1. A printing client management method of a wireless Local Area Network printer that functions as a network server and manages at least one printing client in a Local Area Network, comprising: extracting information from a Media Access Control frame of the at least one printing client that is associated with a Basic Service Set, which includes the wireless LAN printer as a master of the Basic Service Set, the extracted information being information specifying whether the at least one printing client is authenticated to receive services of the wireless LAN printer; forming a list of the at least one printing client by using a Media Access Control address of the Media Access Control frame as an index, the list reflecting a state of the at least one printing client in relation to the wireless LAN printer; managing printing operations of the at least one printing client according to the list by permitting only printing clients authenticated to receive services of the wireless LAN printer to associate with the wireless LAN printer, and monitoring the number and the traffic of the at least one printing client that is associated with the Basic Service Set, and rearranging the association of the at least one printing client to diffuse the traffic of the Basic Service Set, wherein the list of the at least one printing client is restructured in real time according to a beacon signal, and the list is updated when a state of the at least one printing client changes, wherein the at least one printing client is a personal computer, a personal digital assistant, or a cellular phone, that includes a wireless Local Area Network functionality, and wherein the Basic Service Set, including the wireless LAN printer as the master, further includes the only printing clients authenticated to receive services of the wireless LAN printer to associate with the wireless LAN printer as other members of the Basic Service Set.