METHOD FOR IMPROVING POWER CONSUMPTION IN A DCF-BASED WIRELESS NETWORK, CONCERNED WITH MINIMIZING THE POWER CONSUMPTIONS OF TERMINALS WHICH COMMUNICATE WITH EACH OTHER BY USING A BEACON INTERVAL DIVIDED INTO AN ATIM WINDOW SECTION AND A DOZE STATE SECTION ACCORDING TO IEEE 802.11 STANDARDS

摘要

PURPOSE: A method for improving power consumption in a DCF(Distributed Coordinated Function)-based wireless network is provided to prevent power from being unnecessarily consumed by classifying the beacon section at an ATIM(Announcement Traffic Indication Message) Window section according to whether a data packet to be transmitted exists and making a terminal, receiving a beacon signal, transferred to a doze state directly according to the received timing. CONSTITUTION: An ATIM Window section is divided into an ETS(Earlier Time Slot) section and an LTS(Later Time Slot) section(S31). In case that a terminal has a data packet to transmit to another terminal, the terminal transmits a beacon signal to each terminal at the ETS section. If the terminal doesn't have any data packet to transmit, the terminal transmits a beacon signal to each terminal at the LTS section(S32). If a terminal receives the beacon signal at the LTS section, the terminal enters a doze state at once, without waiting until the doze state section(S33).