28 namespace ns3 {

    28 namespace ns3 {

    29 

    29 

    30 class MobilityModel;

    30 class MobilityModel;

    31 

    31 

    32 

    32 

    33 class FriisSpectrumPropagationLossModel : public SpectrumPropagationLossModel

    37 class FriisSpectrumPropagationLossModel : public SpectrumPropagationLossModel

    34 {

    38 {

    35 

    39 

    36 public:

    40 public:

    37   FriisSpectrumPropagationLossModel ();

    41   FriisSpectrumPropagationLossModel ();