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As the cost of human full genome sequencing continues to fall, we will soon witness a prodigious amount of human genomic data in the public cloud. To protect the confidentiality of the genetic information of individuals, the data has to be encrypted at rest. On the other hand, encryption severely hinders the use of this valuable information, such as Genome-wide Range Query (GRQ), in medical/genomic...
This paper provides a comprehensive security analysis of Mobile Cloud Computing (M2C). It first describes two Cloud Computing (CC) scenarios. The first scenario describes one Cloud service provider providing all necessary services. The second scenario describes the case of two Cloud service providers collaborating to provide necessary services for one Client. The two scenarios focus on Authentication...
Cloud computing is a new network computing paradigm of distributed application environment. It utilizes the computing resource and storage resource to dynamically provide on-demand service for users. The distribution and parallel characters of cloud computing can leverage the railway freight system. We implement a cloud computing-based architecture for freight system application, which explores the...
The use of MapReduce (MR) model has attracted much attention because of the reductions in the costs involved in satisfying the storage and computational demands. However, authentication methods proposed for such model is subjected with rooms for improvements. In the initial design and implementation of the MR model such as Hadoop, issues of security including authentication was not considered. It...
The cloud environment is a heterogeneous, dynamic and complex environment. The characteristic of Ant Colony Optimization (ACO), such as robustness and self adaptability, can just match the cloud environment. ACO is an algorithm that imitates the ants foraging, and it has a good application in the problems that want to find the optimal solution. The task scheduling in cloud computing is also the problem...
With the rapid development of cloud computing, it is attractive for enterprise companies to outsource their data files for sharing in cloud servers, as cloud computing can offer desirable characteristics, such as on-demand self-service, broad network access, and rapid elasticity. However, by uploading data files onto cloud servers, data owners (i.e. the companies) will lose control over their own...
Many application classes, such as archiving, backup of thousands of nodes in an organization, video sharing, etc., require highly reliable and scalable storage systems. Since it is now feasible to build such storage systems with advanced open source technologies, the challenge becomes how to best utilize those technologies to build and operate such a storage system with optimized cost and performance...
Tasks scheduling problem in cloud computing is NP-hard, and it is difficult to attain an optimal solution, so we can use intelligent optimization algorithms to approximate the optimal solution, such as ant colony optimization algorithm. In order to solve the task scheduling problem in cloud computing, a period ACO_based scheduling algorithm (PACO) has been proposed in this paper. PACO uses ant colony...
Currently Internet of Things (IoT) and multimedia technologies have entered the healthcare field through ambient aiding living and telemedicine. However there are still several obstacles blocking in the way, the toughest ones among which are IoT interoperability, system security, streaming Quality of Service (QoS) and dynamic increasing storage. The major contribution of this paper is proposing an...
Mobile computing is an ever-growing research area. Owing to temporary limitation of current mobile hardware technology and intrinsic mobility, computation on mobile devices will always be a compromise in most research work. Mobile computing can seamlessly augment the cognitive and collaborative abilities of users by using compute-intensive or interactive capabilities in computing system. With cloud...
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