METHOD AND MODEM FOR ADAPTIVE ALLOCATION OF THE PILOT CARRIER IN A MULTI CARRIER SYSTEM

摘要

In a multi-carrier system the pilot carrier which is transmitted between two stations for synchronisation purposes, is re-allocated to a new frequency whenever it is disturbed by noise or a single frequency disturber in the vicinity thereof. A less noisy frequency is selected by means of a specific criterion to be fulfilled, for instance based on signal to noise ratio measurements performed for all carriers in the multi-carrier system.