0000000000732480
AUTHOR
Liping Mu
A hybrid network for maritime on-board communications
Current maritime on-board communications have to be enhanced for safety and security, where ubiquitous technologies can help, together with providing comfort and convenience to the crew and passengers. Employing wireless sensor networks on board is one recent practice of implementing ubiquitous technology for ships, where further study is needed because of the connectivity challenges. Meanwhile, it is important for an on-board communication system to be reliable and flexible for handling emergency situations. In this paper, we propose a solution of employing ubiquitous technology on ships in a way that both connectivity and emergency handling are examined. Two key aspects of this proposal a…
Towards integrated operations for ships
Maritime customers will benefit greatly from integrated operations between ship and shore. It requires integrating diverse information services within a variety of communication environments, which is a complex task. The common approach to dealing with complex tasks is to use a divide-and-conquer policy and solve problems independently. Since there are mainly two challenges involved - interoperability among heterogeneous applications and connectivity through difficult maritime networks, to handle them separately has become useful. While interoperability and connectivity solutions work well individually, if we put them together in the maritime context, problems arise. We b services based int…
Maritime data integration using standard ISO 15926
Paper presented at the Twentieth (2010) International Offshore and Polar Engineering Conference. Also available on the Conference site: http://www.isope.org/publications/proceedings/ISOPE/ISOPE%202010/data/toc.htm The Oil & Gas industry is moving forward with Integrated Operations (IO). This includes a strong focus on data integration issues. There are different ways to achieve data integration, and ontology-based approaches have drawn much attention. For maritime data integration, the international standard ISO 15926 has been developed to integrate and represent the information in and across process plants. In this article, we follow the ontology-based approach and use the ISO 15926 standa…
An Integrated Wireless Communication Architecture for Maritime Sector
Published version of a chapter in the book: Multiple Access Communications. Also available from the publisher at http://dx.doi.org/10.1007/978-3-642-23795-9_17 The rapid evolution of terrestrial wireless systems has brought mobile users more and more desired communication services. Maritime customers are asking for the same, such as the concepts of “Broadband at Sea” and “Maritime Internet”. Quite a lot of research work has focused on the development of new and better maritime communication technologies, but less attention has been paid on interworking of multiple maritime wireless networks or on satisfying service provisioning. To address this, an integrated wireless Communication Architec…
Information and Communication Technologies for Integrated Operations of Ships
Doktorgradsavhandling i informasjons- og kommunikasjonsteknologi, Universitetet i Agder, Grimstad, 2013 Over the past three decades, information and communication technologies have filled our daily life with great comfort and convenience. As the technology keeps evolving, user expectations for more challenging cases that can benefit from advanced information and communication technologies are increasing, e.g., the scenario of Integrated Operations (IO) for ships in the maritime domain. However, to realize integrated operations for ships is a complex task that involves addressing problems such as interoperability among heterogeneous operation applications and connectivity within harsh mariti…
Formal verification of a Cooperative Automatic Repeat reQuest MAC protocol
Author's version of an article published in the journal: Computer Standards & Interfaces. Also available from the publisher at: http://dx.doi.org/10.1016/j.csi.2011.12.001 Cooperative communications, in which a relay node helps the source node to deliver its packets to the destination node, are able to obtain significant benefits in terms of transmission reliability, coverage extension and energy efficiency. A Cooperative Automatic Repeat reQuest (C-ARQ) MAC protocol has been recently proposed to exploit cooperative diversity at the MAC layer. in this paper, we validate the integrity and the validity of the C-ARQ protocol using formal methods. The protocol logic is modeled in SDL and implem…
Delay-oriented data traffic migration in maritime mobile communication environments
Maritime ship-to-shore communication has to satisfy different user requirements while suffering dynamic communication circumstances. Satellite networks are the primary means to communicate between ship and shore. The idea of compensating the deficiency of satellite communication with other terrestrial networks is not new. However, focus was often on how to keep users always best connected, without considering respective application needs or the potential disconnections. In this paper, we propose a delay-oriented satellite data traffic migration solution, exploiting the route repetitiveness and predictability of ships, leveraging the delay tolerance of many communication applications, with t…
Specification of modelling languages in a flexible meta-model architecture
Originally, meta-models were used to specify the structure (abstract syntax) of modelling languages. This is reflected both in meta-languages like MOF and Ecore, and the four-layer meta-model architecture. Presently, meta-modelling is used for specification of complete languages. In this situation, it turns out that the traditional meta-languages are not always expressive enough to capture all language aspects. This usually implies the use of more than one metalanguage in the meta-model architecture to cover the different language aspects. There are many approaches to address this challenge. In this paper, we analyze these approaches, and based on this analysis, we re-think the meta-model a…