPT Presentation
Scalable Image Transmission Using UEP Optimized LDPC Codes - Define and optimize variable node distribution for each class Ck : ... Chart, a technique to aid the construction of iteratively-decoded error-corr ...
Define and optimize variable node distribution for each class Ck : ... Chart, a technique to aid the construction of iteratively-decoded error-corr ...
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Improved ProgressiveEdgeGrowth PEG Construction of Irregular LDPC Codes PowerPoint PPT Presentation
Improved ProgressiveEdgeGrowth PEG Construction of Irregular LDPC Codes - Problem: Short cycles are not good for iterative decoding ... The addition of Eksj to the graph creates new cycles all with length 2(l 2) ...
Problem: Short cycles are not good for iterative decoding ... The addition of Eksj to the graph creates new cycles all with length 2(l 2) ...
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LDPC Codes for Fading Channels: Two Strategies PowerPoint PPT Presentation
LDPC Codes for Fading Channels: Two Strategies - Also known as the block interference channel introduced by McEliece and ... block fading channel with i.i.d. blocks, each with crossover probability 0 or ...
Also known as the block interference channel introduced by McEliece and ... block fading channel with i.i.d. blocks, each with crossover probability 0 or ...
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Performances of LDPC-Error Detecting Concatenated Codes Used in Adaptive OFDM Transmissions PowerPoint PPT Presentation
Performances of LDPC-Error Detecting Concatenated Codes Used in Adaptive OFDM Transmissions - LDPC code concatenated with error detecting codes consider an n -bit long LDPC code, n high (several hundred at least) concatenated with m error detecting ...
LDPC code concatenated with error detecting codes consider an n -bit long LDPC code, n high (several hundred at least) concatenated with m error detecting ...
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Belief-Propagation with Information Correction: Near Maximum-Likelihood Decoding of LDPC Codes PowerPoint PPT Presentation
Belief-Propagation with Information Correction: Near Maximum-Likelihood Decoding of LDPC Codes - Division of Engineering and Applied Sciences. March 2004 ... Division of Engineering and Applied Sciences. Harvard University ...
Division of Engineering and Applied Sciences. March 2004 ... Division of Engineering and Applied Sciences. Harvard University ...
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LDPC vs. Convolutional Codes for 802.11n Applications: Performance Comparison PowerPoint PPT Presentation
LDPC vs. Convolutional Codes for 802.11n Applications: Performance Comparison - LDPC vs. Convolutional Codes for 802.11n Applications: Performance Comparison January 2004 Aleksandar Purkovic, Nina Burns, Sergey Sukobok, Levent Demirekler
LDPC vs. Convolutional Codes for 802.11n Applications: Performance Comparison January 2004 Aleksandar Purkovic, Nina Burns, Sergey Sukobok, Levent Demirekler
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Simulation of Finite Geometry LDPC code on the Packet Erasure channel PowerPoint PPT Presentation
Simulation of Finite Geometry LDPC code on the Packet Erasure channel - It's the same for all other source symbols. ... the encoder) to save the parity symbols, for larger code rate, for example, the ...
It's the same for all other source symbols. ... the encoder) to save the parity symbols, for larger code rate, for example, the ...
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Low-Complexity error correction in LDPC Codes with Constituent RS Codes PowerPoint PPT Presentation
Low-Complexity error correction in LDPC Codes with Constituent RS Codes - Estimation of the number decoding algorithm iterations. ... Lemma1: For decoding algorithm convergence required that, in each iteration the ...
Estimation of the number decoding algorithm iterations. ... Lemma1: For decoding algorithm convergence required that, in each iteration the ...
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Application of Finite Geometry LDPC code on the Internet Data Transport PowerPoint PPT Presentation
Application of Finite Geometry LDPC code on the Internet Data Transport - Title: WLAN Author: huangyingxin Last modified by: wuyuchun Created Date: 3/13/2003 7:15:42 AM Document presentation format:
Title: WLAN Author: huangyingxin Last modified by: wuyuchun Created Date: 3/13/2003 7:15:42 AM Document presentation format:
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The Design of the MaximumLikelihood Decoding Algorithm of LDPC Codes over BEC PowerPoint PPT Presentation
The Design of the MaximumLikelihood Decoding Algorithm of LDPC Codes over BEC - Computational Complexities. Simulation Results. Conclusion ... 4. Computational Complexity. Number of symbol additions by the post-decoding ...
Computational Complexities. Simulation Results. Conclusion ... 4. Computational Complexity. Number of symbol additions by the post-decoding ...
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LDPC Codes Based on Cyclotomic Cosets Mina Sartipi and Faramarz Fekri Georgia Institute of Technolog PowerPoint PPT Presentation
LDPC Codes Based on Cyclotomic Cosets Mina Sartipi and Faramarz Fekri Georgia Institute of Technolog - Tanner graph representation: Variable node. Check node. Variable node. H ... Cycle Four in Tanner Graph. A path of length four that closes back on itself: ...
