Service distance based service discovering method in wireless self-organizing network environment

A wireless self-organization and service discovery technology, applied in the field of self-organization network, can solve the problems of fast dynamic change of self-organization network topology and large scalability, etc., and achieve the goal of reducing network burden, reducing delay time and narrowing search range Effect

Inactive Publication Date: 2012-09-05
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of the above methods take into account the key characteristics of self-organizing networks, such as fast topology dynamic changes and large scalability.

Method used

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  • Service distance based service discovering method in wireless self-organizing network environment
  • Service distance based service discovering method in wireless self-organizing network environment
  • Service distance based service discovering method in wireless self-organizing network environment

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Embodiment Construction

[0105] The specific implementation of the present invention is described here by taking a copy service in a conference application scenario as an example, so as to further illustrate the purpose, features and advantages of the present invention. However, the protection scope of the present invention is not limited to the following examples.

[0106] Application scenarios such as figure 1 As shown, SP1, SP2, SP3, SP4, and SP5 are all service providers, respectively providing color copying service S1, black and white copying service S2, color copying service S3, color printing service S4, and black and white printing service S5. Node SR is the service requester and it needs the copy service.

[0107] The specific implementation steps of the present invention are as follows:

[0108] 1. According to the specific application field, the domain knowledge experts carry out the semantic description and group definition of the service, and use the OWL-S language to construct the serv...

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Abstract

The invention belongs to the technical field of the Ad Hoc network, specifically relates to a service discovery method in the wireless Ad Hoc network environment based on the service distance, which comprises a definition and generation algorithm for service advertisement datagram, a construction and update algorithm for service information cache and an efficient service discovery method based onthe service distance. The method not only avoids the problems existing in the broadcasting type service discovery method that the scalability is bad, the network load is large and the broadcasting type service discovery method can not adapt to the Ad Hoc network environment, but also facilitate the user to quickly find more stable and reliable services by utilizing the service distance information, thus enhancing the efficiency of the service discovery.

Description

technical field [0001] The invention belongs to the technical field of self-organizing networks, and in particular relates to a service distance-based service discovery method that can adapt to a wireless self-organizing network environment. Background technique [0002] Service discovery is the process of querying the location of services in the network and collecting relevant information. This technology is an essential prerequisite for service composition and service execution. Therefore, it occupies a very important position in all aspects of service computing. [0003] In a fixed wired network, typical Web service discovery methods and protocols include: Jini, UPnP, Salutation / Salutation-lite, and SLP (Service Location Protocol, service location protocol). Jini is a distributed service discovery architecture developed by SUN. Its goal is to transform the traditional network into a flexible and easy-to-manage tool, so that users can easily discover services. Its core is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
Inventor 荆一楠王雪平孙未未
Owner FUDAN UNIV
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