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Wireless sensor network multi-path routing mechanism supporting division of valid domain

A wireless sensor and effective field technology, applied in the field of computer networks, can solve the problems of unreliable data transmission, etc., and achieve the effect of improving survival time and enhancing reliability

Inactive Publication Date: 2009-12-23
BEIJING JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the problem of unreliable data transmission due to the existence of invalid domains, and establishes a multi-path routing mechanism to bypass invalid domains, thereby improving the stability of data transmission

Method used

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  • Wireless sensor network multi-path routing mechanism supporting division of valid domain
  • Wireless sensor network multi-path routing mechanism supporting division of valid domain
  • Wireless sensor network multi-path routing mechanism supporting division of valid domain

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Embodiment Construction

[0044] The present invention firstly defines invalid domains and invalid nodes. In the practical application of wireless sensor networks, some areas in the network are likely to be unreliable due to energy holes, data congestion, coverage blind spots, etc. We define this unreliable area as an invalid area, otherwise it will be is a valid domain.

[0045] Invalid nodes are divided into two categories: one is the node in the invalid area, after disaster, energy exhaustion, congestion, etc., the node is directly declared as an invalid node; the other is the node at the boundary of the invalid domain, and its neighbors There is one and only one node. When receiving a packet from a neighbor node, it cannot continue to forward the packet, which is also an invalid node.

[0046] A wireless sensor network multi-path routing mechanism that supports effective domain differentiation, including nodes obtaining neighbor node information through information interaction, and establishing a ...

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Abstract

The invention relates to a wireless sensor network multi-path routing mechanism supporting division of a valid domain, comprising the steps of utilizing nodes to obtain neighboring node information by information interaction, establishing a neighboring node table, utilizing the target node to cache multi-path routing request information, selecting the one with the best performance for carrying out the routing reply, leading the routing reply information to bypass an invalid domain and establishing the multi-path routing greatest disjoint through the interaction mechanism of the neighboring node table. Establishing the greatest disjoint multi-path routing through the interaction mechanism of the neighboring node table by adopting the multi-path routing mechanism supporting the division of the valid domain, and introducing the concepts of the valid domain and the invalid domain thereby avoiding the unreliable nodes in the invalid domain from participating the data transmission, enhancing the reliability and the stability of the data transmission and improving the survival time of a network by multi-path load balancing.

Description

technical field [0001] The invention relates to a method for realizing a multipath routing mechanism of a wireless sensor network, in particular to a multipath routing mechanism of a wireless sensor network supporting effective domain distinction, and belongs to the technical field of computer networks. Background technique [0002] Routing protocol is one of the core technologies in the research field of wireless sensor networks, and the performance of routing protocols is closely related to the performance of the entire network. Compared with the routing protocols of traditional networks, the routing protocols of wireless sensor networks have the following characteristics: energy priority, based on local topology information, data-centric, and application-dependent. According to the above characteristics of the sensor network routing mechanism, when designing the routing mechanism according to the specific application, the sensor network routing protocol should meet the ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W84/18
Inventor 高德云张宏科梁露露牛延超郑涛龚颖莹
Owner BEIJING JIAOTONG UNIV