case WIFI_MOD_CLASS_VHT:

    case WIFI_MOD_CLASS_VHT:

      switch (txVector.GetChannelWidth ())

      switch (txVector.GetChannelWidth ())

        {

        {

          return WifiPhy::GetOfdmRate1_5MbpsBW5MHz ();

          return WifiPhy::GetOfdmRate1_5MbpsBW5MHz ();

          return WifiPhy::GetOfdmRate3MbpsBW10MHz ();

          return WifiPhy::GetOfdmRate3MbpsBW10MHz ();

        default:

        default:

          //(Section 18.3.2 "PLCP frame format"; IEEE Std 802.11-2012)

          //(Section 18.3.2 "PLCP frame format"; IEEE Std 802.11-2012)

          //actually this is only the first part of the PlcpHeader,

          //actually this is only the first part of the PlcpHeader,

      {

      {

        switch (txVector.GetChannelWidth ())

        switch (txVector.GetChannelWidth ())

          {

          {

          default:

          default:

            //(Section 18.3.3 "PLCP preamble (SYNC))" and Figure 18-4 "OFDM training structure"; IEEE Std 802.11-2012)

            //(Section 18.3.3 "PLCP preamble (SYNC))" and Figure 18-4 "OFDM training structure"; IEEE Std 802.11-2012)

            //also (Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            //also (Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            //header, see Section 18.3.2 and Figure 18-1) is sent using the

            //header, see Section 18.3.2 and Figure 18-1) is sent using the

            //payload mode.

            //payload mode.

            return MicroSeconds (4);

            return MicroSeconds (4);

            //(Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            //(Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            return MicroSeconds (8);

            return MicroSeconds (8);

            //(Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            //(Section 18.3.2.4 "Timing related parameters" Table 18-5 "Timing-related parameters"; IEEE Std 802.11-2012)

            return MicroSeconds (16);

            return MicroSeconds (16);

          }

          }

      {

      {

        switch (txVector.GetChannelWidth ())

        switch (txVector.GetChannelWidth ())

          {

          {

          default:

          default:

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            return MicroSeconds (16);

            return MicroSeconds (16);

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            return MicroSeconds (32);

            return MicroSeconds (32);

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //(Section 18.3.3 "PLCP preamble (SYNC))" Figure 18-4 "OFDM training structure"

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            //also Section 18.3.2.3 "Modulation-dependent parameters" Table 18-4 "Modulation-dependent parameters"; IEEE Std 802.11-2012)

            return MicroSeconds (64);

            return MicroSeconds (64);

        switch (txVector.GetChannelWidth ())

        switch (txVector.GetChannelWidth ())

          {

          {

          default:

          default:

            symbolDuration = MicroSeconds (4);

            symbolDuration = MicroSeconds (4);

            break;

            break;

            symbolDuration = MicroSeconds (8);

            symbolDuration = MicroSeconds (8);

            break;

            break;

            symbolDuration = MicroSeconds (16);

            symbolDuration = MicroSeconds (16);

            break;

            break;

          }

          }