• Journal of Internet Computing and Services
    ISSN 2287 - 1136(Online) / ISSN 1598 - 0170 (Print)
    http://jics.or.kr/

Optimistic Concurrency Control Using Time-stamp Ordering in Mobile Databases


Kim Dae-Ho, Jeong Byeong-Soo, Lee Young-Koo, Journal of Internet Computing and Services, Vol. 7, No. 4, pp. 79-90, Aug. 2006
Full Text:
Keywords: Mobile Computing, Concurrency Control, Broadcast Environment, Data Consistency, Time-stamp

Abstract

Data broadcasting is an efficient method for disseminating data, and is widely accepted in the database applications of mobile computing environments because of its asymmetric communication bandwidth between a server and mobile clients. This requires new types of concurrency control mechanism to support mobile transactions executed in the mobile clients, which have low-bandwidths toward the server. In this paper, we propose an OCC/DTA (Optimistic Concurrency Control with Dynamic Time-stamp Adjustment) protocol that can be efficiently adapted to mobile computing environments. The protocol reduces communication overhead by using client-side validation procedure and enhances transaction throughput by adjusting serialization order without violating transaction semantics. We show that the proposed protocol satisfies data consistency requirements, and simulate that this protocol can improve the performance of mobile transactions in data broadcasting environments.


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Cite this article
[APA Style]
Kim Dae-Ho, Jeong Byeong-Soo, & Lee Young-Koo (2006). Optimistic Concurrency Control Using Time-stamp Ordering in Mobile Databases. Journal of Internet Computing and Services, 7(4), 79-90.

[IEEE Style]
K. Dae-Ho, J. Byeong-Soo and L. Young-Koo, "Optimistic Concurrency Control Using Time-stamp Ordering in Mobile Databases," Journal of Internet Computing and Services, vol. 7, no. 4, pp. 79-90, 2006.

[ACM Style]
Kim Dae-Ho, Jeong Byeong-Soo, and Lee Young-Koo. 2006. Optimistic Concurrency Control Using Time-stamp Ordering in Mobile Databases. Journal of Internet Computing and Services, 7, 4, (2006), 79-90.