README

M-QAM Simulator -- ETSIT-UPM LTDS 2010-2011

M-QAM Simulator on Matlab. Simulates digital data modulated with M-QAM 
passing through an AWGN channel.

Authors:
  Luis Antonio Úbeda Medina (lubeme23@gmail.com)
  Héctor Veiga Ortiz (hveiga@hawk.iit.edu)

Copyright 2010 Héctor Veiga Ortiz and Luis Antonio Úbeda Medina.

M-QAM Simulator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
 
M-QAM Simulator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with M-QAM Simulator.  If not, see <http://www.gnu.org/licenses/>.

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QUICK GUIDE:

+ M-QAM_Simulation.m
  
  It simulates the system and estimates a BER for an SNR given. Type of 
  M-QAM used is selected as well.
  Input data:

	- longitud: amount of bits to be tested
	- M: deepness of modulation. 1 = 4-QAM, 2 = 16-QAM, 3 = 64-QAM, ..
	- SNR: Signal Noise Ratio for the AWGN channel in dB.

	Example: M-QAM_Simulation(100,2,10)

+ M-QAM_Election.m

  It analyses several QAM modulation schemas to choose the one which 
  gives us more binary speed. SNR of channel and a max BER are given.
  Input data:

	- SNR - Signal Noise Ratio for the AWGN Channel in dB. 
	- BitErr - Maximun BER allowed.
	
	Example: M-QAM_Election(5,0.01)

+ M-QAM_Comparison.m

  It analyses several QAM modulation schemas returning the Bit Error Rate
  from each one. SNR is given.
  Input data:

	- SNR - Signal Noise Ratio for the AWGN Channel in dB.

	Example: M-QAM_Comparison(5)