On 11/17/2010 12:26 PM, William Cox wrote:
I guess it'd be nice if there was a way to compare spectral efficiency
vs. processing power.
In terms of complex modulation schemes, which would be least
intensive? QAM, QPSK, GMSK?
Consult a modern signal processing book.
I ask because I'm trying to use an Atom-based system for running
GNURadio and I'd like to minimize the overhead as much as possible.
I've been using GMSK so far, but I got to wondering if I could save
any appreciable amount by switching to an "easier" modulation scheme.
For low-bit-rate stuff, OOK works fairly well, but it isn't particularly
spectrally efficient, and it's a bugger to correctly demodulate in
low-SNR situations AFAIK.
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