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In mobile environment, the asymmetric communication between mobile clients and server is a distinguishing feature. The conventional query processing mechanisms cannot be directly applied. In this research, we investigate the approach of using separate processing for read-only transactions (ROTs). Since ROTs have a significant proportion in several applications like traffic information service, stock market and auction, using a separate algorithm to process ROTs from update transactions may reduce the degree of data contention. Thus, both the update and read-only transactions can be executed in a more efficient manner. Besides, using separate algorithm for ROTs allows higher degree of concurrency than standard concurrency control protocols. To require a group of ROTs to be conflict serializable with respect to the update transactions, a consistency requirement called Group Strong Consistency is defined. The performance of the protocol for Group Strong Consistency was examined through a series of simulation experiments.
@inproceedings {DBLP:conf/mdm/ChanLL03, author = {Eddie Y. M. Chan and Victor C. S. Lee and Kwok-Wa Lam}, booktitle = {Mobile Data Management}, title = {Using Separate Processing for Read-Only Transactions in Mobile Environment.}, pages = {106-121}, year = {2003}, url = {db/conf/mdm/mdm2003.html#ChanLL03}, ee = {http://link.springer.de/link/service/series/0558/bibs/2574/25740106.htm}, crossref = {conf/mdm/2003}, bibsource = {DBLP, http://dblp.uni-trier.de} }  ©2005 Association for Computing Machinery |
