25 Urbanke PPTs View free & download

Andrea Montanari and Ruediger Urbanke PowerPoint PPT Presentation

Andrea Montanari and Ruediger Urbanke - Message-Passing Decoding -- BSCGallager Algorithm. Asymptotic Analysis: Computation Graph ... Linearized Decoding Algorithm. Proof Outline. linearize the algorithm ...

Message-Passing Decoding -- BSCGallager Algorithm. Asymptotic Analysis: Computation Graph ... Linearized Decoding Algorithm. Proof Outline. linearize the algorithm ...

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Embracing%20Wireless%20Interference:%20Analog%20Network%20Coding PowerPoint PPT Presentation

Embracing%20Wireless%20Interference:%20Analog%20Network%20Coding - Multiple user access channel ? Curious assertions: ... [1] B. Rimoldi and R. Urbanke, 'A rate splitting approach to the Gaussian ...

Multiple user access channel ? Curious assertions: ... [1] B. Rimoldi and R. Urbanke, 'A rate splitting approach to the Gaussian ...

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What is Coding PowerPoint PPT Presentation

What is Coding - What is Coding? Coding is the conversion of information to another form for some ... Source Coding : The purpose is lowering the redundancy in the information. ...

What is Coding? Coding is the conversion of information to another form for some ... Source Coding : The purpose is lowering the redundancy in the information. ...

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Simple PCPs - Error-Correcting Codes: Progress & Challenges Madhu Sudan MIT CSAIL Communication in presence of noise Shannon s Model: Probabilistic Noise Hamming Model: Worst ...

Error-Correcting Codes: Progress & Challenges Madhu Sudan MIT CSAIL Communication in presence of noise Shannon s Model: Probabilistic Noise Hamming Model: Worst ...

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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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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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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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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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Inspiration from Information Theory PowerPoint PPT Presentation

Inspiration from Information Theory - The algorithm converges on cycle-free graphs in a finite number of steps giving ... Design a Sudoku solver, using belief propagation on a suitable constraint graph ...

The algorithm converges on cycle-free graphs in a finite number of steps giving ... Design a Sudoku solver, using belief propagation on a suitable constraint graph ...

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Counter Braids A novel counter architecture for network measurement PowerPoint PPT Presentation

Counter Braids A novel counter architecture for network measurement - ... Threshold Computation of Threshold Computation of Threshold Comparison with Linear Programming Decoder Relation to Compressed Sensing Comparison ...

... Threshold Computation of Threshold Computation of Threshold Comparison with Linear Programming Decoder Relation to Compressed Sensing Comparison ...

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Low Density Generator Matrix Codes PowerPoint PPT Presentation

Low Density Generator Matrix Codes - U2 = U1 e, e := correlation vector. Assumption: Source U2 is perfectly known at the decoder same problem as channel ... u2,c2,out,u2,c2,out... ECE Signal ...

U2 = U1 e, e := correlation vector. Assumption: Source U2 is perfectly known at the decoder same problem as channel ... u2,c2,out,u2,c2,out... ECE Signal ...

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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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Generating Code Representations Suitable for Belief Propagation Decoding PowerPoint PPT Presentation

Generating Code Representations Suitable for Belief Propagation Decoding - Output: 495 by 230 GPC matrix with 3-5 ones per row ... GPC Matrices for EG Code ... We have presented a particular algorithm for transforming GPC matrices. ...

Output: 495 by 230 GPC matrix with 3-5 ones per row ... GPC Matrices for EG Code ... We have presented a particular algorithm for transforming GPC matrices. ...

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Information-Theoretic Security PowerPoint PPT Presentation

Information-Theoretic Security - k-bit decoded message Wb. Alice. Bob. If Eve does not know the key and P(Key=k-tuple)=1/2k ... k-bit decoded message Wb. key K. key K. X. X. X. Shannon's Model ...

k-bit decoded message Wb. Alice. Bob. If Eve does not know the key and P(Key=k-tuple)=1/2k ... k-bit decoded message Wb. key K. key K. X. X. X. Shannon's Model ...

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Error correction on a tree: Instanton approach PowerPoint PPT Presentation

Error correction on a tree: Instanton approach - Tree -- no loops -- approximation. MAP. BP. Belief Propagation is ... 'zero momentum' configuration/approximation. guarantees estimation. from above for eff. ...

