/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2006,2007 INRIA
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Mathieu Lacage, <mathieu.lacage@sophia.inria.fr>
*/
#ifndef WIFI_CHANNEL_H
#define WIFI_CHANNEL_H
#include <vector>
#include <stdint.h>
#include "ns3/packet.h"
#include "ns3/channel.h"
#include "wifi-mode.h"
#include "wifi-preamble.h"
#include "wifi-phy.h"
namespace ns3 {
class NetDevice;
class PropagationLossModel;
class PropagationDelayModel;
/**
* \brief A 802.11 Channel
*
* This channel subclass can be used to connect together a set of
* ns3::WifiNetDevice network interfaces. A WifiChannel contains
* a ns3::PropagationLossModel and a ns3::PropagationDelayModel which can
* be overriden by the WifiChannel::SetPropagationLossModel
* and the WifiChannel::SetPropagationDelayModel methods. By default,
* no propagation models are set.
*/
class WifiChannel : public Channel
{
public:
static TypeId GetTypeId (void);
WifiChannel ();
virtual ~WifiChannel ();
/**
* \returns the number of network interfaces connected to
* this channel.
*
* Overriden from the NetDevice base class.
*/
virtual uint32_t GetNDevices (void) const;
/**
* \param i index of the requested network interface.
* \returns the requested network interfaces connected to
* this channel.
*
* Overriden from the NetDevice base class.
* Indexes start at 0 and end at n-1.
*/
virtual Ptr<NetDevice> GetDevice (uint32_t i) const;
/**
* \param loss the new propagation loss model.
*/
void SetPropagationLossModel (Ptr<PropagationLossModel> loss);
/**
* \param delay the new propagation delay model.
*/
void SetPropagationDelayModel (Ptr<PropagationDelayModel> delay);
/**
* \param device the device to add to the list of connected
* devices.
* \param phy the physical layer which will receive packets
* on behalf of the device.
*
* This method should not be invoked by normal users. It is
* currently invoked only from WifiPhy::SetChannel.
*/
void Add (Ptr<NetDevice> device, Ptr<WifiPhy> phy);
/**
* \param sender the device from which the packet is originating.
* \param packet the packet to send
* \param txPowerDbm the tx power associated to the packet
* \param wifiMode the tx mode associated to the packet
* \param preamble the preamble associated to the packet
*
* This method should not be invoked by normal users. It is
* currently invoked only from WifiPhy::Send.
*/
void Send (Ptr<WifiPhy> sender, Ptr<const Packet> packet, double txPowerDbm,
WifiMode wifiMode, WifiPreamble preamble) const;
private:
typedef std::vector<std::pair<Ptr<NetDevice>, Ptr<WifiPhy> > > DeviceList;
void Receive (uint32_t i, Ptr<Packet> packet, double rxPowerDbm,
WifiMode txMode, WifiPreamble preamble) const;
DeviceList m_deviceList;
Ptr<PropagationLossModel> m_loss;
Ptr<PropagationDelayModel> m_delay;
};
} // namespace ns3
#endif /* WIFI_CHANNEL_H */