Abstract
In this paper, we consider power-saving techniques for mobile terminals in ubiquitous environment. As a means for realizing power-saving, we focus on caching techniques and attempt to save the power consumption required for wireless network devices by reducing meaningless transmissions using local caches. The use of caching techniques is required to manage the consistency between original data and their caches. Many existing protocols for keeping the cache consistency have been extensively developed during the past decade so far, and we investigate and summarize these existing techniques in this paper. Finally, we describe our target ubiquitous environment and propose a probabilistic cache consistency protocol.
