In this article, we design and demonstrate a signaling architecture for multicast and broadcast services over a\r\nlaboratory-emulated worldwide interoperability for microwave access (WiMAX) network. WiMAX is a broadband\r\nwireless access technology which includes different quality of service levels. Currently, a significant research effort\r\nfocuses on data transmission optimization and mobility support for multicast and broadcast services. Our proposal\r\nis fully IP-based, and the relevant signaling architecture is modular in all its entities and extensible to other, non-\r\nWiMAX, IP access networks. We specifically address the non-trivial support of multicast services, which has been\r\ndemonstrated through a prototype implementation of our proposal for an Internet protocol television (IPTV)\r\nservice. This prototype has been implemented by using open source technologies and its signaling is orchestrated\r\nby a JAIN SLEE server. The results obtained show that the implemented system is scalable, can achieve both high\r\nsignaling throughput and low service latency, and has a signaling overhead lower than similar IMS-based solutions.
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