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Routing method for opportunity network

A routing and network technology, applied in the field of self-adaptive controllable multicast routing, can solve problems such as not considering node energy fairness, achieve fairness, low overhead rate, and improve network life

Active Publication Date: 2016-06-22
上海前瞻创新研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the SprayandWait routing method simply sends a copy of the message to the node that does not contain the message in the Spray stage, without considering the fairness of node energy in the network, and has a certain degree of blindness

Method used

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Embodiment Construction

[0047] The present invention considers a generalized opportunity network as a network model, and the network is abstracted as a non-connected directed graph G(V,E). Among them, V represents the collection of nodes in the network, and E represents the contact between nodes. Assume that every node V in the set V j All have the same limited energy, and this energy is non-renewable. Once the energy of a certain node is exhausted, the node will not be able to continue communication and become an unavailable node.

[0048] Energy model:

[0049] The nodes in the network have the same initial energy E, then the residual energy E of each node at the beginning r for E. The energy consumption of each node is mainly concentrated in data transmission, signal processing, and hardware operation. Among them, the energy consumption of data transmission is the highest. This method mainly considers the three aspects of forwarding data energy consumption, scanning energy consumption and recei...

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Abstract

The invention discloses a self-adaptive controllable multicast routing method for an opportunity network and a network node. Aiming at characteristics of node movement and link frequent change in the opportunity network, the invention discloses a new routing measure standard. According to the measure standard, node energy, possibility that a relay node meets an information destination node, information lifetime, information hop count and information expected copy numbers in the network are taken into account comprehensively. Based on the measure standard, the self-adaptive controllable multicast routing method is disclosed. Simulation test results show that problems of node failure caused by overload of nodes and too quick energy consumption is avoided; energy balance between network nodes is ensured; network service lifetime is prolonged; information delivery rate in the network is improved; and the copy number of information in the network is controlled effectively.

Description

technical field [0001] The invention relates to the field of opportunistic networks, in particular to an opportunistic network-oriented routing method, in particular to an opportunistic network-oriented adaptive controllable multicast routing method. Background technique [0002] With the emergence of a large number of portable mobile devices with short-distance communication capabilities, such as mobile phones and PDAs, self-organizing networks have developed rapidly. In traditional mobile ad hoc networks, nodes need to establish a complete end-to-end path before they can transmit data in a "store-and-forward" manner. However, the mobility of nodes and the frequent change of communication links make the traditional mobile ad hoc network not suitable for the application of ad hoc network. [0003] An opportunistic network is a kind of network that does not require a complete path between the source node and the destination node. It utilizes the encounter opportunities broug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/10H04W40/18H04W40/22H04W84/18
CPCH04W40/10H04W40/18H04W40/22H04W84/18Y02D30/70
Inventor 张立臣赵若男王小明李鹏王亮林亚光
Owner 上海前瞻创新研究院有限公司
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