Disclosed is a control method of a communication system including at least one sensor that a user wears, a wireless communication apparatus and a coordinator. The control method of the communication system includes: in the coordinator, receiving a proxy authority request for proxy with respect to the at least one sensor and the coordinator from the wireless communication apparatus, and granting the proxy authority to the wireless communication apparatus; in the wireless communication apparatus, creating a user identifier corresponding to the user; in the wireless communication apparatus, searching for the at least one sensor that the user wears, and forming a pairing with the at least one found sensor; in the wireless communication apparatus, making a request to the at least one found sensor for association information for the association with the coordinator and the sensor, and receiving the association information; in the wireless communication apparatus, making a request to the coordinator for association proxy for an association between the at least one found sensor and the coordinator, and receiving the association proxy in response to the request; and in the coordinator, requesting data by forming an association with the at least one found sensor, and receiving data corresponding to the data request.