int stat_modulation,stat_outsignal_i,stat_outsignal_q;
int mode,modulation,datatype;

struct utils_param params[] = {
    /* 0 bpsk
     * 1 qpsk
     * 2 qam4
     * 3 psk8
     * 4 qam16
     */
    {"modulation",STAT_TYPE_INT,1,&modulation},
    /** datatype is for output. Input is assumed to be a bitstream */
    {"datatype",STAT_TYPE_INT,1,&datatype},
                            {NULL, 0, 0, 0}};


struct utils_stat stats[] = {    
                             {"modulation",
                            STAT_TYPE_INT,          
                            1,                      
                            &stat_modulation,
                            (void*)&modulation,
                            READ},

                             {"out_signal_i",
                            STAT_TYPE_FLOAT,
                            100,
                            &stat_outsignal_i,
                            (void*)output_data_i,
                            WRITE},

                             {"out_signal_q",
                            STAT_TYPE_FLOAT,
                            100,
                            &stat_outsignal_q,
                            (void*)output_data_q,
                            WRITE},

                            {NULL, 0, 0, 0, 0, 0}};