wifi-mode.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2005,2006,2007 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
 *
 * Authors: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
 *          Sébastien Deronne <sebastien.deronne@gmail.com>
 */

#ifndef WIFI_MODE_H
#define WIFI_MODE_H

#include <vector>
#include "ns3/attribute-helper.h"

namespace ns3 {

#define SU_STA_ID 65535

class WifiTxVector;

enum WifiModulationClass
{
  WIFI_MOD_CLASS_UNKNOWN = 0,
  WIFI_MOD_CLASS_IR,
  WIFI_MOD_CLASS_FHSS,
  WIFI_MOD_CLASS_DSSS,
  WIFI_MOD_CLASS_HR_DSSS,
  WIFI_MOD_CLASS_ERP_PBCC,
  WIFI_MOD_CLASS_DSSS_OFDM,
  WIFI_MOD_CLASS_ERP_OFDM,
  WIFI_MOD_CLASS_OFDM,
  WIFI_MOD_CLASS_HT,
  WIFI_MOD_CLASS_VHT,
  WIFI_MOD_CLASS_HE
};

enum WifiCodeRate
{
  WIFI_CODE_RATE_UNDEFINED,
  WIFI_CODE_RATE_3_4,
  WIFI_CODE_RATE_2_3,
  WIFI_CODE_RATE_1_2,
  WIFI_CODE_RATE_5_6
};

class WifiMode
{
public:
  bool IsAllowed (uint16_t channelWidth, uint8_t nss) const;
  uint64_t GetPhyRate (uint16_t channelWidth, uint16_t guardInterval, uint8_t nss) const;
  uint64_t GetPhyRate (WifiTxVector txVector) const;
  uint64_t GetDataRate (uint16_t channelWidth, uint16_t guardInterval, uint8_t nss) const;
  uint64_t GetDataRate (WifiTxVector txVector, uint16_t staId = SU_STA_ID) const;
  uint64_t GetDataRate (uint16_t channelWidth) const;

  WifiCodeRate GetCodeRate (void) const;
  uint16_t GetConstellationSize (void) const;
  uint8_t GetMcsValue (void) const;
  std::string GetUniqueName (void) const;
  bool IsMandatory (void) const;
  uint32_t GetUid (void) const;
  WifiModulationClass GetModulationClass () const;
  uint64_t GetNonHtReferenceRate (void) const;
  bool IsHigherCodeRate (WifiMode mode) const;
  bool IsHigherDataRate (WifiMode mode) const;

  WifiMode ();
  WifiMode (std::string name);


private:
  friend class WifiModeFactory;
  WifiMode (uint32_t uid);
  uint32_t m_uid; 
};

bool operator == (const WifiMode &a, const WifiMode &b);
bool operator < (const WifiMode &a, const WifiMode &b);
std::ostream & operator << (std::ostream & os, const WifiMode &mode);
std::istream & operator >> (std::istream &is, WifiMode &mode);

ATTRIBUTE_HELPER_HEADER (WifiMode);

typedef std::vector<WifiMode> WifiModeList;
typedef WifiModeList::const_iterator WifiModeListIterator;

class WifiModeFactory
{
public:
  static WifiMode CreateWifiMode (std::string uniqueName,
                                  WifiModulationClass modClass,
                                  bool isMandatory,
                                  WifiCodeRate codingRate,
                                  uint16_t constellationSize);

  static WifiMode CreateWifiMcs (std::string uniqueName,
                                 uint8_t mcsValue,
                                 WifiModulationClass modClass);


private:
  friend class WifiMode;
  friend std::istream & operator >> (std::istream &is, WifiMode &mode);

  static WifiModeFactory* GetFactory ();
  WifiModeFactory ();

  struct WifiModeItem
  {
    std::string uniqueUid; 
    WifiModulationClass modClass; 
    uint16_t constellationSize; 
    WifiCodeRate codingRate; 
    bool isMandatory; 
    uint8_t mcsValue; 
  };

  WifiMode Search (std::string name) const;
  uint32_t AllocateUid (std::string uniqueUid);
  WifiModeItem* Get (uint32_t uid);

  typedef std::vector<WifiModeItem> WifiModeItemList;
  WifiModeItemList m_itemList; 
};

} //namespace ns3

#endif /* WIFI_MODE_H */