1 /* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

     2 /*

     3  * Copyright (c) 2006,2007 INRIA

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License version 2 as 

     7  * published by the Free Software Foundation;

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    17  *

    18  * Author: Mathieu Lacage, <mathieu.lacage@sophia.inria.fr>

    19  */

    20 #include "ns3/packet.h"

    21 #include "ns3/simulator.h"

    22 #include "ns3/mobility-model.h"

    23 #include "ns3/net-device.h"

    24 #include "ns3/node.h"

    25 #include "wifi-channel.h"

    26 #include "propagation-loss-model.h"

    27 #include "propagation-delay-model.h"

    28 

    29 

    30 namespace ns3 {

    31 

    32 WifiChannel::WifiChannel ()

    33 {}

    34 WifiChannel::~WifiChannel ()

    35 {}

    36 

    37 void 

    38 WifiChannel::Add (Ptr<NetDevice> device,  ReceiveCallback callback)

    39 {

    40   m_deviceList.push_back (std::make_pair (device, callback));

    41 }

    42 void 

    43 WifiChannel::Send (Ptr<NetDevice> sender, const Packet &packet, double txPowerDbm,

    44                    uint64_t wifiMode) const

    45 {

    46   Ptr<MobilityModel> senderMobility = sender->GetNode ()->QueryInterface<MobilityModel> (MobilityModel::iid);

    47   uint32_t j = 0;

    48   for (DeviceList::const_iterator i = m_deviceList.begin (); i != m_deviceList.end (); i++)

    49     {

    50       if (sender != i->first)

    51         {

    52           Ptr<MobilityModel> receiverMobility = i->first->GetNode ()->QueryInterface<MobilityModel> (MobilityModel::iid);

    53           double distance = senderMobility->GetDistanceFrom (receiverMobility);

    54           Time delay = m_delay->GetDelay (distance);

    55           double rxPowerDbm = m_loss->GetRxPower (txPowerDbm, distance);

    56           Simulator::Schedule (delay, &WifiChannel::Receive, this, 

    57                                j, packet, rxPowerDbm, wifiMode);

    58         }

    59       j++;

    60     }

    61 }

    62 

    63 void

    64 WifiChannel::Receive (uint32_t i,

    65                       const Packet &packet, double rxPowerDbm,

    66                       uint64_t wifiMode) const

    67 {

    68   m_deviceList[i].second (packet, rxPowerDbm, wifiMode);

    69 }

    70 

    71 uint32_t 

    72 WifiChannel::GetNDevices (void) const

    73 {

    74   return m_deviceList.size ();

    75 }

    76 Ptr<NetDevice> 

    77 WifiChannel::GetDevice (uint32_t i) const

    78 {

    79   return m_deviceList[i].first;

    80 }

    81 

    82 } // namespace ns3