FEC Extended Encoder: Difference between revisions

From GNU Radio
Jump to navigation Jump to search
No edit summary
(add Parameters and example flowgraph)
 
(One intermediate revision by the same user not shown)
Line 1: Line 1:
[[Category:Block Docs]]
[[Category:Block Docs]]
We are missing info on this block. Please help us remedy to that.  
Forward Error Correction (FEC) is a common technique used in telecommunication systems to control error in the data transmission over noisy transmission channels. The key concept is to encode the signal in a redundant way by using Error Correcting Code (ECC) in the transmitter; this allows the receiver to detect a limited number of error bits in the transmitted signal and often to correct these errors without the need of re-transmitting the signal.  


== Parameters ==
== Parameters ==


; Encoder Objects
; Encoder Objects
: Description of parameter, provide any tips or recommended values.  Note that the name of the parameter above should match the param's label that shows up in grc (e.g. Sample Rate).
: Object defined by an LDPC_Encoder_Definition block


; Threading Type
; Threading Type
: blah blah blah
: options: [capillary, ordinary, none]


; Puncture Pattern
; Puncture Pattern
:  
: default: '11'


== Example Flowgraph ==
== Example Flowgraph ==


Insert description of flowgraph here, then show a screenshot of the flowgraph and the output if there is an interesting GUI. Currently we have no standard method of uploading the actual flowgraph to the wiki or git repo, unfortunately. The plan is to have an example flowgraph showing how the block might be used, for every block, and the flowgraphs will live in the git repo.
This flowgraph can be found at [https://github.com/gnuradio/gnuradio/blob/master/gr-fec/examples/fecapi_ldpc_encoders.grc]
 
[[File:Fecapi_ldpc_encoders_fg.png|800px]]


== Source Files ==
== Source Files ==

Latest revision as of 14:50, 3 December 2020

Forward Error Correction (FEC) is a common technique used in telecommunication systems to control error in the data transmission over noisy transmission channels. The key concept is to encode the signal in a redundant way by using Error Correcting Code (ECC) in the transmitter; this allows the receiver to detect a limited number of error bits in the transmitted signal and often to correct these errors without the need of re-transmitting the signal.

Parameters

Encoder Objects
Object defined by an LDPC_Encoder_Definition block
Threading Type
options: [capillary, ordinary, none]
Puncture Pattern
default: '11'

Example Flowgraph

This flowgraph can be found at [1]

Fecapi ldpc encoders fg.png

Source Files

Python files
[2]
Block definition
[3]
Retrieved from "https://wiki.gnuradio.org/index.php?title=FEC_Extended_Encoder&oldid=7852"