ndn-consumer-pcon.hpp

Go to the documentation of this file.

/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2011-2018  Regents of the University of California.
 *
 * This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
 * contributors.
 *
 * ndnSIM is free software: you can redistribute it and/or modify it under the terms
 * of the GNU General Public License as published by the Free Software Foundation,
 * either version 3 of the License, or (at your option) any later version.
 *
 * ndnSIM 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
 * ndnSIM, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
 **/
 
#ifndef NDN_CONSUMER_PCON_H
#define NDN_CONSUMER_PCON_H
 
#include "ns3/ndnSIM/model/ndn-common.hpp"
 
#include "ndn-consumer-window.hpp"
 
namespace ns3 {
namespace ndn {
 
enum CcAlgorithm {
  AIMD,
  BIC,
  CUBIC
};
 
class ConsumerPcon : public ConsumerWindow {
public:
  static TypeId
  GetTypeId();
 
  ConsumerPcon();
 
  virtual void
  OnData(shared_ptr<const Data> data) override;
 
  virtual void
  OnTimeout(uint32_t sequenceNum) override;
 
private:
  void
  WindowIncrease();
 
  void
  WindowDecrease();
 
  void
  CubicIncrease();
 
  void
  CubicDecrease();
 
  void
  BicIncrease();
 
  void
  BicDecrease();
 
private:
  CcAlgorithm m_ccAlgorithm;
  double m_beta;
  double m_addRttSuppress;
  bool m_reactToCongestionMarks;
  bool m_useCwa;
 
  double m_ssthresh;
  uint32_t m_highData;
  double m_recPoint;
 
  // TCP CUBIC Parameters //
  static constexpr double CUBIC_C = 0.4;
  bool m_useCubicFastConv;
  double m_cubicBeta;
 
  double m_cubicWmax;
  double m_cubicLastWmax;
  time::steady_clock::TimePoint m_cubicLastDecrease;
 
  // TCP BIC Parameters //
  static constexpr uint32_t BIC_LOW_WINDOW = 14;
 
  static constexpr uint32_t BIC_MAX_INCREMENT = 16;
 
  // BIC variables:
  double m_bicMinWin; 
  double m_bicMaxWin; 
  double m_bicTargetWin;
  double m_bicSsCwnd;
  double m_bicSsTarget;
  bool m_isBicSs; 
};
 
} // namespace ndn
} // namespace ns3
 
#endif // NDN_CONSUMER_PCON_H