Tanner graph representation: Variable node. Check node. Variable node. H ... Cycle Four in Tanner Graph. A path of length four that closes back on itself: ...
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A Thresholding Algorithm for Improved SplitRow Decoding of LDPC Codes 1Tinoosh Mohsenin, 2Pascal Ura PowerPoint PPT Presentation
A Thresholding Algorithm for Improved SplitRow Decoding of LDPC Codes 1Tinoosh Mohsenin, 2Pascal Ura - A Thresholding Algorithm for Improved Split-Row Decoding of LDPC Codes ... University of California, Davis, (2) STMicroelectronics , Crolles Codex, France ...
A Thresholding Algorithm for Improved Split-Row Decoding of LDPC Codes ... University of California, Davis, (2) STMicroelectronics , Crolles Codex, France ...
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Parity Augmentation PowerPoint PPT Presentation
Parity Augmentation - Parity Augmentation An Alternative Approach to LDPC Decoding
Parity Augmentation An Alternative Approach to LDPC Decoding
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Improving the encoding and the decoding process of low-density parity-check codes for novel applications PowerPoint PPT Presentation
Improving the encoding and the decoding process of low-density parity-check codes for novel applications - Introduction Digital Communications Digital Communication Block Low-Density Parity-Check Codes (LDPC Codes) ...
Introduction Digital Communications Digital Communication Block Low-Density Parity-Check Codes (LDPC Codes) ...
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The Physics of Algorithms: a new approach to information science PowerPoint PPT Presentation
The Physics of Algorithms: a new approach to information science - decoding (instance of the algorithm) - non-equilibrium stat.phys problem with disorder data storage supercomputers ... ANALYSIS + DESIGN LDPC, ...
decoding (instance of the algorithm) - non-equilibrium stat.phys problem with disorder data storage supercomputers ... ANALYSIS + DESIGN LDPC, ...
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Signal Processing for OFDM Communication Systems PowerPoint PPT Presentation
Signal Processing for OFDM Communication Systems - Title: LDPC Overview and Implementation Author: Eric Jacobsen Last modified by: eajacobs Created Date: 12/6/2002 12:58:45 AM Document presentation format
Title: LDPC Overview and Implementation Author: Eric Jacobsen Last modified by: eajacobs Created Date: 12/6/2002 12:58:45 AM Document presentation format
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Noise-Predictive Turbo Equalization for Partial Response Channels PowerPoint PPT Presentation
Noise-Predictive Turbo Equalization for Partial Response Channels - ... Paul H. Siegel and Jack K. Wolf ... LDPC codes are linear block codes, defined by a sparse ... information: 'Turbo Equalization' block replaces LDPC decoder ...
... Paul H. Siegel and Jack K. Wolf ... LDPC codes are linear block codes, defined by a sparse ... information: 'Turbo Equalization' block replaces LDPC decoder ...
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Software Defined Radio PowerPoint PPT Presentation
Software Defined Radio - Low Density Parity Check (LDPC) code. Turbo code like coding gain with lower implementation cost. ... H (Parity check matrix) is large sparse matrix. Implementation ...
Low Density Parity Check (LDPC) code. Turbo code like coding gain with lower implementation cost. ... H (Parity check matrix) is large sparse matrix. Implementation ...
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EEE436 PowerPoint PPT Presentation
EEE436 - For example a (6,3) linear LDPC code given by the following H 0 Construction of Low Density Parity Check (LDPC) codes For example a (6,3) ...
For example a (6,3) linear LDPC code given by the following H 0 Construction of Low Density Parity Check (LDPC) codes For example a (6,3) ...
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Computer science Programming Services In UKComputer_science_Programming_In_UK PowerPoint PPT Presentation
Computer science Programming Services In UKComputer_science_Programming_In_UK - Our team also provides unique implementation and a revolutionary coding technique for binary BCH codes of prime lengths, including encoding and iterative soft-decision decoding. Coding is done on a set of codewords, which are then translated into non-binary low-density parity-check (LDPC) code.
Our team also provides unique implementation and a revolutionary coding technique for binary BCH codes of prime lengths, including encoding and iterative soft-decision decoding. Coding is done on a set of codewords, which are then translated into non-binary low-density parity-check (LDPC) code.
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VLSI Architectures for Iterative Decoders PowerPoint PPT Presentation
VLSI Architectures for Iterative Decoders - Convolutional/ Low Density Parity Check. Soft-Input-Soft-Output (SISO) Decoders ... LDPC decoding with a regular parity check matrix. Total Number of Edges: 18432 ...
Convolutional/ Low Density Parity Check. Soft-Input-Soft-Output (SISO) Decoders ... LDPC decoding with a regular parity check matrix. Total Number of Edges: 18432 ...
