Matlab files in this directory:

GenerateData	Generates PAM or QAM data symbols spread in time and frequency depending
GeneratePreamble	Generates a preamble.
Generate_d_PAM	Generates PAM real symbols spread in time and frequency.
Generate_d_QAM	Generates QAM symbols spread in time and frequency.
InitializeChainParameters	Initializes modulation parameters to default values.
InsertScattteredPilot	Inserts scattered pilot in the symbol frame.
MergePreambleData	Merges preamble and data symbols.
Modulator	Modulates data symbols (possibly pre-equalized).
PreEqualizer	Pre-equalizes data symbols d.