Modeling Traffic Detection Function with DPI in 3GPP Policy and Charging Control System

• Main Authors: Hung-YangHsieh, 謝泓仰
• Other Authors: Sok-Ian Sou
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/9ya367

碩士 === 國立成功大學 === 電腦與通信工程研究所 === 102 === With the popularity of mobile devices and advances in wireless network technology, a wide variety of Over-The-Top (OTT) applications have been used by mobile user. Facing data explosion brought by OTT applications, operators act as bitpipe and hard to effectively identify different OTT applications from network-level information. In this thesis, we propose a reference model for application based policy control along with a two-phase packet filtering technique for the 3GPP Policy and Charging Control (PCC) system to perform application awareness for advanced policy control. We also present a framework to support application information mapping with PCC functionality and application data flow. Moreover, an analytical model and extensive simulation are developed to investigate the application detection performed in the PCC system. Numerical results showed that packet arrival rate and number of required signature packets significantly affect performance for application detection procedure.