Review on Scalable Server Architecture for Updating Mobile User Status and Presence in Social Networking using Presence Cloud

Now day’s popularity of social network applications on mobile devices is rapidly increasing. Mobile user’s presence information is maintained by mobile presence service, which includes users GPS location, status, network address etc. Due to frequent updates messages distributed by presence server may face scalability problem in presence cloud services. To deal with this problem, efficient and scalable server architecture is proposed which is called Presence Cloud. After arrival of mobile user into the network, Presence cloud search for mobile user’s friends and mobiles user’s arrival is notified to them. The performance of Presence Cloud is analyzed in terms of the search satisfaction level and search cost. The search cost is determined in terms of total number of messages generated by presence server after arrival of user. Search satisfaction level is defined in terms of time it takes to search friend list of the arriving user. The result of simulations achieves performance gains and search satisfaction by using Presence Cloud in the search cost