tcp-illinois.h

Go to the documentation of this file.

/*
 * Copyright (c) 2016 ResiliNets, ITTC, University of Kansas
 *
 * 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: Keerthi Ganta <keerthiganta@ku.edu>
 *         Truc Anh N. Nguyen <annguyen@ittc.ku.edu>
 *
 * James P.G. Sterbenz <jpgs@ittc.ku.edu>, director
 * ResiliNets Research Group  https://resilinets.org/
 * Information and Telecommunication Technology Center (ITTC)
 * and Department of Electrical Engineering and Computer Science
 * The University of Kansas Lawrence, KS USA.
 */
 
#ifndef TCPILLINOIS_H
#define TCPILLINOIS_H
 
#include "tcp-congestion-ops.h"
 
namespace ns3
{
 
class TcpSocketState;
 
class TcpIllinois : public TcpNewReno
{
  public:
    static TypeId GetTypeId();
 
    TcpIllinois();
 
    TcpIllinois(const TcpIllinois& sock);
    ~TcpIllinois() override;
 
    std::string GetName() const override;
 
    uint32_t GetSsThresh(Ptr<const TcpSocketState> tcb, uint32_t bytesInFlight) override;
 
    Ptr<TcpCongestionOps> Fork() override;
 
    void CongestionStateSet(Ptr<TcpSocketState> tcb,
                            const TcpSocketState::TcpCongState_t newState) override;
 
    void IncreaseWindow(Ptr<TcpSocketState> tcb, uint32_t segmentsAcked) override;
 
    void PktsAcked(Ptr<TcpSocketState> tcb, uint32_t segmentsAcked, const Time& rtt) override;
 
  protected:
  private:
    void RecalcParam(uint32_t cWnd);
 
    void CalculateAlpha(double da, double dm);
 
    void CalculateBeta(double da, double dm);
 
    Time CalculateAvgDelay() const;
 
    Time CalculateMaxDelay() const;
 
    void Reset(const SequenceNumber32& nextTxSequence);
 
  private:
    Time m_sumRtt;             
    uint32_t m_cntRtt;         
    Time m_baseRtt;            
    Time m_maxRtt;             
    SequenceNumber32 m_endSeq; 
    bool m_rttAbove;           
    uint8_t m_rttLow;          
    double m_alphaMin;         
    double m_alphaMax;         
    double m_alphaBase;        
    double m_alpha;            
    double m_betaMin;          
    double m_betaMax;          
    double m_betaBase;         
    double m_beta;             
    uint32_t m_winThresh;      
    uint32_t m_theta;          
    uint32_t m_ackCnt;         
};
 
} // namespace ns3
 
#endif // TCPILLINOIS_H