OCC-Mix Approach for Concurrent Mixture of Fixed and Mobile Transactions
Ahmad Al-Qerem, Ala Hamarsheh, Shadi Nashwan
Journal of Digital Information Management, Vol. 15, No. 5, 2017.
DOI: 
Link: http://dline.info/fpaper/jdim/v15i5/jdimv15i5_4.pdf
Abstract:
This paper addresses a new optimisticbased
concurrency control protocol, called OCC-Mix. The
proposed protocol could be used to reduce the scars
wasting and expensive resources of mobile environment.
This can be achieved by avoiding the unnecessary mobile
transaction restarts. Consequently, a dynamic adjustment
of serialization order in the conflicting transactions with
respect to the validating transaction will be used. As a
result, much resources of mobile environment are saved
and a many fixed host transactions finished their execution
without being affected by other mobile transactions. The
performance of the proposed protocol was measured along
with other related CC protocols; the simulation results
show that the performance of these protocols is
consistently much better than the traditional 2PL and OCC
protocols in mixed transaction environments.