A systematic framework for evolving TinyOS

TinyOS is a key element of the software infrastructure for the research and development community involved in realizing wireless sensor networks (WSNs). In order to improve the long-term impact of the research developed by the WSN community, we contend that it is important to exploit Moore’s Law to augment TinyOS on current and future sensor motes. The tenfold increase in available RAM since the earliest motes makes possible the introduction of important and useful operating system constructs such as priorities and true multithreading. The phased introduction of these capabilities should maintain compatability with the existing body of nesC source code. Our framework, called TinyMOS, provides an evolutionary pathway that ultimately allows nesC applications to execute in parallel with other system threads.