Dynamic Self-configuration of User QoS for Next Generation Network

Traditional network configuration managements for users´ QoS can achieve well performance to some extent, but all of them could not be applied to the next generation network (NGN) directly, such as integrated services (Intserv) and differentiated services (Diffserv) typically. To solve this issue, we propose a framework of dynamic QoS self-configuration (FDQS) in this paper. Utility function and interruption mechanism are integrated into FDQS where utility function is utilized to express the priorities of users´ QoS and interruption mechanism to dynamically correct those priorities during transmission of data packets. Simulation results show that the proposed FDQS holds the same QoS level with Diffserv in well network state, however when network congestion happens, the level of QoS of FDQS is higher than Diffserv almost by 10%.