An Efficient Multicasting Architecture for Context-Aware Messaging Services in the Future Internet

Due to large control overhead and latency, traditional multicast and unicast mechanisms are not suitable for context-aware messaging services where multiple nodes subject to a particular context receive several appropriate messages from a particular server. We propose novel multicast architecture for context-aware messaging services. By the aid of additional infrastructure our mechanism builds a multicast tree in a top-down manner from a source to multiple receivers without clients´ JOIN operations while the first data message is delivered. Simulation results show that our mechanism has significantly lower overhead and latency than traditional unicast and multicast mechanisms.