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In Wireless Mesh Networks (WMNs), users can enjoy the real-time video streaming service anytime and anywhere through the service. Compared to the client/server model, the P2P (Peer-to-peer) approach is more suitable for video streaming applications because of its efficient usage of network resources. However, the multimedia applications are very sensitive to delay time and the performance of packets...
IP multicast plays a very important role in group communication. At the network level IP multicast provides an efficient one-to-many IP packets delivery but without providing any reliability guarantees. Desirable features of reliable multicast include low end-to-end delay, high throughput and scalability. Active networks open a new perspective in providing more efficient solutions to the problems...
On Demand Multicast Routing Protocol (ODMRP) was designed formerly for multicast routing in ad hoc networks. Despite good delivery ratio in several scenarios, ODMRP relies on a periodic refresh mechanism for sending the JOIN QUERY message to maintain mesh robustness. Choosing the appropriate value for refresh interval of this message is of great concern. In addition when mobility speed is high, link...
We propose a new TCP-friendly multicast congestion control for very large groups of receivers. This protocol named M2C is layered and receiver-driven. Like TCP, M2C is composed of a congestion avoidance and a slow start state. However, M2C can re-activate the Slow Start when the current rate is far below the fair one. This protocol is well designed for continuous and long lived data streams, such...
In this paper we have proposed HRSQM, heterogeneous receivers supporting QoS multicast, which is a distributed protocol that creates multicast tree for receivers with heterogeneous QoS requirements. It relies only on local states and does not use any global state. Furthermore, through exhaustive search and carefully selecting branch to connect the new node to the tree, the efficiency of tree is always...
In distributed interactive applications (DIAs) embedded priority, the sender node forwards data to receivers due to their respective priorities. One application level multicast protocol: the priority-based directed minimum spanning tree (PST) was designed for these DIAs. However, the existing PST has no efficient priority selection mechanism and the system consumes a tremendous amount of resource...
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