Ant colony algorithm-based distributed service composition method in mobile ad hoc network

A distributed service, mobile ad hoc network technology, applied in the field of mobile ad hoc networks, can solve the problems of wasting network resources, network paralysis, and difficulty in ensuring that combined services meet user QoS requirements.

Active Publication Date: 2015-06-17
SHANGHAI UNIVERSITY OF FINANCE AND ECONOMICS
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Problems solved by technology

[0005] 1) The current service composition methods in MANETs are actually a combination of distributed service discovery and centralized service composition. The so-called consideration of QoS in service composition actually only considers the QoS of each individual service (sub-service) and does not consider The QoS of the network link connecting these sub-services, and the QoS of the network link occupies an important position in MANETs, ​​so the QoS of the combined service cannot guarantee to meet the user's QoS requirements
The existing distributed service composition protocol ado...

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  • Ant colony algorithm-based distributed service composition method in mobile ad hoc network
  • Ant colony algorithm-based distributed service composition method in mobile ad hoc network
  • Ant colony algorithm-based distributed service composition method in mobile ad hoc network

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Embodiment Construction

[0070] The present invention will be described in detail below with reference to the drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation mode and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0071] Such as figure 1 As shown, a distributed service composition method based on an ant colony algorithm in a mobile ad hoc network. Through the ant colony optimization algorithm, the request message of the service composition is propagated among the network nodes to sequentially find the node services that meet the subtasks. Local service discovery is performed on each node of, and at the same time, the discovered local service is combined with the discovered part of the composite service locally to realize the distributed processing in the service composition stage. The purpose of the ant ...

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Abstract

The invention relates to an ant colony algorithm-based distributed service composition method in a mobile ad hoc network. The method comprises the following steps: 1, a service composition message is generated; 2, a service request message is processed; 3, a service response message is generated and spread; 4, optimal composite service is selected; and 5, composite service is called. If a service path happens to be cutoff, a step of adopting a local path repair method or a global path repair method for repairing the path is also provided. Compared with the prior art, historical service path information in the network is made full use of through the ant colony algorithm, a request message is sent directionally in a limited mode, the efficiency of message finding and the efficiency of composite service are improved, and message control load in the network is reduced.

Description

Technical field [0001] The invention relates to the technical field of mobile ad hoc networks, in particular to a distributed service combination method based on ant colony algorithm in mobile ad hoc networks. Background technique [0002] Mobile Ad hoc Networks (MANETs) is an important basic network for ubiquitous computing, sensor networks and the Internet of Things. It is a multi-hop, temporary and autonomous non-central control composed of multiple mobile wireless terminals. The internet. Because the wireless network has the characteristics of self-organization, fault tolerance, rapid deployment, and adaptability, it is currently widely used in disaster relief, environmental protection, data collection, battlefields, logistics, deep sea and space exploration. The mobile ad hoc network is currently receiving extensive attention from academia and business circles, especially in the past ten years, a lot of research and applications have been conducted on it. [0003] Although a...

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Application Information

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IPC IPC(8): H04L29/08H04L12/851H04W28/16
Inventor 韩松乔张勇郝晓玲
Owner SHANGHAI UNIVERSITY OF FINANCE AND ECONOMICS
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