Abstraction

Abstract

Radio power management is of paramount concern in wireless sensor networks. While a multitude of power management protocols have been proposed in the literature, their use in real-world systems has been limited. The lack of system support for flexibly integrating different power management policies with a diverse set of applications and network platforms has been the major stopping point. To provide a solution to this problem, we have developed the Unified Power Management Architecture (UPMA) for supporting radio power management in wireless sensor networks [1]. In contrast to the monolithic approach adopted by existing power management solutions, UPMA provides (1) a set of standard interfaces that allow different radio sleep scheduling policies to be easily implemented on top of various MAC protocols at the data link layer, and (2) an architectural framework for composing multiple power management policies into a coherent strategy based on application needs. We have implemented UPMA on top of both the Mica2 and Telosb radio stacks in TinyOS-2.0. This demo shows how the UPMA architecture can be used to easily compose different radio power management protocols together in order to Copyright is held by the author/owner(s)