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Docker has been widely adopted in enterprise-level container environment. As an important part of Docker-based container ecosystem, Docker Registry provides the service of storing, distributing and managing Docker images, which is crucial to run Docker containers. In large-scale container platforms, deploying applications is prone to overburdening Docker Registry with flooding network traffic, and...
Internet of vehicles (IoVs) emerges as a promising technology to facilitate vehicular wireless communication by approving vehicle-to-everything (V2X) services for intelligent transportation systems including vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I) and vehicle-to-pedestrian (V2P) services. V2V networks have been rapidly developed to support short distance data transmission among vehicles...
This paper identifies that the anycast communication pattern is needed in the Machine Type Communications (MTC), where there could be multiple MTC devices being deployed in the same area for the same type of data, the client only cares about the data being retrieved but not where the data comes from. Currently the MTC server can provide such anycast service, but with large signaling overhead and bandwidth...
Article presents method of storing and processing Big Data using object-oriented datatype in commercial relational database server. Methodology was presented based on genomic data. Additionally, some methods of pattern matching implemented in the object were described and commented. Due to set of numerical experiments based on real data the efficiency of the system was testified. Obtain results shows...
Recently, interest in contents utilizing 360 and Virtual Reality images is increasing. These images are generally transformed into Equirectangular projection and transmitted in a 2:1 ratio rectangular shape. However, this method causes distortion of the upper and lower parts of the 360 images which is widely spread. Furthermore, since the spread 360 images requires higher data rate, it is difficult...
Hybrid broadcast-broadband TV (HbbTV) is a global initiative that brings new solutions to world of digital television (DTV) in terms of entertainment. In comparison to previous initiatives, different services are additionally provided in HbbTV. This paper describes an application for displaying of hybrid Electronic Program Guide (EPG) for a digital TV receiver. The application works with and without...
Hybrid Broadcast Broadband TV (HbbTV) became very popular during the last few years, because it provides the users with some new services when watching TV. This paper describes the new proposed application for the subtitle support in the hybrid digital TV applications with relatively simple hardware equipment. The subtitle files are downloaded from the server. Once the respective language is selected,...
Decentralized coded caching is applicable in scenarios where the server does not have enough knowledge about the entire cache network to perform centralized coordination during prefetching, such as when the server is uninformed of the number of active users and their identities in a wireless or mobile environment. Most of known decentralized strategies use random uncoded prefetching followed by coded...
We consider the case of spreadsheet based workgroup collaboration, in which users cooperate through spreadsheets. While spreadsheet exchange through email and shared directories is still the most common way to share data, spreadsheet sharing in the Cloud is rapidly spreading, leveraging the evolution of office tools toward delocalized system over the Cloud. In this paper we observe that spreadsheet...
We study the optimum scheduling of a pushing-based information delivery system, where information is sent from a server to mobile users by using server-initiated pushing actions. Information arrives at the server at random. The server adopts a “hold-then-serve” strategy, where new information is temporarily stored in queue for a later one-time transmission. Based on the current queue status, at any...
ORAM scheme is becoming a study hotspot to access data securely, whether ORAM is based on layer or tree structure, client cache always exists in different ORAM. Some smart devices for example, ceil phone may be as a user with small capacity associated with cloud storage. The optimal client cache should be limited to small constant size or a strict small upper bound. The paper designs a novel client...
The prominent cloud services rely on geographically distributed nodes running replication and other fault-tolerance mechanisms so as to provide flawless availability and dependability. In this paper, we address the communication cost of the well known primary-backup replication protocol, and propose compressed periodic incremental checkpoint algorithms to achieve improved throughput. We set up a replicated...
Replication is useful for supporting fault-tolerance, reliable and recovery oriented distributed systems. Popular application areas include databases, P2P systems, web services and Internet of Things. In this study, we propose utilizing the checkpointing concept for improving the efficiency of the well-known primary-backup replication protocol in distributed systems. We developed a software framework...
This paper is based on the previous research that selects the proper surrogate nodes for fast recovery mechanism in industrial IoT (Internet of Things) Environment which uses a variety of sensors to collect the data and exchange the collected data in real-time for creating added value. We are going to suggest the way that how to decide the number of surrogate node automatically in different deployed...
Coded caching has gained a lot of interest recently. It jointly optimizes placement and delivery phases to create network-coded multicast opportunities to attain performance that surpasses conventional uncoded caching schemes. To the best of our knowledge, all coded caching systems studied in the literature are based on content popularity distributions as seen from the server's point of view. In this...
In this paper we present a new approach to implementing causal consistency in geo-replicated data stores, which we call Optimistic Causal Consistency (OCC). The optimism in our approach lies in that updates from a remote data center are immediately made visible in the local data center, without checking if their causal dependencies have been received. Servers perform the dependency check needed to...
In this paper, we propose an optimal resource pool management for sharable VNFs in service chaining. In the proposed method, each resource pool is managed to place each VNF in servers for multiple service chains by solving an optimization problem. In the optimization problem, VNFs that are shared by multiple service chains are determined, and an appropriate amount of resources can be used for each...
In this paper we propose to consider a study aimed at improving the Honeypot system performance. There is observed architecture of the designed service of collecting and updating common database of exploits, which is necessary for this study, necessary for building and further Honeypot system maintenance. The data obtained using this service are analyzed in order to determine the free server software...
Storage demands in the data centers are growing dramatically for most internet and cloud service providers today. More and more service providers are adopting Software-Defined Storage (SDS) instead of traditional fiber channel based storage appliances due to the lead time, expense, and flexibility. However, data centers are held back by storage I/O that cannot keep up with ever-increasing demand,...
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