Title :
A Hybrid Cache Cohrency Scheme for Ubiquitous Mobile Clients
Author :
Choi, Miseon ; Park, Wonik ; Kim, Young-Kuk
Author_Institution :
Chungnam Nat. Univ., Daejeon
Abstract :
We propose a new cache coherency scheme named HCCS(hybrid cache coherency scheme) to facilitate ubiquitous data access of mobile clients. To cope with the limitations of ubiquitous computing environments, it integrates the cache invalidation scheme using broadcast channel into the publish/subscribe-based data synchronization scheme using two-way communication channel. We present novel algorithms and system architecture for the HCCS. By integrating two schemes, the HCCS provides substantial benefits: allows updates on the mobile client which are restricted in the cache invalidation scheme using broadcast channel and disconnected operations, improves the scalability. The HCCS scheme also gives proper support to the short disconnection of mobile clients, dynamically adapts to changes of disconnection period of the mobile clients.
Keywords :
broadcast channels; cache storage; information retrieval; mobile computing; broadcast channel; communication channel; data access; data synchronization; hybrid cache coherency scheme; ubiquitous mobile clients; Bandwidth; Broadcasting; Communication channels; Information technology; Mobile computing; Pervasive computing; Scalability; Transaction databases; Ubiquitous computing; Wireless networks;
Conference_Titel :
Convergence Information Technology, 2007. International Conference on
Conference_Location :
Gyeongju
Print_ISBN :
0-7695-3038-9
DOI :
10.1109/ICCIT.2007.205