N Screen
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N-Screen technology aims to provide a seamless computing environment by supporting synchronized data, programs, or displays across multiple smart devices. It utilizes cloud computing to virtually interconnect and provision computing resources. The proposed framework allows users to have their screen seamlessly displayed on virtualized screen devices through a virtual device driver, media bridging framework, and network-enabled devices that can decode and display the synchronized content.
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This document summarizes the HIMALIS architecture, which proposes separating a host's identifier and locator to allow for mobility. It describes the key components of HIMALIS, including domain name, host ID, and ID registries that resolve names to IDs and locators. HIMALIS stores dynamic bindings between host names, IDs, locators, and security keys. When a host moves networks or changes interfaces, it sends updates to the local Host Name Registry. This allows transport layer communication to continue despite network layer protocol or locator changes.
DPRoPHET in Delay Tolerant Network
PRoPHET uses its delivery predictability of node encounters and transitivity to forward bundles to its neighbor node. Regardless of their distance, it faces delivery dilemmas in a source node and drawbacks of low delivery ratio and high delay in case two or more neighbor nodes carry equal delivery predictability. To solve such consequences, we propose a Distance and Probabilistic Routing Protocol using History of Encounters and Transitivity (DPRoPHET) with the use of cross layer implementation for distance value retrieval. Our simulation results show that, by adding distance metric to the existing delivery predictability vector, DPRoPHET outperforms PRoPHET.
Routing protocol for delay tolerant network a survey and comparison
Routing protocols for delay tolerant networks can be categorized as either flooding or forwarding strategies. Flooding strategies replicate messages to multiple nodes to increase delivery probability but use more resources, while forwarding strategies select a single path using network knowledge to minimize resource usage but have lower delivery probability. The survey compares these routing protocol categories and their advantages for different applications in delay tolerant networks, which must deal with intermittent connectivity and large delays.
UNICEF
The presentation slide is aim to briefly introduce about the fact of UNICEF such as
- History
- Mission
- Structures
- Fundraising
Desktop to Cloud Transformation Planning
Traditional desktop delivery model is based on
a large number of distributed PCs executing operating system
and desktop applications. Managing traditional desktop
environments is incredibly challenging and costly. Tasks like
installations, conguration changes, security measures require
time-consuming procedures and dedicated deskside support. Also
these distributed desktops are typically underutilized, resulting
in low ROI for these assets. Further, this distributed computing
model for desktops also creates a security concern as sensitive
information could be compromised with stolen laptops or PCs.
Desktop virtualization, which moves computation to the data
center, allows users to access their applications and data using
stateless thin-clientdevices and therefore alleviates some of
the problems of traditional desktop computing. Enterprises can
now leverage the exibility and cost-benets of running users'
desktops on virtual machines hosted at the data center to enhance
business agility and reduce business risks, while lowering TCO.
Recent research and development of cloud computing paradigm
opens new possibilities of mass hosting of desktops and providing
them as a service.
However, transformation of legacy systems to desktop clouds
as well as proper capacity provisioning is a challenging problem.
Desktop cloud needs to be appropriately designed and provisioned
to offer low response time and good working experience
to desktop users while optimizing back-end resource usage and
therefore minimizing provider's costs. This paper presents tools
and approaches we have developed to facilitate fast and accurate
planning for desktop clouds. We present desktop workload
proling and benchmarking tools as well as desktop to cloud
transformation process enabling fast and accurate transition of
legacy systems to new cloud-based model.
Content centric networking
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Pervasive computing and its Security Issues
This document outlines key aspects of pervasive computing including:
1. It discusses the evolution of computing from mainframes to personal computers to the emerging era of pervasive computing.
2. It describes the architecture of pervasive computing including applications, middleware, intelligent computing, mobile computing, context-awareness and affective computing components.
3. It examines wireless communication technologies used in pervasive computing like Zigbee, Bluetooth, WiFi and discusses security issues with vulnerabilities in these wireless systems including denial of service attacks, eavesdropping and message injection.
Sensor Network
This document discusses wireless sensor networks and middleware approaches for them. It describes wireless sensor networks as consisting of distributed autonomous sensor nodes that monitor physical environments cooperatively. It outlines common sensor node components and network architectures. It then defines middleware as a software layer that manages complexity and heterogeneity. Key middleware design principles for wireless sensor networks include supporting limited resources, scalability, and data aggregation. The document outlines several middleware approaches, including those based on global behavior, local behavior, virtual machines, databases, and modular programming.
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A Strategic Approach: GenAI in Education
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N Screen
- 1. SOK Phearin Department of Computer Science MBC Lab., Konkuk University
- 2. What is N-Screen technology Virtualized System Infrastructure Client Device Virtualization
- 3. New technological approaches: ◦ Cloud Computing: interconnected and virtualized computers provisioning and presenting as one or more unified computing resources ◦ N-Screen: seamless computing among various smart devices
- 4. A technology aimed to provide seamless computing environment by supporting synchronized data or program or display. Contents are stored on the Cloud.
- 6. N-Screen Service can be categorized as: ◦ Data Synchronization Ex. Dropbox, ucloud, box.net ◦ Ceaseless Display Ex. U+ Box
- 7. Framework Layer – seamless computing environment Application Layer – run on every kind of devices Human Computer Interaction – display seamlessly
- 8. Virtual Device Driver kernel level device driver functioning in remote screen device Receives and sends data to client side by TCP Multiple connections to supply duplicated N-Screen at the same time
- 9. Media Bridging Framework Manages multimedia data Handles playback event and send the information to clients with streaming data
- 11. Legacy Display Device No computing and communication capability for decoding Adapter is used to convert received data in RGB format VIA Pico-ITX
- 12. Network Enable Device computing enable devices Run a dedicate program
- 13. N-Screen service provides users data, program, and display synchronization The proposed framework lets users have seamless screen displayed on the virtualized screen devices
Editor's Notes
- To provide seamless computing environment of N-Screen service, a framework has been proposed Virtual Machine - provide virtual operating system with the network virtualized screen
- To provide seamless computing environment of N-Screen service, a framework has been proposed Virtual Machine - provide virtual operating system with the network virtualized screen