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message passing
(665 results)
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Decoding Network Codes by Message Passing
April 21, 2009 12:00am PDT
In this paper, the authors show how to construct a factor graph from a network code. This provides a systematic framework for decoding using message passing algorithms. The proposed message...
Provided by: University of South Australia
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White Papers
ES-MPICH2: A Message Passing Interface With Enhanced Security
January 5, 2011 12:00am PST
In largely distributed clusters, computing nodes are geographically deployed in various computing sites. Information processed in a distributed cluster is shared among a group of distributed...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Two-Bit Message Passing Decoders for LDPC Codes Over the Binary Symmetric Channel
March 7, 2009 12:00am PST
In this paper, the authors consider quantized decoding of LDPC codes on the binary symmetric channel. The binary message passing algorithms, while allowing extremely fast hardware implementation,...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Towards Optimal MAC without Message Passing in Wireless Networks
June 19, 2009 12:00am PDT
One of the key messages in significant research on cross-layer design of wireless networks over the past 15 years is that extensive message passing may be necessary to achieve optimal performance....
Provided by: Association for Computing Machinery
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White Papers
Distributed Message Passing for Large Scale Graphical Models
June 6, 2011 12:00am PDT
In this paper, the authors propose a distributed message-passing algorithm for inference in large scale graphical models. Their method can handle large problems efficiently by distributing and...
Provided by: ETH Zurich
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White Papers
Message-Passing for Wireless Scheduling: An Experimental Study
August 30, 2010 12:00am PDT
In the recent years, message-passing paradigm has emerged as a canonical algorithmic solution to solve network-wide problems by means of minimal local information exchange, across variety of...
Provided by: Politecnico di Torino
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White Papers
Message Analysis for Concurrent Programs Using Message Passing
January 1, 2012 12:00am PST
The authors describe an analysis-driven storage allocation scheme for concurrent systems that use message passing with copying semantics. The basic principle is that in such a system, data which...
Provided by: Association for Computing Machinery
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White Papers
Utility-Optimal Random Access Without Message Passing
October 30, 2008 12:00am PDT
Random access has been studied for decades to achieve simple wireless Medium Access Control (MAC). Some of the distributed scheduling algorithms for throughput or utility maximization also take...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Self-Similarity in Message Passing Parallel Processing Communication
May 16, 2008 12:00am PDT
Communication performance analysis of message passing parallel programs relies on accurate modeling of cluster network traffic patterns. To this end the authors have developed a tool for...
Provided by: Claremont Graduate University
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White Papers
Utility-Optimal Random Access: Optimal Performance Without Frequent Explicit Message Passing
December 24, 2007 12:00am PST
This paper proposes a distributed random Medium Access Control (MAC) algorithm for wireless ad hoc networks based on the framework of Network Utility Maximization (NUM). Compared with the related...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
EXIT Chart Analysis of Binary Message-Passing Decoders
June 29, 2007 12:00am PDT
Binary message-passing decoders for LDPC codes are analyzed using EXIT charts. For the analysis, the variable node decoder performs all computations in the L-value domain. For the special case of...
Provided by: Aalborg University
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White Papers
Optimizing a Multi-Core Processor for Message-Passing Workloads
April 6, 2009 12:00am PDT
Future large-scale multi-cores will likely be best suited for use within High-Performance Computing (HPC) domains. A large fraction of HPC workloads employ the Message Passing Interface (MPI), yet...
Provided by: University of Utah
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White Papers
Multi-Mode Message Passing Switch Networks Applied for QC-LDPC Decoder
June 9, 2008 12:00am PDT
The multi-mode message passing switch networks for multi-standard QC-LDPC decoder are presented. An enhanced self-routing switch network with only one barrel shifter permutation structure and a...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Using Partial Reconfiguration and Message Passing to Enable FPGA-Based Generic Computing Platforms
August 22, 2011 12:00am PDT
Partial Reconfiguration (PR) is an FPGA feature that allows the modification of certain parts of an FPGA while the rest of the system continues to operate without disruption. This distinctive...
Provided by: Hindawi Publishing
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White Papers
SAMPL: A Simple Aggregation and Message Passing Layer for Sensor Networks
November 19, 2008 12:00am PST
In recent years, wireless sensor networking has shown great promise in applications ranging from industrial control, environmental monitoring and inventory tracking. Given the resource-constrained...
Provided by: Association for Computing Machinery
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White Papers
Easy Impossibility Proofs for K-Set Agreement in Message Passing Systems
March 21, 2011 12:00am PDT
Despite of being quite similar agreement problems, consensus and general k-set agreement require surprisingly different techniques for proving the impossibility in asynchronous systems with crash...
Provided by: Nanyang Technological University
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White Papers
Fault-Tolerant Simulation of Message-Passing Algorithms by Mobile Agents
February 27, 2007 12:00am PST
A distributed computing environment typically consists of a collection of autonomous computational entities that can communicate among each-other to perform a common task. The most common model of...
Provided by: Kyushu University
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White Papers
A Simple Message-Passing Algorithm for Compressed Sensing
October 23, 2010 12:00am PDT
Recovery of a vector x from measurements of the form y = Ax has been of central interest in the compressed sensing literature. When restricted to binary vectors, this has been of interest in the...
Provided by: Massachusetts Institute of Technology
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White Papers
Variational Message-Passing for Joint Channel Estimation and Decoding in MIMO-OFDM
October 18, 2010 12:00am PDT
In this contribution, a multi-user receiver for MQAM MIMO-OFDM operating in time-varying and frequency-selective channels is derived. The proposed architecture jointly performs semi-blind...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Towards Utility-Optimal Random Access Without Message Passing
December 23, 2009 12:00am PST
It has been recently suggested by Jiang and Walrand that adaptive Carrier Sense Multiple Access (CSMA) can achieve optimal utility without any message passing in wireless networks. In this paper,...
Provided by: John Wiley & Sons
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