Introducing Service Differentiation in a Bluetooth Piconet

摘要

In this paper, we focus on the Bluetooth wireless network, analyzing its ability to support Quality of Service (QoS) requirements defined by the application. We focus on two QoS parameters : (ⅰ) an application constraint denoting the importance degree of a message, and (ⅱ) an end-to-end delivery deadline. In a first step, we introduce a local scheduling accounting for the two QoS parameters in One-Round Robin (1-RR). We evaluate the performances of this enhanced version. In a second step, we define a new Bluetooth global scheduling, called Class-Based Earliest Deadline First (CB-EDF). It takes into account the two QoS parameters at the global level. Simulation results show that CB-EDF achieves a better service differentiation than enhanced 1-RR and allows the coexistence of messages with different application constraints.