27-12-2011, 06:45 PM
Check out the attachment
02-04-2012, 01:34 PM
sir im not getting d ppts and full document of this topic... can yu pls send me d ppts and ful document of dis project,,,
thanking yu
24-07-2012, 03:41 PM
Supporting Efficient and Scalable Multicasting over Mobile Ad Hoc Networks
Supporting Efficient.doc (Size: 47.5 KB / Downloads: 49) Aim: The mainstay of this project is to propose a novel Efficient Geographic Multicast Protocol (EGMP) which uses a virtual-zone-based structure to implement scalable and efficient group membership management. Abstract: Group communications are important in Mobile Ad hoc Networks (MANET). Multicast is an efficient method for implementing group communications. However, it is challenging to implement efficient and scalable multicast in MANET due to the difficulty in group membership management and multicast packet forwarding over a dynamic topology. We propose a novel Efficient Geographic Multicast Protocol (EGMP). EGMP uses a virtual-zone-based structure to implement scalable and efficient group membership management. A network-wide zone-based bi-directional tree is constructed to achieve more efficient membership management and multicast delivery. The position information is used to guide the zone structure building, multicast tree construction and multicast packet forwarding, which efficiently reduces the overhead for route searching and tree structure maintenance. Several strategies have been proposed to further improve the efficiency of the protocol, for example, introducing the concept of zone depth for building an optimal tree structure and integrating the location search of group members with the hierarchical group membership management. Existing System Multicast is an efficient method for implementing group communications. However, it is challenging to implement efficient and scalable multicast in MANET due to the difficulty in group membership management and multicast packet forwarding over a dynamic topology. Proposed System The proposed system is to develop a protocol to overcome existing system problems and limitations. We propose a novel Efficient Geographic Multicast Protocol (EGMP). EGMP uses a virtual-zone-based structure to implement scalable and efficient group membership management. A network-wide zone-based bi-directional tree is constructed to achieve more efficient membership management and multicast delivery. The position information is used to guide the zone structure building, multicast tree construction and multicast packet forwarding, which efficiently reduces the overhead for route searching and tree structure maintenance. Zone-supported Geographic Forwarding With a zone structure, the communication process includes an intra-zone transmission and an inter-zone transmission. In our zone-structure, as nodes from the same zone are within each other’s transmission range and are aware of each other’s location, only one transmission is required for intra-zone communications. Transmissions between nodes in different zones may be needed for the network-tier forwarding of control messages and data packets. In EGMP, to avoid the overhead in tracking the exact locations of a potentially large number of group members, location service is integrated with zone-based membership management without the need of an external location server. At the network tier, only the ID of the destination zone is needed. A packet is forwarded towards the center of the destination zone first. After arriving at the destination zone, the packet will be forwarded to a specific receiving node or broadcast depending on the message type. Generally, the messages related to multicast group membership management and multicast data will be forwarded to the zone leader to process. Multicast Tree Construction We present the multicast tree creation and maintenance schemes. In EGMP, instead of connecting each group member directly to the tree, the tree is formed in the granularity of zone with the guidance of location information, which significantly reduces the tree management overhead. With a destination location, a control message can be transmitted immediately without incurring a high overhead and delay to find the path first, which enables quick group joining and leaving. In the following description, except when explicitly indicated, we use G, S and M respectively to represent a multicast group, a source of G and a member of G. It contains three sub modules. They are Multicast session initiation and termination, Multicast group join and Multicast group leave. Multicast Packet Delivery In this subsection, we explain how the multicast packets are forwarded to the members. It contains two modules. They are Packet sending from the source and Multicast data forwarding. In packet sending from the source, after the multicast tree is constructed, all the sources of the group could send packets to the tree and the packets will be forwarded along the tree. In most tree-based multicast protocols, a data source needs to send the packets initially to the root of the tree. In Multicast data forwarding, in our protocol, only zLdrs maintain the multicast table, and the member zones normally cannot be reached within one hop from the source. When a node N has a multicast packet to forward to a list of destinations, it decides the next hop node towards each destination (for a zone, its center is used) using the geographic forwarding strategy described in Zone-supported Geographic Forwarding
23-02-2013, 10:49 PM
actually i need code of supporting efficient and scalable multicast over manet in java language please send me code in java please
25-02-2013, 10:53 AM
to get information about the topic "Supporting Efficient and Scalable Multicasting Over Mobile Ad Hoc Networks" full report ppt and related topic refer the link bellow https://seminarproject.net/Thread-suppor...c-networks |
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