METHOD FOR SERVER SELECTION FOR PARALLEL DOWNLOADING SERVICE

摘要

PURPOSE: A selection method of a server device for parallel download is provided to minimize an interference phenomenon and a bottle neck phenomenon between the service devices which simultaneously receiving data through a parallel download method. CONSTITUTION: A first network of a tree structure include a terminal device, relay devices, and server devices. The number of children server devices which transmit data to the terminal device through relay devices of the terminal device is assigned to the direct children relay devices of the terminal device based on the number of server devices in the direct children relay devices(S250). The server devices which simultaneously transmit data to the terminal device through a parallel download method are selected by selecting the children server devices according to the direct children relay device of the terminal device(S260). [Reference numerals] (AA) Start; (BB) End; (S210) Searching a plurality of server devices which stores contents desired by a terminal device; (S220) Forming the network(second network) of a tree structure for a terminal device, a plurality of relay devices, and a plurality of server devices; (S230) Labeling a plurality of nodes included in the second network; (S240) Forming a virtual network(first network) from the second network; (S241) Selecting two or more relay devices from a plurality of relay devices; (S242) Setting a parent-children relation between the terminal device, two or more relay devices, and a plurality of server devices; (S250) Allocating the number of children server devices which transmit data to the terminal device through each direct children relay device of the terminal device; (S260) Selecting two or more server devices which simultaneously transmit data to the terminal device according to a parallel download method