Fairness Assessment of the Adaptive Token Bank Fair Queuing Scheduling Algorithm

Adaptive Token Bank Fair Queuing (ATBFQ) algorithm has been proposed as a cross-layer scheduling technique for 4G wireless systems recently. This algorithm takes higher layer Quality of Service (QoS) attributes such as priorities, interflow fairness, and delay constraints into account. By selecting the User Terminals (UTs) in a certain prioritized manner derived from QoS attributes, the performance of the UTs, suffering from high interference and/or shadowing in particular, can be improved. The ATBFQ algorithm has been tested in a multicell environment in the presence of intercell interference by comparing with reference Score Based (SB) and Round Robin (RR) algorithms.