@ARTICLE{shannon,
  author={Shannon, C.E.},
  journal={Proceedings of the IEEE},
  title={Communication In The Presence Of Noise},
  year={1998},
  volume={86},
  number={2},
  pages={447-457},
  keywords={Acoustic noise;Distortion;Telegraphy;Telephony;Communication systems;Bandwidth;Radio transmitters;Signal processing;Signal mapping;Teleprinting},
  doi={10.1109/JPROC.1998.659497}}

@BOOK{huffman,
    author={Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Clifford Stein},
    title={Introduction to Algorithms},
    volume={2},
    year={2001},
    pages={385-392},
    isbn={0-262-03293-7}
}

@article{modulation,
  title={Principles of digital modulation},
  author={Fitton, Mike},
  journal={URL http://www. berk. tc/combas/digital\_mod. pdf},
  year={2002}
}