Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


wreck90

780 posts

Ultimate Geek
Inactive user


#61632 20-May-2010 10:02
Send private message

Not only did my ping speed drop from 42ms to 23ms, my speed increased from around 17,000 to 21,000.....


From modem webpage....

'''Current DSL Connection: '''
 
Down Up
Rate:
21209 kbs
 752 kbs
Max Rate:
21209 kbs
 840 kbs 
 

And , from speedtest...




Nice, thanks telecom.



Create new topic
NZCoderGuy
513 posts

Ultimate Geek
+1 received by user: 1

Trusted
Kiwi Dev Studios

  #332146 20-May-2010 10:10
Send private message

I've never understood what Interleaving actually is, nor what is actually does.. anyone want to enlighten me?




--
Stephen
twitter/ NZCoderGuy / KiwiDevStudios

Kiwi Dev Studios




wreck90

780 posts

Ultimate Geek
Inactive user


  #332148 20-May-2010 10:12
Send private message

gtxboyracer: I've never understood what Interleaving actually is, nor what is actually does.. anyone want to enlighten me?


It is an error correction function.  Useful for poorer quality lines. 

But, because of the extra processing, your ping and line speeds decrease. 

 

Buttonmash
361 posts

Ultimate Geek
+1 received by user: 1


  #332222 20-May-2010 11:11
Send private message

Chops packets over several to improve error checking, which increases your latency.



l43a2
1784 posts

Uber Geek
+1 received by user: 591

ID Verified
Trusted

  #332311 20-May-2010 13:01
Send private message

wreck90: Not only did my ping speed drop from 42ms to 23ms, my speed increased from around 17,000 to 21,000.....


From modem webpage....

'''Current DSL Connection: '''
 
Down Up
Rate:
21209 kbs
 752 kbs
Max Rate:
21209 kbs
 840 kbs 
 

And , from speedtest...




Nice, thanks telecom.




looks good :)






cyril7
9073 posts

Uber Geek
+1 received by user: 2499

ID Verified
Trusted
Subscriber

  #332328 20-May-2010 13:22
Send private message

To be a little more informative, interleaving is when a length of data (interleaving depth) is cued up, then broken in to sub sections, the sub sections are then re ordered, a bit like shuffling a pack of cards, but in a known sequence. This whole length of data is then sent.

At the receiving end the shuffling of the subsections is reversed so you end up with the original length of data, but to do this the whole sequency length must be recieved then unshuffled, this results in a delay.

The idea is that if a burst of noise impacts on that length of data then its impact is now scattered across the length of data stream rather than all in one part of the data stream. This makes it easier for other error correction schemes that are also to follow this process (in particular convolutional coding that uses a Viterbi Forward error corrector) to work correctly, ie they deal better with little bits of noise over a bigger area or length, than a large single section of data thats damaged.


Hope this helps
Cyril

Create new topic








Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.