Title :
Update algorithm for replicated signaling databases in wireless and advanced intelligent networks
Author_Institution :
AT&T Bell Labs., Holmdel, NJ, USA
fDate :
3/1/1997 12:00:00 AM
Abstract :
In the Personal Communication Networks (PCN), and the Universal Personal Telecommunications (UPT) services and possibly other services offered by the Advanced Intelligent Networks (AIN), customer records for call routing and other signaling functions can be distributed and replicated at multiple sites to improve access delay and system availability. We observe that these applications can tolerate data inconsistency among replicated records for a short period of time because the main consequence of accessing obsolete data is a small probability of call misroute. By exploiting this observation, we propose the Primary-Writer Protocol(PWP) as the concurrency control and commitment protocol for updating the replicated databases. The fraction of calls misrouted under the PWP is analyzed. Our results reveal that the fraction of calls misrouted under the PWP is very small for the expected customer behaviour in the PCN (wireless networks), and the UPT and other AIN services
Keywords :
concurrency control; distributed databases; intelligent networks; personal communication networks; replicated databases; wireless LAN; Personal Communication Networks; Primary-Writer Protocol; Universal Personal Telecommunications; call routing; commitment protocol; concurrency control; intelligent networks; replicated databases; replicated signaling databases; wireless networks; Access protocols; Availability; Banking; Concurrency control; Distributed databases; Intelligent networks; Personal communication networks; Routing; Telecommunication services; Wireless networks;
Journal_Title :
Computers, IEEE Transactions on