QoSAwareScheduler.h Source File¶

Simu5G: QoSAwareScheduler.h Source File
Simu5G
//
//                  Simu5G
//
// Authors: Mohamed Seliem (University College Cork)
//
// This file is part of a software released under the license included in file
// "license.pdf". Please read LICENSE and README files before using it.
// The above files and the present reference are part of the software itself,
// and cannot be removed from it.
//
 
 
#ifndef STACK_MAC_SCHEDULING_MODULES_QOSAWARESCHEDULER_H_
#define STACK_MAC_SCHEDULING_MODULES_QOSAWARESCHEDULER_H_
 
#include "simu5g/stack/mac/scheduler/LteScheduler.h"
#include "simu5g/stack/mac/DrbQosProfile.h"
#include <map>
#include <queue>
#include <vector>
 
namespace simu5g {
 
class LteMacBase;
class QoSAwareScheduler : public LteScheduler
{
  protected:
    typedef std::map<MacCid, double> PfRate;
    typedef std::pair<MacCid, double> ScoredCid;
 
    PfRate pfRate_;
    std::map<MacCid, unsigned int> grantedBytes_;
    double pfAlpha_;
    const double scoreEpsilon_ = 1e-6;
 
    const std::map<DrbKey, DrbQosProfile> *drbQosMap_ = nullptr;
 
    // QoS weight parameters  TODO initialize from NED parameters
    double gbrMultiplier_ = 2.0;
    double priorityBase_ = 10.0;       // weight contribution = priorityBase_ / priorityLevel (scale-free: only priority ratios matter)
    double delayUrgentMs_ = 10.0;      // delay budget thresholds (ms)
    double delayTightMs_ = 50.0;
    double delayLooseMs_ = 100.0;
    double delayUrgentMultiplier_ = 5.0;  // multipliers for each tier
    double delayTightMultiplier_ = 3.0;
    double delayLooseMultiplier_ = 1.5;
 
    // scratch for the aggregated profile getQosForUlGroup() returns a pointer to
    DrbQosProfile groupQos_;
 
    // Helpers
    virtual double computeQosWeight(const DrbQosProfile& e);
    virtual const DrbQosProfile *getDrbQosForCid(MacCid cid);
    virtual const DrbQosProfile *getQosForUlGroup(MacNodeId ueId, Lcg lcg);
 
  public:
    static std::vector<const DrbQosProfile *> collectUlGroupMembers(
            const std::map<DrbKey, DrbQosProfile>& drbQosMap, LteMacBase *mac, MacNodeId ueId, Lcg lcg);
    static DrbQosProfile aggregateQosProfiles(const std::vector<const DrbQosProfile *>& members);
 
    double& pfAlpha() { return pfAlpha_; }
 
    QoSAwareScheduler(Binder* binder, double pfAlpha);
    void setDrbQosMap(const std::map<DrbKey, DrbQosProfile> *m) { drbQosMap_ = m; }
    void prepareSchedule() override;
    void commitSchedule() override;
};
 
} // namespace simu5g
 
#endif /* STACK_MAC_SCHEDULING_MODULES_QOSAWARESCHEDULER_H_ */
 