DIFFERENTIAL CHANNEL ACCESS CONTROL METHOD BY CONSIDERING FAIRNESS IN A WIRELESS NETWORK ENVIROnmENT AND A DEVICE THEREOF CAPABLE OF FAIRLY GUARANTEEING THE PROCESSING EFFICIENCY OF TRANSMITTING DATA PACKETS HAVING DIFFERENT SIZES

摘要

PURPOSE: A differential channel access control method by considering fairness in a wireless network environment and a device thereof are provided to delay the processing of a corresponding data packet as many as the number of back-off times by calculating the back-off times in proportion to the size of transmission data packets.;CONSTITUTION: When a transmission target packet is arrived, a device evaluates a channel state(S10,S20). If the channel state is an idle state, the device permits the channel access of the packet(S30,S60). If the channel state is a congested state, the device calculates an additional ABC(Additional Back-off Counter) in proportion to the size of the transmission target packet(S40). The device evaluates the channel state, after waiting as many as the additional ABC(Additional Back-off Counter)(S50).;COPYRIGHT KIPO 2013;[Reference numerals] (AA) Start; (BB) End; (S10) Packet arrival; (S20) Channel state evaluation; (S30) Idle state; (S40) ABC calculation according to the size of the packet; (S50) Waiting as much as ABC; (S60) Channel access permission