scholarly journals A Timestamp Tree-Based Cache Invalidation Report Scheme in Mobile Computing Environments

2006 ◽  
pp. 1065-1068
Author(s):  
Hakjoo Lee ◽  
Jonghyun Suh ◽  
Sungwon Jung ◽  
Sooyoung Lee ◽  
Junguck Lee
Keyword(s):  
Mobile Computing ◽  
Cache Invalidation ◽  
Invalidation Report ◽  
Computing Environments

Context Management Middleware in Heterogeneous Mobile Computing Environments

2010 ◽  
Author(s):  
Salim Raza Qureshi ◽  
R. B. Patel ◽  
B. P. Singh
Keyword(s):  
Mobile Computing ◽  
Context Management ◽  
Computing Environments

Personalized cache management for mobile computing environments

2003 ◽  
Vol 87 (4) ◽  
pp. 221-228
Author(s):  
Ho-Sook Kim ◽  
Hwan-Seung Yong
Keyword(s):  
Mobile Computing ◽  
Cache Management ◽  
Computing Environments

Location Privacy in Mobile Computing Environments

2006 ◽  
pp. 936-945 ◽  
Author(s):  
John P. Baugh ◽  
Jinhua Guo
Keyword(s):  
Mobile Computing ◽  
Location Privacy ◽  
Computing Environments

Ensuring Serializability for Mobile-Client Data Caching

2009 ◽  
pp. 3021-3030
Author(s):  
Shin Parker ◽  
Zhengxin Chen
Keyword(s):  
Mobile Computing ◽  
Data Management ◽  
Mobile Environments ◽  
Prevention Policy ◽  
Two Phase ◽  
Mobile Client ◽  
Data Caching ◽  
Client Server ◽  
Client Data ◽  
Computing Environments

Data management in mobile computing has emerged as a major research area, and it has found many applications. This research has produced interesting results in areas such as data dissemination over limited bandwidth channels, location- dependent querying of data, and advanced interfaces for mobile computers (Barbara, 1999). However, handling multimedia objects in mobile environments faces numerous challenges. Traditional methods developed for transaction processing (Silberschatz, Korth & Sudarshan, 2001) such as concurrency control and recovery mechanisms may no longer work correctly in mobile environments. To illustrate the important aspects that need to be considered and provide a solution for these important yet “tricky” issues in this article, we focus on an important topic of data management in mobile computing, which is concerned with how to ensure serializability for mobile-client data caching. New solutions are needed in dealing with caching multimedia data for mobile clients, for example, a cooperative cache architecture was proposed in Lau, Kumar, and Vankatesh (2002). The particular aspect considered in this article is that when managing a large number of multimedia objects within mobile client-server computing environments, there may be multiple physical copies of the same data object in client caches with the server as the primary owner of all data objects. Invalid-access prevention policy protocols developed in traditional DBMS environment will not work correctly in the new environment, thus, have to be extended to ensure that the serializability involving data updates is achieved in mobile environments. The research by Parker and Chen (2004) performed the analysis, proposed three extended protocols, and conducted experimental studies under the invalid-access prevention policy in mobile environments to meet the serializability requirement in a mobile client/server environment that deals with multimedia objects. These three protocols, referred to as extended server-based two-phase locking (ES2PL), extended call back locking (ECBL), and extended optimistic twophase locking (EO2PL) protocols, have included additional attributes to ensure multimedia object serializability in mobile client/server computing environments. In this article, we examine this issue, present key ideas behind the solution, and discuss related issues in a broader context.

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