Integrated IMS-femtocell testbed

This paper conducted the integration deployment of IP Multimedia Subsystem and LTE-based femtocell network in a lab scale environment (test-bed). A feasible integration designs called the SIP/IMS-based integration with all-IP connectivity is proposed as a new design for the 4G wireless technology called the Next Generation Wireless Network (NGWN). The performance evaluations of integrated IMS - Femtocell were not conducted independently, but as one system. End-to-end test-bed simulation and measurements were conducted and analysed. Some test cases, i.e., the registration process to IMS core network and call setup between two IMS´ clients were deployed in various testing time. The test cases included the measurements of generated traffics, jitter, max delta, and bandwidth usage. The analysis of packet stream considered five most common protocols in IMS system, i.e., SIP, HTTP, TCP, UDP and RTP. Despite having some issues, the simulation test-bed of integrated IMS-Femtocell network has been proven to working well.