I am currently evaluating IT++ for modelling the channel of a mobile wideband communication
system.
Is there a limitation in the size of an signal-vector
or the channel itself?
Or is it necessary to split the input of the channel in several small vectors?
This is a quite severe question, because the
output of my (existins) sender-model is several
100 MBytes in size!
I hope someone can help me with this problem.
Thanks in advance
Karsten
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Currently it++ assumes that the length of vectors are int (32 bits usually). So if you need much longer vectors than that you need to divide the problem into smaller parts. However, I cannot see that this should be a very severe limitation since computers usually have rather limited RAM size which means that you anyway need to divide your problem into smaller parts, e.g. saving parts of your database on file.
/Tony
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Thanks for your quick help!
I will definitely keep the amount of data for the baseband signal of the sender below 2 GBytes, in order to ensure the portability of my programs. Thus the amount of samples will be less than 256 (complex) MSamples per file.
I'll probably cut down the input sequence into frames in order to limit the memory requirements.
Karsten
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Hi!
I am currently evaluating IT++ for modelling the channel of a mobile wideband communication
system.
Is there a limitation in the size of an signal-vector
or the channel itself?
Or is it necessary to split the input of the channel in several small vectors?
This is a quite severe question, because the
output of my (existins) sender-model is several
100 MBytes in size!
I hope someone can help me with this problem.
Thanks in advance
Karsten
Dear Karsten,
Currently it++ assumes that the length of vectors are int (32 bits usually). So if you need much longer vectors than that you need to divide the problem into smaller parts. However, I cannot see that this should be a very severe limitation since computers usually have rather limited RAM size which means that you anyway need to divide your problem into smaller parts, e.g. saving parts of your database on file.
/Tony
Dear Tony,
Thanks for your quick help!
I will definitely keep the amount of data for the baseband signal of the sender below 2 GBytes, in order to ensure the portability of my programs. Thus the amount of samples will be less than 256 (complex) MSamples per file.
I'll probably cut down the input sequence into frames in order to limit the memory requirements.
Karsten