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Opportunistic Network Immune Method and System Based on Bitmap Transmission

An opportunistic and network technology, applied in the field of opportunistic network immunity method and system based on bitmap transmission, to achieve the effect of reducing delivery overhead, improving message delivery rate, and reducing huge overhead

Active Publication Date: 2017-04-26
武汉玺闻信息科技有限公司
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Problems solved by technology

It can be seen that these immune mechanisms have a certain degree of limitation

Method used

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  • Opportunistic Network Immune Method and System Based on Bitmap Transmission
  • Opportunistic Network Immune Method and System Based on Bitmap Transmission
  • Opportunistic Network Immune Method and System Based on Bitmap Transmission

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] The opportunistic network immunization method based on bitmap transmission of the present invention comprises the following steps:

[0031] The node generates and stores the confirmation information carrying the corresponding information of the opportunistic network. The confirmation information includes the confirmation bitmap and the past message vector. The past message vector is the past message number generated by the effective message generator in the system for a period of time. The confirmation bitmap is The message delivery status of the number generated by the effective message gen...

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Abstract

The invention discloses an opportunistic network immune method and system based on bitmap transmission. The method includes the following steps that nodes generate confirmation information which carries the corresponding information of an opportunistic network and stores the confirmation information, wherein the confirmation information comprises a confirmation bitmap and a past message vector, the past message vector involves a past message serial number generated by an effective message generator in a period of time in the system, and the confirmation bitmap involves the information transmission condition of the serial number generated by the effective message generator in a period of time in the system after the past message vector; when two nodes encounter, the past message vectors and the confirmation bitmaps of the two nodes are adjusted, the confirmation messages of the two nodes are updated to be consistent, successfully-transmitted messages or overdue messages in a node cache are cleared up according to the updated confirmation messages, and then the messages are forwarded according to a selected route. By means of the opportunistic network immune method and system based on bitmap transmission, the message transmission rate in the opportunistic network can be effectively increased, and the transmission cost is lowered.

Description

technical field [0001] The present invention relates to opportunistic networks, in particular to an opportunistic network immunization method and system based on bitmap transmission. Background technique [0002] With the emergence and popularization of mobile terminals and the wide application of wireless ad hoc networks, in order to study the communication mechanism that can run in actual ad hoc networks, the concept of opportunistic networks emerged as the times require. The opportunistic network does not require a complete link between the source node and the target node, and uses the chance of encounter brought about by node movement to achieve communication. [0003] Opportunistic networks use the "store-carry-forward" method to realize communication between nodes. In order to improve the delivery rate of messages, the routing mechanism of multi-copy transmission is often adopted in opportunistic networks. For nodes with limited resources and networks with precious c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16
Inventor 鲁丽廖剑锋殷福安陈维
Owner 武汉玺闻信息科技有限公司
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