LIBRARIES An Architecture for Adaptable Wireless Networks

This thesis demonstrates the benefits of using a software based, adaptable wireless network protocol stack for voice applications. A design for a Controller Module which facilitates adaptation in the physical layer of wireless devices is presented. Using the Controller Module, designers may define a set of high level rules that govern when and what type of adaptation should take place in the physical layer. The design includes a protocol which enables Controller Modules to communicate physical layer configuration information to each other. To illustrate the use of the Controller, several Controller policies and their benefits are demonstrated. The analysis shows that an adaptable physical layer can provide the best service to the application. In particular, voice applications are able to better react to changing channel conditions and optimize physical layer performance using application specific parameters. As wireless devices become even more pervasive, there will be an increase