Local and Global QoS-aware Token Bucket Parameters Determination for Traffic Conditioning in 3rd Generation Wireless Networks

Based on the framework of employing traffic shaping at the UE and policing at the RNC, we propose a local and global QoS-aware token bucket parameter determination technique for traffic conditioning in 3G wireless networks in this paper. The local QoS-awareness is achieved by the tradeoff between the shaping delay and the out-ofprofile probability at the token bucket traffic shaper, and the global QoS-awareness is obtained by joint consideration with packet loss ratio at the system level. By tuning the system operating on the obtained global ’optimal’ shaping parameters, the requirements for all concerned QoS attributes are guaranteed. The numerical results with respect to the system model considered are also presented.