Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks

Both wireless sensor networks and service-oriented architectures (SOA) are very popular distributed computing paradigm. Web service is a widely accepted implementation of SOA. However, web service is based on Internet protocols and requires adaptation to suit the restrictions posed by WSNs. The deve...

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Main Authors: Wen Ouyang, Min-Lang Chen
Format: Article
Language:English
Published: Wiley 2014-02-01
Series:International Journal of Distributed Sensor Networks
Online Access:https://doi.org/10.1155/2014/649505
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author Wen Ouyang
Min-Lang Chen
author_facet Wen Ouyang
Min-Lang Chen
author_sort Wen Ouyang
collection DOAJ
description Both wireless sensor networks and service-oriented architectures (SOA) are very popular distributed computing paradigm. Web service is a widely accepted implementation of SOA. However, web service is based on Internet protocols and requires adaptation to suit the restrictions posed by WSNs. The development of Internet of Things has triggered research of web services of WSNs which made the consolidation of these technologies possible. At the same time, web service integration enables the support of more functionalities since many applications rely on not just one web service, but a whole school of them. Thus, how to compose and integrate different web services efficiently to provide complicated services becomes an essential topic. This paper investigates a problem which minimizes the number of hops of web services while integrating these web services to finish a set of tasks. We call this problem Minimum Hops of Service Integration Problem. It is proved that, when there are no precedence relationships between the tasks, the decision problem is NP-complete. This implies that this web services integration problem is NP-hard. For the case when the relationships between the tasks are in linear order, a polynomial-time, optimal web service integration algorithm, using greedy strategy, is provided.
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spelling doaj-art-29a9559f26524b53837d81874dcc69f42025-02-03T01:30:50ZengWileyInternational Journal of Distributed Sensor Networks1550-14772014-02-011010.1155/2014/649505649505Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor NetworksWen OuyangMin-Lang ChenBoth wireless sensor networks and service-oriented architectures (SOA) are very popular distributed computing paradigm. Web service is a widely accepted implementation of SOA. However, web service is based on Internet protocols and requires adaptation to suit the restrictions posed by WSNs. The development of Internet of Things has triggered research of web services of WSNs which made the consolidation of these technologies possible. At the same time, web service integration enables the support of more functionalities since many applications rely on not just one web service, but a whole school of them. Thus, how to compose and integrate different web services efficiently to provide complicated services becomes an essential topic. This paper investigates a problem which minimizes the number of hops of web services while integrating these web services to finish a set of tasks. We call this problem Minimum Hops of Service Integration Problem. It is proved that, when there are no precedence relationships between the tasks, the decision problem is NP-complete. This implies that this web services integration problem is NP-hard. For the case when the relationships between the tasks are in linear order, a polynomial-time, optimal web service integration algorithm, using greedy strategy, is provided.https://doi.org/10.1155/2014/649505
spellingShingle Wen Ouyang
Min-Lang Chen
Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
International Journal of Distributed Sensor Networks
title Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
title_full Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
title_fullStr Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
title_full_unstemmed Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
title_short Web Services Integration Strategy with Minimum Hops Constraint in Wireless Sensor Networks
title_sort web services integration strategy with minimum hops constraint in wireless sensor networks
url https://doi.org/10.1155/2014/649505
work_keys_str_mv AT wenouyang webservicesintegrationstrategywithminimumhopsconstraintinwirelesssensornetworks
AT minlangchen webservicesintegrationstrategywithminimumhopsconstraintinwirelesssensornetworks