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Inter-multicast network coding control method applied to multi-source multi-destination network

A technology of network coding and control method, which is applied in the field of network coding control between multicasts in multi-source and multi-sink networks. Effects on Transport Fairness

Inactive Publication Date: 2013-06-05
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared with the traditional intra-multicast network coding, inter-multicast network coding is more complicated

Method used

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  • Inter-multicast network coding control method applied to multi-source multi-destination network
  • Inter-multicast network coding control method applied to multi-source multi-destination network
  • Inter-multicast network coding control method applied to multi-source multi-destination network

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Embodiment Construction

[0032] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0033] This embodiment takes image 3 The network topology shown is taken as an example for illustration.

[0034] use Represents a multi-source and multi-sink communication network, where Represents the set of nodes in the network, Represents a collection of links in the network. and Respectively represent the source node set and the destination node set in the network. per source node ( ) can send data to the corresponding destination node through multiple paths . express A pair of source and destination nodes in , represent multiple paths between. Each link in the network have a bandwidth capacity .

[0035] Expressed as Each random process represents the data collected and sent by the corresponding source node. Indicates the source node assigned to the path to destination...

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Abstract

The invention discloses an inter-multicast network coding control method applied to a multi-source multi-destination network, which comprises that: an intermediate node of the network judges whether inter-multicast network coding is required or not by comparing a transmission gain obtained by direct data storage and forwarding with the transmission gain obtained by the inter-multicast network coding; and simultaneously, the intermediate node judges whether the inter-multicast network coding can be decoded or not according to data information received by exchange with a downstream node of the intermediate node, and selects an optimal multicast group to perform the inter-multicast network coding. By the method, network throughput can be effectively increased, the decoding performance of theinter-multicast network coding is ensured at the same time, and when the bandwidth of a network link is finite, transmission fairness among the multicast groups can be effectively ensured.

Description

technical field [0001] The present invention relates to a multicast inter-network coding control method applied to a multi-source multi-sink network. The intermediate node in the network compares the transmission gain of simply storing and forwarding data with the transmission gain after multicast inter-network coding increases. The size can determine whether network coding is required; at the same time, the data information exchanged between the intermediate node and its downstream nodes can determine whether the network coding between multicasts can be decoded, and how to perform network coding between multicasts. technical background [0002] In network communication, how to maximize information interaction and improve network throughput has always been a hot topic in information theory and network technology research. Network coding technology allows the intermediate nodes of the network to perform data fusion coding, which can effectively improve the throughput of the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00H04L12/18
Inventor 邹君妮谭冲汪敏
Owner SHANGHAI UNIV
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