Download Shareware and Freeware Software for Windows, Linux, Macintosh, PDA

line Home  |  About Us  |  Link To Us  |  FAQ  |  Contact

Serving Software Downloads in 976 Categories, Downloaded 29.648.076 Times

LDPC/LDGM 2.1

  Date Added: February 13, 2010  |  Visits: 746

LDPC/LDGM

Report Broken Link
Printer Friendly Version


Product Homepage
Download (121 downloads)



LDPC/LDGM is a llarge block forward error correction codec library. It is significantly faster than traditional Reed-Solomon codecs. Traditional small block Forward Error Correction (FEC) codes, like the Reed-Solomon erasure (RSE) code, are known to raise efficiency problems in particular when they are applied to the Asynchronous Layered Coding (ALC) reliable multicast protocol. We have therefore designed a large block FEC codec, derived from the well known Low-Density Parity Check (LDPC) codes, and capable of operating on source blocks that are several tens or hundreds of megabytes long. This work is based on the theoretical work done by Gallager in the early 1960s. Whats New in This Release: - The codec supports any size of symbols (in previous releases, the symbol size had to be multiple of 4). Note that sometimes the packet size must still be a power of two (i.e. if multiple symbols are packed in the same packet). - Improved performances (6.3% relative improvement during encoding, 3.8% during decoding with LDPC-Staircase codes, with a 20,000 symbol object and 2/3 code rate). - Source code clarifications. In particular, the src/ldpc_profile.h file gathers all the codec compilation controls. Don’t hesitate to give a look at it and change when needed. - A new SPARSE_MATRIX_OPT_SMALL_INDEX mode reduces significantly the memory requirements of sparse matrices (the matrix size is decreased by 1/6 on 32-bit systems). - Tested on 64-bit architectures (Pentium D)/Linux. - This version is in line with IETF Internet-Draft: draft-ietf-rmt-bb-fec-ldpc-03.txt (available in the doc/ directory), and is compatible with release 2.0 (but not the 1.* releases). - There is no major change in the API. Yet an LDPCFecSession::GetMaxN() method has been added which can be useful in SPARSE_MATRIX_OPT_SMALL_INDEX mode..

Requirements: No special requirements
Platforms: Linux
Keyword: Block Codec Correction Error Error Correction Forward Forward Error Correction Ldgm Ldpc Ldpcldgm Networking Size System
Users rating: 0/10

License: Freeware Size: 163.84 KB
USER REVIEWS
More Reviews or Write Review


LDPC/LDGM RELATED
Science  -  CUDA-SPHERE-FWD-MEEG 1.0
CUDA-SPHERE-FWD-MEEG is a CUDA C based toolkit which provides a GPU based implementation of the spherical model forward solution for the 306 channel Elekta Neuromag MEG system and the EEG. The 1-Sphere forward solution for the MEG and the 4-Sphere...
21.39 MB  
Productivity  -  Elmah Mobile 1.1.0.0
This application provides a mobile client for viewing error information logged by ELMAH (Error Logging Modules and Handlers). Requires ELMAH to be installed on a website. This application consumes the RSS feed typically found at...
1024 KB  
Simulation Games  -  Melody error game 12
Find error at the melody ear training. find error at the melody. find error at the melody. Online game. find music guitar chord. Music typing ear training. Music type ear training. use this game for training you music notes ability. Note teacher...
50 KB  
Libraries  -  Mac::Errors 1.13
Mac::Errors is a Perl module with constants for Mac error codes. SYNOPSIS use Mac::Errors qw(openErr); if( $value == openErr ) { ... } my $error = $MacErrors{ $symbol }; # -- OR -- my $error = $MacErrors{ $number }; my $symbol =...
54.27 KB  
Libraries  -  errhdl 0.3
errhdl is a small C library that offers error handling methods similar to the exception handling in C++. In the event of errors, no exception objects are thrown, but an error class name and an error message are set, and execution continues at...
6.14 KB  
Mail Clients  -  Secure Email Forward 4.0.4042.30099
Security is at an all time high for everyone and your email is no exception. Stay secure by keeping the content of your email messages within the boundaries of your systems. With Secure Email Forward, only limited parts of an email get forwarded...
 
