A middleware framework providing adaptive quality of service for bluetooth

by 1976- Skaug, Thor Egil

by Thor Egil Skaug, M.S. Washington State University May 2004 Chair: David E. Bakken Bluetooth was originally conceived as a replacement for wires on human interface devices such as keyboards and headsets. More recently, its range has been extended such that it has the potential to become a viable and inexpensive alterative to other wireless technologies. However, its suitability for more general-purpose applications and traffic is an open question, especially with regards to application-level quality of service (QoS) control. This thesis analyzes the QoS mechanisms and hooks Bluetooth provides in terms of their potential as a building block for middleware-level mechanisms. In particular, the ability to add higher-level mechanisms useful for adapting to changing conditions on a wireless link is assessed. The thesis describes the design and implementation of a configurable set of middleware-level mechanisms that provides such adaptation, and provides an experimental evaluation of this framework. vi