Breaking News
Design How-To

Modulation roundup: error rates, noise, and capacity

Symbol error rate vs Eb/No
7/6/2008 04:00 PM EDT
6 comments
NO RATINGS
2 saves
< Previous Page 2 / 3 Next >
More Related Links
View Comments: Newest First | Oldest First | Threaded View
banibani
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
banibani   4/25/2012 4:19:50 PM
NO RATINGS
plz help me by giving me the formula of 16-APSK bit error rate or symbol error rate. i need only the equation of APSK bit error rate or symbol error rate.

old account Frank Eory
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
old account Frank Eory   9/16/2011 10:13:45 PM
NO RATINGS
The absolute most robust (error-free) settings would be QPSK, rate 1/2 FEC and 1/4 guard interval -- but that might not give you enough Mbps data capacity for what you're doing. Step one is figure out the data rate you need to transmit. Step two, dial in the most robust parameters that are just enough to meet that data rate. Step three, cross your fingers and hope there is enough signal to noise ratio for the receiver to catch all the data with an extremely low bit error rate.

dangermouse
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
dangermouse   9/16/2011 9:11:37 PM
NO RATINGS
So if I'm setting up a RF Central Microwave system for a reality TV show and my options are QPSK, 16QAM, or 64QAM. What should I set the transmitter to, to obtain the best quality in the microwave monitor/receiver? And does anyone know about the FEC: 1/2 2/3 3/4 5/6 7/8 Guard interval: 1/32 1/16 1/8 1/4 What are my optimum settings? PLEASE HELP

DerekJC
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
DerekJC   9/4/2009 10:18:22 AM
NO RATINGS
Good article. However, it would be useful to include some constellation plots.

tamdtvt
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
tamdtvt   5/12/2009 5:08:23 PM
NO RATINGS
please give me sourse code ??

wassouf_salahat
User Rank
Rookie
re: Modulation roundup: error rates, noise, and capacity
wassouf_salahat   12/22/2008 10:51:18 PM
NO RATINGS
thatsd great keep going:)

Top Comments of the Week
August Cartoon Caption Winner!
August Cartoon Caption Winner!
"All the King's horses and all the KIng's men gave up on Humpty, so they handed the problem off to Engineering."
5 comments
Like Us on Facebook

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
EE Times on Twitter
EE Times Twitter Feed
Radio
LATEST ARCHIVED BROADCAST
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.
Flash Poll