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Code Issues Releases Wiki Activity

add transmit start for leo mock channels

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This commit is contained in:
Tim Schubert 2020-06-24 22:23:09 +02:00
parent aa4e5b5ef0
commit 20ad318cb9
8 changed files with 55 additions and 94 deletions
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31
model/isl-mock-channel.cc
View file

@ -52,37 +52,6 @@ IslMockChannel::~IslMockChannel()
{
}
bool IslMockChannel::Deliver (
Ptr<const Packet> p,
Ptr<MockNetDevice> src,
Ptr<MockNetDevice> dst,
Time txTime)
{
NS_LOG_FUNCTION (this << p << src->GetAddress () << dst->GetAddress () << txTime);
Time delay = GetDelay (src, dst, txTime);
/* Check if there is LOS between the source and destination */
if (GetPropagationLoss ()->CalcRxPower(1, src->GetMobilityModel(), dst->GetMobilityModel()) > 0)
{
Simulator::ScheduleWithContext (dst->GetNode ()->GetId (),
delay,
&MockNetDevice::Receive,
dst,
p->Copy (),
src);
// Call the tx anim callback on the net device
m_txrxMock (p, src, dst, txTime, delay);
return true;
}
else
{
NS_LOG_LOGIC (dst << " unreachable from " << src);
return false;
}
}
bool
IslMockChannel::TransmitStart (
Ptr<const Packet> p,

3
model/isl-mock-channel.h
View file

@ -59,8 +59,9 @@ public:
bool TransmitStart (Ptr<const Packet> p, uint32_t devId, Address dst, Time txTime);
private:
std::vector<Ptr<MockNetDevice> > m_link;
bool Deliver (Ptr<const Packet> p, Ptr<MockNetDevice> src, Ptr<MockNetDevice> dst, Time txTime);
}; // class MockChannel
} // namespace ns3

66
model/leo-mock-channel.cc
View file

@ -21,13 +21,6 @@ LeoMockChannel::GetTypeId (void)
.SetParent<Channel> ()
.SetGroupName ("Leo")
.AddConstructor<LeoMockChannel> ()
.AddAttribute ("ChannelType",
"The type of the channel",
EnumValue (),
MakeEnumAccessor (&LeoMockChannel::m_channelType),
MakeEnumChecker (
ChannelType::GW, "ns3::LeoMockChannel::ChannelType::GW",
ChannelType::UT, "ns3::LeoMockChannel::ChannelType::UT"))
;
return tid;
}
@ -51,63 +44,24 @@ LeoMockChannel::TransmitStart (Ptr<const Packet> p,
{
// Find devices joined to channel
Ptr<LeoMockNetDevice> srcDev = DynamicCast<LeoMockNetDevice> (GetDevice (devId));
if (srcDev == nullptr)
{
NS_LOG_ERROR ("Dropping packet: invalid source device");
return false;
}
Ptr<LeoMockNetDevice> dstDev = DynamicCast<LeoMockNetDevice> (GetDevice (dst));
bool isBroadcast = (srcDev->GetBroadcast () == dst);
if (dstDev == nullptr && !isBroadcast)
if (!isBroadcast && dstDev == nullptr)
{
NS_LOG_ERROR ("Dropping packet: invalid destination device");
NS_LOG_LOGIC (this << "Dropping packet: direct communication between ground stations and satellites not allowed using this channel");
return false;
}
LeoMockNetDevice::DeviceType srcType = srcDev->GetDeviceType ();
for (uint32_t i = 0; i < GetNDevices (); i++)
{
if (srcDev->GetDeviceType () != dstDev->GetDeviceType ())
{
Deliver (p, srcDev, dstDev, txTime);
}
}
switch (m_channelType)
{
case LeoMockChannel::ChannelType::GW:
if (srcType == LeoMockNetDevice::GW)
{
// Get device from SAT_GW set
return true;
}
else if (srcType == LeoMockNetDevice::SAT_GW)
{
// Get device from GW set
return true;
}
break;
case LeoMockChannel::ChannelType::UT:
if (srcType == LeoMockNetDevice::UT)
{
// Get device from SAT_UT set
return true;
}
else if (srcType == LeoMockNetDevice::SAT_UT)
{
// Get device from UT set
return true;
}
break;
// Other kinds of transmissions are not allowed
default:
NS_LOG_ERROR ("Dropping packet: invalid channel type");
return false;
}
// Apply propagation loss and schedule transmission
// Get propagation delay
Time delay = GetDelay (srcDev, dstDev, txTime);
// Make compiler happy
return false;
}
}; // namespace ns3

