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Routing method and system based on olsr protocol

A protocol and routing technology, applied in the network field, can solve the problems of increasing the overall network throughput, lost data packets, etc., to avoid repeated transmission, break through throughput bottlenecks, and improve network throughput.

Active Publication Date: 2016-04-20
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] However, these routing protocols based on ad hoc networks are fixed routing protocols like OLSR. When the link is disconnected, it still takes a certain amount of time to update the routing table and lose some data packets.
When the link status is not good, the network traffic is too large or the network topology changes, it will limit the improvement of the overall network throughput.

Method used

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  • Routing method and system based on olsr protocol
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  • Routing method and system based on olsr protocol

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Embodiment Construction

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0047] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0048]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as ...

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Abstract

The invention discloses a routing method based on the OLSR (Optimized Link State Routing) protocol. The method comprises the following steps of: carrying out network coding on the original data packets of a source node in a manner of taking n data packets as a batch to get multiple data groups; broadcasting the data groups to one group of multipoint relay nodes selected by the source node; carrying out network coding again on the received data groups by each multipoint relay node in the group of multipoint relay nodes selected by the source node, and broadcasting the data groups to the next group of multipoint relay nodes, repeating, until receiving the acknowledgement information of a destination node by the multipoint relay nodes; and decoding the received data groups by the destination node to get the original data packets. Since the data groups are transmitted in a broadcasting manner, network resource consumption caused by reconstruction of routing can be avoided, and the network coding can effectively avoid repeated transmission of data. Thus, the method breaks the throughput capacity bottleneck caused by the conventional routing protocol, and effectively improves the network throughput of an ad hoc network. Moreover, the invention further provides a routing system based on the OLSR protocol.

Description

【Technical field】 [0001] The present invention relates to a network technology, in particular to a routing method and system based on OLSR protocol. 【Background technique】 [0002] The main challenge faced by self-organizing network routing is how to adapt the traditional distributed routing database stored in nodes to the dynamic changes of network topology. Multi-hop routing in self-organizing networks is accomplished by the cooperation of ordinary nodes, not by dedicated routing devices. Therefore, a dedicated and efficient wireless multi-hop routing protocol must be designed. At present, in addition to the more mature OLSR protocol, generally recognized representative achievement protocols include DSDV (Destination Sequence Distance Vector) routing protocol, DSR (Dynamic Routing) protocol, RFC4728, TORA (Temporary On-Demand) routing algorithm, AODV (Adhoc on-demand distance vector) routing protocol, RFC3561, etc. [0003] However, these routing protocols based on ad h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04W80/00H04W84/18H04L1/00
Inventor 陈敏陈爱张伟朱英黄晓霞
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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