rr-multi-user-scheduler.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2020 Universita' degli Studi di Napoli Federico II
 *
 * 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: Stefano Avallone <stavallo@unina.it>
 */

#ifndef RR_MULTI_USER_SCHEDULER_H
#define RR_MULTI_USER_SCHEDULER_H

#include "multi-user-scheduler.h"
#include <list>

namespace ns3 {

class RrMultiUserScheduler : public MultiUserScheduler
{
public:
  static TypeId GetTypeId (void);
  RrMultiUserScheduler ();
  virtual ~RrMultiUserScheduler ();

protected:
  void DoDispose (void) override;
  void DoInitialize (void) override;

private:
  TxFormat SelectTxFormat (void) override;
  DlMuInfo ComputeDlMuInfo (void) override;
  UlMuInfo ComputeUlMuInfo (void) override;

  virtual TxFormat TrySendingBsrpTf (void);

  virtual TxFormat TrySendingBasicTf (void);

  virtual TxFormat TrySendingDlMuPpdu (void);

  void AssignRuIndices (WifiTxVector& txVector);

  void NotifyStationAssociated (uint16_t aid, Mac48Address address);
  void NotifyStationDeassociated (uint16_t aid, Mac48Address address);

  struct MasterInfo
  {
    uint16_t aid;                 
    Mac48Address address;         
    double credits;               
  };

  typedef std::pair<std::list<MasterInfo>::iterator, Ptr<const WifiMacQueueItem>> CandidateInfo;

  uint8_t m_nStations;                                  
  bool m_enableTxopSharing;                             
  bool m_forceDlOfdma;                                  
  bool m_enableUlOfdma;                                 
  bool m_enableBsrp;                                    
  bool m_useCentral26TonesRus;                          
  uint32_t m_ulPsduSize;                                
  std::map<AcIndex, std::list<MasterInfo>> m_staList;   
  std::list<CandidateInfo> m_candidates;                
  Time m_maxCredits;                                    
  Ptr<WifiMacQueueItem> m_trigger;                      
  Time m_tbPpduDuration;                                
  WifiTxParameters m_txParams;                          
  TriggerFrameType m_ulTriggerType;                     
};

} //namespace ns3

#endif /* RR_MULTI_USER_SCHEDULER_H */