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Concurrency Control for Transaction Management in Mobile Computing  

Rhee, Hae-kyung (Dept. of Computer Information at Yong-in Songdam College)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.40, no.6, 2003 , pp. 22-31 More about this Journal
Abstract
Traditional concurrency control strategies for database system are inappropriate for mobile computing environments in which communication disconnection could occur frequently. The time available to access transactions may be extremely limited in mobile computing. In order to ensure that this time is utilized most effectively, the short-lived transactions must be a main stream of transactions. Service handoffs which occur due to communication disconnection, could degrade the performance of mobile transactions especially for short-lived transactions. Altruistic locking protocol is in its nature favorable to short-lived transactions since it applies the donation of locks to long-lived transactions as early as possible. Performance for short-lived transactions could be improved when we applied altruistic locking to mobile computing.
Keywords
Mobile computing; Service handoff; Altruistic locking; Donate operation; Multidatabase;
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