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In this paper we discuss the mechanism of mul-tipoint relays (MPRs) to efficiently do the flooding of broadcast messages in the mobile wireless networks. Multipoint relaying is a technique to reduce the number of redundant re-transmissions while diffusing a broadcast message in the network. We discuss the principle and the functioning of MPRs, and propose a(More)
We study the benefits of multicast routing in the performance of wireless ad hoc networks. In particular we show that if a node wishes to communicate with n distinct destinations, multicast can reduce the overall network load by a factor Oð ffiffi ffi n p Þ, when used instead of uni-cast. One of the implications of this scaling property consists in a(More)
Project DUMBO (Digital Ubiquitous Mobile Broadband OLSR) deploys Mobile Ad Hoc Network (MANET) for post- disaster situations where fixed network infrastructure is unavailable; an emergency network has to be put in place urgently. DUMBO allows streaming video, VoIP and short messages to be simultaneously transmitted from a number of mobile laptops or PDA's(More)
Wireless ad-hoc networks are autonomous, self-configurating and adaptive. Thus, such networks are excellent candidates for military tactical networks, where their ability to be operational rapidly and without any centralized entity is essential. As radio coverage is usually limited , multihop routing is often needed; this is achieved by an ad-hoc routing(More)
In this paper we present an extension to the OLSR unicast routing protocol to support multicast routing in mobile ad hoc networks. The proposed protocol is based on Multicast Overlay Spanning Trees (MOST). The main benefits of this approach are twofold. Firstly, it implies that only nodes interested in taking part in the multicast communication need to(More)
Peer-to-Peer (P2P) technology has been shown to be effective for content delivery on the Internet. Its applications such as video streaming on Mobile Ad hoc NETwork (MANET) has been explored while the issue of live video streaming on MANET is still a real challenge due to frequent changes in network topology, and the sensitiveness of radio links. To combat(More)