7
model/leo-mock-channel.h
View file

@ -44,6 +44,8 @@ namespace ns3 {
* \brief Mocked satellite-gateway, satellite-terminal channel types
*
*/
// TODO make separate clases for ut and gw links
// TODO make separate clases for ut and gw devices
class LeoMockChannel : public MockChannel
{
public:
@ -60,7 +62,6 @@ public:
virtual bool TransmitStart (Ptr<const Packet> p, uint32_t devId, Address dst, Time txTime);
protected:
enum ChannelType
{
GW,
@ -78,6 +79,10 @@ private:
bool IsChannel (Ptr<LeoMockNetDevice> dstType, Ptr<LeoMockNetDevice> srcType, bool isBroadcast);
typedef std::map<Address, Ptr<LeoMockNetDevice> > DeviceIndex;
DeviceIndex m_gndDevs;
DeviceIndex m_satDevs;
}; // class MockChannel
} // namespace ns3

6
model/leo-mock-net-device.cc
View file

@ -23,10 +23,8 @@ LeoMockNetDevice::GetTypeId (void)
EnumValue (),
MakeEnumAccessor (&LeoMockNetDevice::m_deviceType),
MakeEnumChecker (
DeviceType::GW, "ns3::LeoMockNetDevice::NetDeviceType::GW_FORWARD",
DeviceType::UT, "ns3::LeoMockNetDevice::NetDeviceType::GW_RETURN",
DeviceType::SAT_GW, "ns3::LeoMockNetDevice::NetDeviceType::UT_FORWARD",
DeviceType::SAT_UT, "ns3::LeoMockNetDevice::NetDeviceType::UT_RETURN"))
DeviceType::GND, "ns3::LeoMockNetDevice::NetDeviceType::GND",
DeviceType::SAT, "ns3::LeoMockNetDevice::NetDeviceType::SAT"))
;
return tid;
};

6
model/leo-mock-net-device.h
View file

@ -15,10 +15,8 @@ class LeoMockNetDevice : public MockNetDevice
public:
enum DeviceType
{
GW,
UT,
SAT_UT,
SAT_GW
GND,
SAT
};
static TypeId GetTypeId (void);

33
model/mock-channel.cc
View file

@ -152,4 +152,37 @@ MockChannel::GetPropagationLoss () const
return m_propagationLoss;
}
bool
MockChannel::Deliver (
Ptr<const Packet> p,
Ptr<MockNetDevice> src,
Ptr<MockNetDevice> dst,
Time txTime)
{
NS_LOG_FUNCTION (this << p << src->GetAddress () << dst->GetAddress () << txTime);
Time delay = GetDelay (src, dst, txTime);
/* Check if there is LOS between the source and destination */
if (GetPropagationLoss ()->CalcRxPower(1, src->GetMobilityModel(), dst->GetMobilityModel()) > 0)
{
Simulator::ScheduleWithContext (dst->GetNode ()->GetId (),
delay,
&MockNetDevice::Receive,
dst,
p->Copy (),
src);
// Call the tx anim callback on the net device
m_txrxMock (p, src, dst, txTime, delay);
return true;
}
else
{
NS_LOG_LOGIC (dst << " unreachable from " << src);
return false;
}
}
} // namespace ns3

3
model/mock-channel.h
View file

@ -89,6 +89,9 @@ protected:
Ptr<PropagationDelayModel> GetPropagationDelay () const;
Ptr<PropagationLossModel> GetPropagationLoss () const;
Ptr<MockNetDevice> GetDevice (Address &addr) const;
bool Deliver ( Ptr<const Packet> p, Ptr<MockNetDevice> src, Ptr<MockNetDevice> dst, Time txTime);
private:
std::vector<Ptr<MockNetDevice> > m_link;