Audio Tools  -  MAutoPitch x64 5.06
MAutoPitch is a simple automatic pitch correction plugin designed for vocals and other monophonic instruments. Besides its main purpose of making the audio more in-tune, MAutoPitch provides also a few creative such as formant shift and...
44.4 MB  
Audio Tools  -  MAutoPitch 5.06
MAutoPitch is a simple automatic pitch correction plugin designed for vocals and other monophonic instruments. Besides its main purpose of making the audio more in-tune, MAutoPitch provides also a few creative such as formant shift and...
24.7 MB  
Audio Tools  -  MAutoPitch for Mac OS X 5.06
MAutoPitch is a simple automatic pitch correction plugin designed for vocals and other monophonic instruments. Besides its main purpose of making the audio more in-tune, MAutoPitch provides also a few creative such as formant shift and...
75.3 MB  
Educational Games  -  Find error at the melody ear training 9
Find error at the melody ear training. find error at the melody. find error at the melody.
50 KB  
NEW DOWNLOADS IN NETWORK & INTERNET, NETWORKING TOOLS
Network & Internet  -  Free WiFi Hotspot 3.3.1
Free WiFi Hotspot is a super easy solution to turn your laptop or notebook into a portable Wi-Fi hotspot, wirelessly sharing your internet connections like DSL, Cable, Bluetooth, Mobile Broadband Card, Dial-Up, etc. through the built-in wireless...
1.04 MB  
Network & Internet  -  Easy Uploads 1.8
Easy uploads is a file storage media streaming application designed by Filestreamers that allows you to upload, store, and stream your files from their virtually unlimited file storage server. Easy Uploads can backup,share, and stream your files...
615.97 KB  
Network & Internet  -  IPv6 CARE 3.2b
IPv6 CARE, "IPv6 Compliant Automatic Runtime Environment", is a Linux tool able to patch ipv6-agnostic programs on-the-fly ('patch' mode). It can also generate a diagnosis about the IPv6 compliance of an application ('check' mode).
409.6 KB  
Network & Internet  -  PacketFence ZEN 3.1.0
PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) system. Boosting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, 802.1X...
1024 MB  
Network & Internet  -  django-dbstorage 1.3
A Django file storage backend for files in the database.
10.24 KB  
Networking Tools  -  gvrpad 0.1
gvrpad is a daemon that makes GVRP announcements of all VLAN interfaces on a FreeBSD system. GVRP is the GARP VLAN Registration Protocol, defined in IEEE 802.1Q (VLANS); GARP is the Generic Attribute Registration Protocol, defined in 802.1D...
15.36 KB  
Networking Tools  -  Cheops 0.61
Cheops is an Open Source Network User Interface. It is designed to be the network equivalent of a swiss-army knife, unifying your network utilities. Cheops is for the network what a file manager is for your filesystem..
317.44 KB  
Networking Tools  -  dynacc 0.5.0
Dynacc aims to be a Pakage which gives you control other your Internet Connection. It runs a linux router/host which provides MASQ services and HTTP proxying for a LAN. It gives you the Power to define users/groups which are allowed to make...
122.88 KB  
Networking Tools  -  ssh tunnel on demand 1.0
ssh tunnel on demand provides a script that creates an SSH tunnel on demand. ssh tunnel on demand is a script that makes it possible for a user to create an SSH tunnel to a server and connect to it without needing an account on the box or any...
13.31 KB  
Networking Tools  -  strongSwan 4.1.5
strongSwan is an OpenSource IPsec implementation for the Linux operating system. strongSwan is an OpenSource IPsec implementation for the Linux operating system. In order to have a stable IPsec platform to base our future extensions of the X.509...
1.7 MB