The Designer's Guide Community
Forum
Welcome, Guest. Please Login or Register. Please follow the Forum guidelines.
Sep 27th, 2021, 12:49pm
Pages: 1
Send Topic Print
BER (Read 3582 times)
raja.cedt
Senior Fellow
******
Offline



Posts: 1516
Germany
BER
Jan 21st, 2012, 12:50pm
 
hello all,
On what basis people decide targeted BER, like many system designers prefer 10^-12 in most of the cases, and i heard old TV and small length communication people preferred even 10^-20. I have some understanding on BER like total invariance of the noise relation to some specific number, but would like to know fundamental reason behind choosing BER target?

Thanks,
Raj.
Back to top
 
 
View Profile WWW raja.sekhar86   IP Logged
loose-electron
Senior Fellow
******
Offline

Best Design Tool =
Capable Designers

Posts: 1638
San Diego California
Re: BER
Reply #1 - Jan 21st, 2012, 7:09pm
 
the defined need for a specified BER is more at the system level than the PHY level.

Up in the DSP part of the system application of
protocols - redundancy - ECC will allow for different
error rates that can be tolerated.

any audio system of low quality sound can tolerate more errors than
binary data with no parity or ECC's
Back to top
 
 

Jerry Twomey
www.effectiveelectrons.com
Read My Electronic Design Column Here
Contract IC-PCB-System Design - Analog, Mixed Signal, RF & Medical
View Profile WWW   IP Logged
philcorb
Junior Member
**
Offline



Posts: 17

Re: BER
Reply #2 - Feb 10th, 2012, 12:47am
 
In some transmission standards BER can relate to the possibility of a reliable link.  For example BlueTooth LE has a BER=0.1%.  This represents a packet error rate of ~30%, about the maximum error to maintain a link.  In other words, for every 3 packets sent, 2 should be received.
Back to top
 
 
View Profile   IP Logged
Pages: 1
Send Topic Print
Copyright 2002-2021 Designer’s Guide Consulting, Inc. Designer’s Guide® is a registered trademark of Designer’s Guide Consulting, Inc. All rights reserved. Send comments or questions to editor@designers-guide.org. Consider submitting a paper or model.