Concurrent Event Detection for Asynchronous Consistency Checking of Pervasive Context

—Contexts, the pieces of information that capture the characteristics of computing environments, are often inconsistent in the dynamic and uncertain pervasive computing environments. Various schemes have been proposed to check context consistency for pervasive applications. However, existing schemes implicitly assume that the contexts being checked belong to the same snapshot of time. This limitation makes existing schemes do not work in pervasive computing environments, which are characterized by the asynchronous coordination among computing devices. The main challenge imposed on context consistency checking by asynchronous environments is how to interpret and detect concurrent events. To this end, we propose in this paper the Concurrent Events Detection for Asynchronous consistency checking (CEDA) algorithm. An analytical model, together with corresponding numerical results, is derived to study the performance of CEDA. We also conduct extensive experimental evaluation to investigat...

• Type: Conference
• Year: 2009
• Where: PERCOM
• Authors: Yu Huang 0002, Xiaoxing Ma, Jiannong Cao, XianPing Tao, Jian Lu
• Keywords: Context Consistency, PERCOM 2009, Pervasive Computing Environments, Uncertain Pervasive Computing, Wireless Networks