METHOD TO QUASI-SYNCHRONISE TRANSMISSIONS IN AD-HOC WIRELESS LANS

摘要

In a MC-CDMA system asynchrony is minimized in order to increase the performance of the Multi-User Detector (MUD) at the receiver of a mobile station. Asynchrony is minimized by quasi-synchronizing the stations (mobile or otherwise) in the ad-hoc network to initiate transmissions only at regular intervals in time. The intervals have a duration that is equal to a multiple of the duration of a multi-carrier symbol. At present, the IEEE 802.11 standard sets a multi-carrier symbol duration to be 4 µsec.