Access Control Method Based on Sample Monitoring for Volatile Traffic in Interactive TV Services

This paper proposes an access control method based on sample monitoring for volatile traffic in interactive TV services. The proposed method controls the access of interactive TV users by utilizing the following functions. Firstly, the total volume of access induced by all users is accurately estimated by measuring the volume of access induced by sample users. Then, based on the estimated results, access from other non-sample users is controlled so that they are induced within the system capacity. By applying the proposed method, congestion and overload expected during interactive TV services is effectively avoided, even when the volume of induced access momentarily exceeds the system capacity. The performance of the proposed method is evaluated through experiments on a test bed where a vast number of access is generated. The obtained results quantitatively demonstrate its effectiveness.