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Diapositive 1 PowerPoint PPT Presentation
Diapositive 1 - Format de la trame de donn es & quelques param tres syst me ... Codes choisis : codes en bloc. Codes test s : codes BCH et codes LDPC. BCH (16 11), BCH (63 ...
Format de la trame de donn es & quelques param tres syst me ... Codes choisis : codes en bloc. Codes test s : codes BCH et codes LDPC. BCH (16 11), BCH (63 ...
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Part III Wireline Multiuser Basics PowerPoint PPT Presentation
Part III Wireline Multiuser Basics - Parts 3 and 4: Outline/Schedule. 2:00-2:45 MU Theory. 2:45-3:30 channels for wireline ... Use good (turbo, LDPC) code on green components ...
Parts 3 and 4: Outline/Schedule. 2:00-2:45 MU Theory. 2:45-3:30 channels for wireline ... Use good (turbo, LDPC) code on green components ...
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Outline PowerPoint PPT Presentation
Outline - Local Theory of BER for LDPC Codes: Instantons on a Tree Vladimir Chernyak Department of Chemistry Wayne State University In collaboration with: Misha Chertkov (LANL)
Local Theory of BER for LDPC Codes: Instantons on a Tree Vladimir Chernyak Department of Chemistry Wayne State University In collaboration with: Misha Chertkov (LANL)
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Digital%20Fountains:%20Applications%20and%20Related%20Issues PowerPoint PPT Presentation
Digital%20Fountains:%20Applications%20and%20Related%20Issues - Rateless/Raptor codes. Raptor/Rateless Codes. Properties: 'Infinite' ... pending on irregular LDPC codes, LT codes, Raptor codes by Digital Fountain, Inc. ...
Rateless/Raptor codes. Raptor/Rateless Codes. Properties: 'Infinite' ... pending on irregular LDPC codes, LT codes, Raptor codes by Digital Fountain, Inc. ...
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Recent Advances in Stochastic Decoding PowerPoint PPT Presentation
Recent Advances in Stochastic Decoding - LDPC Codes are the next wave. They provide the best error ... efficient ASICs. Easy, scalable and portable design. Potential for very low-power. G Harling ...
LDPC Codes are the next wave. They provide the best error ... efficient ASICs. Easy, scalable and portable design. Potential for very low-power. G Harling ...
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Low Density Parity Check Codes PowerPoint PPT Presentation
Low Density Parity Check Codes - Low Density Parity Check Codes LDPC ( Low Density Parity Check ) codes are a class of linear bock code. The term Low Density refers to the characteristic of the ...
Low Density Parity Check Codes LDPC ( Low Density Parity Check ) codes are a class of linear bock code. The term Low Density refers to the characteristic of the ...
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Tinoosh Mohsenin, Dean Truong and Bevan M. Baas PowerPoint PPT Presentation
Tinoosh Mohsenin, Dean Truong and Bevan M. Baas - Well suited for long-length and large row weight LDPC codes ... In original MinSum Split-Row each partition has no information of the minimum ...
Well suited for long-length and large row weight LDPC codes ... In original MinSum Split-Row each partition has no information of the minimum ...
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RMT WG Status PowerPoint PPT Presentation
RMT WG Status - (adamson@itd.nrl.navy.mil) Updated Drafts. draft-ietf-rmt-bb-fec-ldpc-03 ... draft-ietf-rmt-fec-bb-revised-04. draft-ietf-rmt-flute-revised-02. Published RFCs ...
(adamson@itd.nrl.navy.mil) Updated Drafts. draft-ietf-rmt-bb-fec-ldpc-03 ... draft-ietf-rmt-fec-bb-revised-04. draft-ietf-rmt-flute-revised-02. Published RFCs ...
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LC33 PowerPoint PPT Presentation
LC33 - 1. Copy PC contents to MAR. enaPC = 1 & ldMAR= 1. 2. Perform ... fetch1. NS. enaPC. ldMAR. selPC. ldPC. enaMDR. ldIR. Current. State. Next. State. Outputs ...
1. Copy PC contents to MAR. enaPC = 1 & ldMAR= 1. 2. Perform ... fetch1. NS. enaPC. ldMAR. selPC. ldPC. enaMDR. ldIR. Current. State. Next. State. Outputs ...
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Channel Coding in IEEE802.16e PowerPoint PPT Presentation
Channel Coding in IEEE802.16e - Student: Po-Sheng Wu. Advisor: David W. Lin. 2. Reference. IEEE Std 802.16a ... in IEEE802.16a need to be terminated in a block, and thus become a block code. ...
Student: Po-Sheng Wu. Advisor: David W. Lin. 2. Reference. IEEE Std 802.16a ... in IEEE802.16a need to be terminated in a block, and thus become a block code. ...
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