Method, apparatus and communication system for estimating on-off traffic characteristic and recording medium recording program for estimating on-off traffic characteristic

An apparatus for estimating an ON-OFF traffic characteristic, comprising:

• a measurement section which measures a packet length and a packet transfer time interval of a communication traffic;
• a data transfer rate variance indicator computation section which computes a data transfer rate variance indicator based on a relative entropy value between the packet transfer time interval which is measured by the measurement section and a packet transfer time interval in case of transferring at a constant transfer rate;
• and
• a computation section which at least approximately computes a predetermined traffic characteristic value using the data transfer rate variance indicator which is computed by the data transfer rate variance indicator computation section.

A recording medium recording a program for estimating an ON-OFF traffic characteristic, for executing, in a computer:

• measurement processing which measures a packet length and a packet transfer time interval of a communication traffic;
• data transfer rate variance indicator computation processing which computes a data transfer rate variance indicator based on a relative entropy value between the packet transfer time interval which is measured by the measurement processing and a packet transfer time interval in case of transferring at a constant transfer rate;
• and
• computation processing which at least approximately computes a predetermined traffic characteristic value using the data transfer rate variance indicator which is computed by the data transfer rate variance indicator computation processing.

An apparatus for estimating an ON-OFF traffic characteristic, comprising:

• measurement means for measuring a packet length and a packet transfer time interval of a communication traffic;
• data transfer rate variance indicator computation means for computing a data transfer rate variance indicator based on a relative entropy value between the packet transfer time interval which is measured by the measurement means and a packet transfer time interval in case of transferring at a constant transfer rate;
• and
• computation means for at least approximately computing a predetermined traffic characteristic value using the data transfer rate variance indicator which is computed by the data transfer rate variance indicator computation means.