Methods and systems consistent with the present invention provide a method
for dynamically controlling power consumption in a digital demodulator
circuit by varying clock rates and bit widths of demodulator components
including an analog to digital converter, decimation filter, OFDM
operating engine, FEC decoder, and MPE-FEC processor, according to
parameters and conditions of the received signal including modulation
mode, signal to noise ratio, effective bit transmission rate, bit error
rate, packet error rate, adjacent channel interference, and co-channel
interference.