Research of presence service testbed on cloud-computing environment

Presence service has become one of the key application services, which can be applied in many areas, such as buddy status, tele-working, ticket sale, the Internet of things, location-based service and so on. And cloud computing, widely used to provide a variety of IT services, has been a new method of sharing infrastructure. This paper presents a design and implementation of presence service deployed on a cloud computing environment. Open source implementations such as a cloud platform, a presence server, an XCAP server are deployed to establish the testbed. The testbed practically analyzes the presence service work flows, WEB interface for presence service. And the service quality in the cloud environment is analyzed through many special stress tests. Finally, the paper points out many evolutions of the testbed, and extends presence service to IMS system.