modulation.h

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/* Ported from CMU/Monarch's code, nov'98 -Padma.*/

#ifndef __modulation_h__
#define __modulation_h__

/* ======================================================================
   Modulation Schemes

    Using the receive power and information about the modulation
    scheme, amount of forward error correction, etc., this class
    computes whether or not a packet was received correctly or with
    few enough errors that they can be tolerated.

   ====================================================================== */

class Modulation {

public:
    virtual ~Modulation () {}
    virtual int BitError(double) = 0;   // success reception?

protected:
    int Rs;                 // symbol rate per second

private:
    // Probability of 1 bit error
    virtual double ProbBitError(double) = 0;

    // Probability of n bit errors
    virtual double ProbBitError(double, int) = 0;
};


class BPSK : public Modulation {

public:
    BPSK(void);
    BPSK(int);

    virtual ~BPSK () {}

    virtual int BitError(double Pr);

private:
    virtual double ProbBitError(double Pr);
    virtual double ProbBitError(double Pr, int n);
};

#endif /* __modulation_h__ */

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