Modulation scheme classification for 4G software radio wireless networks
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2002Citation:
Nolan, K.E., Doyle,L., Mackenzie,P. and O'Mahony,D `Modulation scheme classification for 4G software radio wireless networks? in Proceedings of the IASTED International Conference on Signal Processing, Pattern Recognition, and Applications (SPPRA 2002), Crete, Greece, June 25-28, 2002, pp 25-31Download Item:
Abstract:
This paper describes software radio and a software
radio technique for automatic digital modulation scheme
recognition. The modulation recognition technique is
designed for a real-time software radio using general-purpose
processors and is based on a modified pattern recognition
and phase classifier approach. The techniques presented in
this paper are designed to be robust and efficient with a
processing time overhead that still allows the software radio
to maintain its real-time operating objectives. Experimental
results for GMSK recognition over a fading, ISI channel with
AWGN and random phase noise are presented. One test
scenario, where an intercepted signal is either BPSK or
QPSK modulated, using an AWGN channel with random
phase noise shows that correct modulation scheme
classification is possible to a lower-bound channel SNR of
approximately 9dB.
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