Hybrid concurrency control for mobile computing

Sung Ho Cho, Jong Min Lee, Chong Sun Hwang, Won Gyu Lee

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

In this paper, we propose a hybrid concurrency control scheme which can alleviate effects of frequent disconnections and limitation of bandwidth in mobile computing environments. If a transaction in a mobile host executes only read operations, our concurrency control scheme is the same as the optimistic concurrency control scheme based on timestamp history. Otherwise, if it executes write operations, the write set has to be sent to a fixed host during the execution phase. If a disconnection with the mobile host occurs, the fixed host performs a pre-validation of the write set. As a result of this pre-validation, if conflicts are detected, the transaction is aborted. Otherwise, we use the locking method which is called weak lock. Our scheme will reduce number of aborts and validation time without message overheads.

Original languageEnglish
Pages478-483
Number of pages6
Publication statusPublished - 1997
EventProceedings of the 1997 2nd High Performance Computing on the Information Superhighway, HPC Asia'97 - Seoul, South Korea
Duration: 1997 Apr 281997 May 2

Other

OtherProceedings of the 1997 2nd High Performance Computing on the Information Superhighway, HPC Asia'97
CitySeoul, South Korea
Period97/4/2897/5/2

ASJC Scopus subject areas

  • Computer Science(all)

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    Cho, S. H., Lee, J. M., Hwang, C. S., & Lee, W. G. (1997). Hybrid concurrency control for mobile computing. 478-483. Paper presented at Proceedings of the 1997 2nd High Performance Computing on the Information Superhighway, HPC Asia'97, Seoul, South Korea, .