Transmission method for reducing redundant data packets in named data MANET network

Abstract

The invention discloses a transmission method for reducing redundant data packets in a named data MANET network. An acknowledgement (ACK) field is added in an interest packet, the field contains the name of a content received by a requester, and the name is recorded as Name-ack; the node receiving the interest packet checks whether a table item waiting for the Name-ack exists in a PIT table of the node or not, and if the table item waiting for the Name-ack exists in the PIT table, the table item is deleted; when the node receives a late response data packet, the node discards the late response data packet and does not forward it any more; and if the repeated response data packets arrive at the moment, the repeated response data packets are discarded due to the absence of responding PIT items and are not forwarded continuously, so that the number of the repeated response data packets in the network can be reduced. Compared with the prior art, in the named data MANET network, forwarding of other redundant data packets about the interest request is blocked, the network flow is saved, and the overall performance of the named data MANET network is improved.

Description

technical field [0001] The invention relates to a transmission method for reducing redundant data packets in a Named-data Mobile Ad Hoc Network (NDM), which belongs to the technical field of network information transmission and communication. Background technique [0002] In recent years, with the development of network communication technology, users' Internet access speed has been greatly improved, but with the continuous development of the Internet, especially the emergence of emerging technologies such as cloud computing, big data, and the Internet of Things, the modern Internet has long since A small scientific experiment network has become a global information infrastructure network, and it has also changed from a static network to a network with more mobile devices. Although today's Internet is very successful, in the face of the current trend of content-centric services However, the TCP / IP network based on the content location as the underlying architecture is not pe...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that in the NDM network, after the interest packet is broadcast in the routing node, multiple routing nodes in the network return data packets with the same content, causing a large number of redundant data packets to be transmitted in the network and occupying the network bandwidth. The present invention Design and implement a transmission control strategy used in the NDM network, aiming to reduce the transmission of redundant data packets in the NDM network, thereby saving network bandwidth resources, reducing network delay, and improving the overall performance of the NDM network

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