VERFAHREN ZUM VERFOLGEN DER GRÖSSE EINER MULTICAST-ZUHÖRERSCHAFT

摘要

The method involves transmitting to receivers receiving a multicast a plurality of requests for feedback, each request including a probability parameter (P). Each terminal replies to this (or not) with a corresponding probability. One then counts the number (r) of replies to each request; determines, from the counts and parameters, estimates of the number of receivers; and filters the estimates. The method further includes repeatedly computing a new probability parameter to be included in a subsequent feedback request, filtering the estimate based on a parameter value; including adaptively adjusting the parameter value of said filtering of the estimate as a function of the power spectrum of past values of the estimate.