SVivaldi Class Reference

#include <SVivaldi.h>

Inheritance diagram for SVivaldi:

Public Member Functions
virtual void	init (NeighborCache *neighborCache)
double	getLoss () const
void	stopAdaptation ()
Public Member Functions inherited from Vivaldi
virtual	~Vivaldi ()
void	processCoordinates (const simtime_t &rtt, const AbstractNcsNodeInfo &nodeInfo)
Prox	getCoordinateBasedProx (const AbstractNcsNodeInfo &info) const
virtual AbstractNcsNodeInfo *	getUnvalidNcsInfo () const
virtual AbstractNcsNodeInfo *	createNcsInfo (const std::vector< double > &coords) const
const VivaldiCoordsInfo &	getOwnNcsInfo () const
const std::vector< double > &	getOwnCoordinates () const
double	getOwnError () const
double	getOwnHeightVector () const
Public Member Functions inherited from AbstractNcs
virtual	~AbstractNcs ()
virtual bool	isReady ()
virtual void	handleTimerEvent (cMessage *msg)
virtual bool	handleRpcCall (BaseCallMessage *msg)

Protected Member Functions
virtual double	calcError (const simtime_t &rtt, double dist, double weight)
virtual double	calcDelta (const simtime_t &rtt, double dist, double weight)
Protected Member Functions inherited from Vivaldi
virtual void	finishVivaldi ()
virtual void	updateDisplay ()

Private Attributes
double	lossC
double	effectiveSample
double	loss
double	lossResetLimit

Additional Inherited Members
Protected Attributes inherited from Vivaldi
VivaldiCoordsInfo *	ownCoords
double	errorC
double	coordC
bool	showPosition
GlobalStatistics *	globalStatistics
NeighborCache *	neighborCache

Detailed Description

Definition at line 34 of file SVivaldi.h.

Member Function Documentation

double SVivaldi::calcDelta ( const simtime_t &  rtt, double  dist, double  weight  )

protectedvirtual

Reimplemented from Vivaldi.

Definition at line 53 of file SVivaldi.cc.

{
    // calculate loss factor
    loss = lossC + (1 - lossC) * loss;
    if(fabs(dist - SIMTIME_DBL(rtt)) > lossResetLimit) loss = 0.0;

    return coordC * weight * (1 - loss);
}

double SVivaldi::calcError ( const simtime_t &  rtt, double  dist, double  weight  )

protectedvirtual

Reimplemented from Vivaldi.

Definition at line 43 of file SVivaldi.cc.

{
    // get avg absolute prediction error
    double sum = neighborCache->getAvgAbsPredictionError();

    // update weighted moving average of local error
    return (sum * errorC) + ownCoords->getError() * (1 - errorC);
}

double SVivaldi::getLoss ( ) const

inline

Definition at line 48 of file SVivaldi.h.

Referenced by DiscoveryMode::sendNewRequest(), and DiscoveryMode::stop().

{ return loss; };

void SVivaldi::init ( NeighborCache *  neighborCache )

virtual

Reimplemented from Vivaldi.

Definition at line 31 of file SVivaldi.cc.

{
    Vivaldi::init(neighborCache);

    lossC = neighborCache->par("svivaldiLossConst");
    lossResetLimit =  neighborCache->par("svivaldiLossResetLimit");

    loss = 0;
    WATCH(loss);
}

void SVivaldi::stopAdaptation ( )

inline

Definition at line 49 of file SVivaldi.h.

{ loss = 1; };

Member Data Documentation

double SVivaldi::effectiveSample

private

Definition at line 38 of file SVivaldi.h.

double SVivaldi::loss

private

Definition at line 39 of file SVivaldi.h.

Referenced by calcDelta(), getLoss(), init(), and stopAdaptation().

double SVivaldi::lossC

private

Definition at line 37 of file SVivaldi.h.

Referenced by calcDelta(), and init().

double SVivaldi::lossResetLimit

private

Definition at line 40 of file SVivaldi.h.

Referenced by calcDelta(), and init().

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The documentation for this class was generated from the following files:

• SVivaldi.h
• SVivaldi.cc