satellite-fwd-link-scheduler.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013 Magister Solutions Ltd
 *
 * 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: Sami Rantanen <sami.rantanen@magister.fi>
 */
 
#ifndef SAT_FWD_LINK_SCHEDULER_H
#define SAT_FWD_LINK_SCHEDULER_H
 
#include "satellite-bbframe-conf.h"
#include "satellite-bbframe-container.h"
#include "satellite-bbframe.h"
#include "satellite-cno-estimator.h"
#include "satellite-mac.h"
#include "satellite-net-device.h"
#include "satellite-phy.h"
#include "satellite-scheduling-object.h"
#include "satellite-signal-parameters.h"
 
#include <ns3/address.h>
#include <ns3/callback.h>
#include <ns3/mac48-address.h>
#include <ns3/node.h>
#include <ns3/nstime.h>
#include <ns3/packet.h>
#include <ns3/ptr.h>
#include <ns3/random-variable-stream.h>
#include <ns3/timer.h>
#include <ns3/traced-callback.h>
 
#include <cstring>
#include <math.h>
 
namespace ns3
{
 
class SatFwdLinkScheduler : public Object
{
  public:
    typedef enum
    {
        NO_SORT,              
        BUFFERING_DELAY_SORT, 
        BUFFERING_LOAD_SORT,  
        RANDOM_SORT,          
        PRIORITY_SORT         
    } ScheduleSortingCriteria_t;
 
    static bool CompareSoFlowId(Ptr<SatSchedulingObject> obj1, Ptr<SatSchedulingObject> obj2);
 
    static bool CompareSoPriorityLoad(Ptr<SatSchedulingObject> obj1, Ptr<SatSchedulingObject> obj2);
 
    static bool CompareSoPriorityHol(Ptr<SatSchedulingObject> obj1, Ptr<SatSchedulingObject> obj2);
 
    static TypeId GetTypeId(void);
 
    virtual TypeId GetInstanceTypeId(void) const;
 
    SatFwdLinkScheduler();
 
    SatFwdLinkScheduler(Ptr<SatBbFrameConf> conf,
                        Mac48Address address,
                        double carrierBandwidthInHz);
 
    ~SatFwdLinkScheduler();
 
    virtual std::pair<Ptr<SatBbFrame>, const Time> GetNextFrame();
 
    typedef Callback<void, std::vector<Ptr<SatSchedulingObject>>&> SchedContextCallback;
 
    typedef Callback<Ptr<Packet>, uint32_t, Mac48Address, uint8_t, uint32_t&, uint32_t&>
        TxOpportunityCallback;
 
    typedef Callback<bool, Ptr<SatControlMessage>, const Address&> SendControlMsgCallback;
 
    void SetSchedContextCallback(SatFwdLinkScheduler::SchedContextCallback cb);
 
    void SetTxOpportunityCallback(SatFwdLinkScheduler::TxOpportunityCallback cb);
 
    void SetSendControlMsgCallback(SatFwdLinkScheduler::SendControlMsgCallback cb);
 
    bool SendControlMsg(Ptr<SatControlMessage> message, const Address& dest) const;
 
    void CnoInfoUpdated(Mac48Address utAddress, double cnoEstimate);
 
    Time GetDefaultFrameDuration() const;
 
    void SetDummyFrameSendingEnabled(bool dummyFrameSendingEnabled);
 
  protected:
    typedef std::map<Mac48Address, Ptr<SatCnoEstimator>> CnoEstimatorMap_t;
 
    SatFwdLinkScheduler& operator=(const SatFwdLinkScheduler&);
    SatFwdLinkScheduler(const SatFwdLinkScheduler&);
 
    void DoDispose(void);
 
    void ScheduleBbFrames();
 
    bool CnoMatchWithFrame(double cno, Ptr<SatBbFrame> frame) const;
 
    double GetSchedulingObjectCno(Ptr<SatSchedulingObject> ob);
 
    virtual void SendAndClearSymbolsSentStat();
 
    void PeriodicTimerExpired();
 
    void GetSchedulingObjects(std::vector<Ptr<SatSchedulingObject>>& output);
 
    void SortSchedulingObjects(std::vector<Ptr<SatSchedulingObject>>& so);
 
    Ptr<SatCnoEstimator> CreateCnoEstimator();
 
    Mac48Address m_macAddress;
 
    bool m_dummyFrameSendingEnabled;
 
    Ptr<UniformRandomVariable> m_random;
 
    Time m_periodicInterval;
 
    Ptr<SatBbFrameConf> m_bbFrameConf;
 
    ScheduleSortingCriteria_t m_additionalSortCriteria;
 
    SatFwdLinkScheduler::TxOpportunityCallback m_txOpportunityCallback;
 
    SatFwdLinkScheduler::SchedContextCallback m_schedContextCallback;
 
    SatFwdLinkScheduler::SendControlMsgCallback m_sendControlMsgCallback;
 
    CnoEstimatorMap_t m_cnoEstimatorContainer;
 
    SatCnoEstimator::EstimationMode_t m_cnoEstimatorMode;
 
    Time m_cnoEstimationWindow;
 
    double m_carrierBandwidthInHz;
 
    TracedCallback<uint8_t, double> m_schedulingSymbolRateTrace;
};
 
} // namespace ns3
 
#endif /* SAT_FWD_LINK_SCHEDULER_H */