Tree -- no loops -- approximation. MAP. BP. Belief Propagation is ... 'zero momentum' configuration/approximation. guarantees estimation. from above for eff. ...

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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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Improving analysis and performance of modern error-correction schemes PowerPoint PPT Presentation

Improving analysis and performance of modern error-correction schemes - UoC, 04/10/06 Misha Chertkov (Theory Division, LANL) Vladimir Chernyak (Department of Chemistry, Wayne State) Misha Stepanov (Theory Division, LANL)

UoC, 04/10/06 Misha Chertkov (Theory Division, LANL) Vladimir Chernyak (Department of Chemistry, Wayne State) Misha Stepanov (Theory Division, LANL)

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Low Density Generator Matrix Codes - ... to the state-of-the-art. Serial and parallel structure. Code ... If s is the all zero vector, claim no error. Otherwise, claim error ... correlation vector ...

... to the state-of-the-art. Serial and parallel structure. Code ... If s is the all zero vector, claim no error. Otherwise, claim error ... correlation vector ...

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A Blind Equalization Technique for Unitary Spacetime Coded Systems PowerPoint PPT Presentation

A Blind Equalization Technique for Unitary Spacetime Coded Systems - Matrix constellation. Unitary definition: Unitary space-time modulation ... Maximum energy. achieved. CMA for multi-user signal separation and equalization ...

Matrix constellation. Unitary definition: Unitary space-time modulation ... Maximum energy. achieved. CMA for multi-user signal separation and equalization ...

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Ordered Subsets MessagePassing PowerPoint PPT Presentation

Ordered Subsets MessagePassing - Joint equalization and decoding for channels having 2-D ISI ... For Decoding Measured data is grouped into subsets to eliminate short length ...

Joint equalization and decoding for channels having 2-D ISI ... For Decoding Measured data is grouped into subsets to eliminate short length ...

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SOME REMARKS ABOUT A POSSIBLE NEW STANDARD FOR TELEMETRY CHANNEL CODING WITH HIGH SPECTRAL EFFICIENC PowerPoint PPT Presentation

SOME REMARKS ABOUT A POSSIBLE NEW STANDARD FOR TELEMETRY CHANNEL CODING WITH HIGH SPECTRAL EFFICIENC - Low density parity check codes (LDPCC) Methods of analysis ... parity code as constituent codes ... Low-Density Parity-Check Codes' ...

Low density parity check codes (LDPCC) Methods of analysis ... parity code as constituent codes ... Low-Density Parity-Check Codes' ...

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Accurate Calculation of PowerPoint PPT Presentation

Accurate Calculation of - B. A. Berg and T. Neuhaus, 'Multicanonical ensemble: A new approach to simulate ... B. A. Berg, 'Algorithmic aspects of multicanonical Monte Carlo simulations,' Nucl. ...

B. A. Berg and T. Neuhaus, 'Multicanonical ensemble: A new approach to simulate ... B. A. Berg, 'Algorithmic aspects of multicanonical Monte Carlo simulations,' Nucl. ...

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Discrete Probability on Graphs: Estimation, Reconstruction of - Discrete Probability on Graphs: Estimation, Reconstruction of

Discrete Probability on Graphs: Estimation, Reconstruction of

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Multi-Gigabit Wireless Multimedia Communications: Future and Core Technologies* PowerPoint PPT Presentation

Multi-Gigabit Wireless Multimedia Communications: Future and Core Technologies* - ... cognitive radio Lutz Lampe modulation and coding, MIMO systems, CDMA, ultra-wideband (UWB), wireless sensor networks Cyril Leung wireless ...

... cognitive radio Lutz Lampe modulation and coding, MIMO systems, CDMA, ultra-wideband (UWB), wireless sensor networks Cyril Leung wireless ...

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Architectures and Implementations of PowerPoint PPT Presentation

Architectures and Implementations of - Engling Yeo, Borivoje Nikolic, and Venkat Anantharam ... G. Al-Rawi, J. Cioffi, and M. Horowitz, 'Optimizing the mapping of low-density ...

Engling Yeo, Borivoje Nikolic, and Venkat Anantharam ... G. Al-Rawi, J. Cioffi, and M. Horowitz, 'Optimizing the mapping of low-density ...

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Urbanke PowerPoint PPT Presentations