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Through we experienced at the Eastern Japan Great Earthquake on March 11, 2011, a disaster information gathering systems are strongly needed to widely collect the disaster state around the evaluated areas, correctly analyze the degree of damages and quickly make decision of disaster recovery response. For this requirement, a mobile video surveillance system on a vehicle based on wireless network is...
Application mobility is a subcategory of service mobility, being defined as the process of migrating applications between different hosts during application execution. In this paper we present a decentralized architecture for web-based adaptive application mobility, using the WebRTC framework. To the best of our knowledge, our proposal is the first of its kind within the area. It is our purpose to...
How to establish a trusted framework in an untrusted environment is an important problem in many areas. So it is in the field of cloud service. It's also hard to find the balance between assuring security of the cloud users' privacy and keeping the usability and efficiency of the cloud service. This paper proposes a scheme of virtual data center, which works as a cloud-agent. We adopt two key technologies,...
Cloud services must upgrade continuously in order to maintain competitive. However, a large body of empirical evidence suggests that, upgrade procedures used in practice are failure-prone and often cause planned or unplanned downtime. In this paper, we first define what is cloud service online upgrade, and then we analyze the shortcomings of current mainstream cloud service online upgrade mechanisms...
Since Big data analysis needs specific algorithms and computation resources, general user should get analysis results unilaterally from information provider who has related infrastructures. In this paper, we show user-driven economic data analysis framework. Using the proposed framework and mobile App, user can select and transmit the kind of data and analysis parameters. The server of information...
The current financial situation, together with the new market conditions, has led to major changes in the ICT sector over the last few years. Many of the services that were once only offered by operators are now being provided by third parties through the cloud. This situation has promoted new business models against the traditional ones. Furthermore, these economic changes have conducted to socio-cultural...
In a virtualization environment that serves multiple tenants, storage consolidation at the filesystem level is desirable because it enables data sharing, administration efficiency, and performance optimizations. The scalable deployment of filesystems in such environments is challenging due to intermediate translation layers required for networked file access or identity management. First we present...
The Astronomical & Physics Cloud Interactive Desktop (ACID) has been developed for the prototype of CTA Science Gateway in Catania, Italy. ACID is based on a web environment that, avoiding any installation on a local PC, allows the use of plenty of software packages for both on-line and off-line analysis of astrophysical data. The users are able to exploit, if applicable, the native Graphical...
Medical imaging research deals with large, heterogeneous and fragmented amounts of medical images. Such challenges lead to the need for secure, federated and functional medical image storage within this research community. With limited IT professional and research fund, the community is better provided with an outsourcing arrangement. Cloud computing promises lower cost, high scalability and availability...
In many client-facing applications, a vulnerability in any part can compromise the entire application. This paper describes the design and implementation of Passe, a system that protects a data store from unintended data leaks and unauthorized writes even in the face of application compromise. Passe automatically splits (previously shared-memory-space) applications into sandboxed processes. Passe...
Bioinformatics tools require large-scale processing mainly due to very large databases achieving gigabytes of size. In federated cloud environments, although services and resources may be shared, storage is particularly difficult, due to distinct computational capabilities and data management policies of several separated clouds. In this work, we propose a storage policy for BioNimbuZ, a hybrid federated...
This paper presents tagged-MapReduce, a general extension to MapReduce that supports secure computing with mixed-sensitivity data on hybrid clouds. Tagged-MapReduce augments each key-value pair in MapReduce with a sensitivity tag. This enables fine-grained dataflow control during execution to prevent data leakage as well as supporting expressive security policies and complex MapReduce computations...
The objective of our paper is to propose and experiment a hybrid Cloud computing framework which is able to handle huge data. Previously we proposed this architecture with adequate feasibility analysis. Here we discuss a prototype system using national ID database structure of Bangladesh which is prepared. We implemented and experimented each of the modules of the system prototype. The infrastructure...
Currently, cellular operators are struggling to relieve congestion on their networks in the face of rapidly growing mobile data traffic. While deploying an increasing number of base stations is expected to mitigate the disproportion between user demand and available radio resources, this solution is costly and plagued with many practical challenges. An attractive alternative is to enable cellular...
Medical adherence deals with whether patients take the prescribed drugs accordingly. When patients do not adhere, it may have adverse results and also increase the cost of health care. Inter active voice (IVR) response is currently being used in telecommunication networks both fixed and mobile. In these networks, it is used to access additional services such as account recharge and balance inquiry...
In this paper we present an efficient big data collection model in Body Area Network (BANs) using cloudlet-based system prototype. The novelty of the proposed work is to have the monitored data of BANs in a large scale and deliver it in reliable manner to the service providers. A prototype of BANs is proposed in this paper to include virtualized machines and Cloudlet in order to characterize the efficient...
Efficient content delivery is a constantly evolving challenge on the modern Internet. Reducing the impact of duplicate deliveries of identical content is a key factor in reducing congestion and transit costs for smaller networks. This work leverages SDN concepts and mechanisms in order to transparently store and deliver content from a local cache to the client, thus lightening the load on the WAN...
Traditional checkpointing techniques are facing a grave challenge when applied to multi-tenancy software-as-a-service (SaaS) systems due to the huge scale of the system state and the diversity of users' requirements on the quality of services. This paper proposes the notion of tenant level checkpointing and an algorithm that exploits Big Data techniques to checkpoint tenant's meta-data, which are...
With computers and servers becoming increasingly widespread, a growing amount of public attention has been focused on improving the efficiency of the server power supply. In this paper, the high-voltage bus converter in the present architecture of the server power supplies is replaced by the multiple output converter to improve the efficiency as there are a variety of loads. Aimed at improving the...
This paper describes the virtual planning office “VPO” from the viewpoint of the quality of spatial comfort “QoSC” toward supplying attractive products for consumers, and constructs a prototype of the VPO system. In addition, the validity of the actual products' effects the VPO focuses on is verified through the prototype. The VPO is a new concept that sends consumers' preference on actual products...
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