Tai-Yeon Ku

A Java-based home network middleware architecture supporting IEEE1394 and TCP/IP

IEEE1394 is a standard interface protocol for digital multimedia consumer devices and it also serves to construct home entertainment networks. To integrate home data and home entertainment networks, this paper proposes a Java-based middleware architecture supporting IEEE1394 and TCP/IP for digital home entertainment networks. The proposed architecture is able to provide interoperability between 1394-based services and TCP-based services, and accommodates multimedia service requirements in home network environments having various protocols and devices. In this architecture, we introduce a queueing mechanism to communicate with TCP/IP and IEEE1394, and it is fully compatible with Jini/spl trade/ network technology using TCP/IP.

Real-time carousel caching and monitoring in data broadcasting

This paper proposes a DSM-CC carousel caching and management architecture that can support both priority-based scheduling of monitoring threads and caching of carousel objects for a quick launch and download of Xlet. The carousel objects are broadcast cyclically by the transmission policy. Lack of carousel object reception may cause performance deterioration. The data broadcasting middleware should guarantee real-time characteristics such as the processing time in periodic monitoring threads to detect a change in information without a long latency time. Therefore this proposed architecture could improve the predictability of periodic monitoring section filter threads by using the managing the thread pool and scheduling periodic threads. To guarantee fast launch of the data broadcasting application, this paper also proposes the cache control mechanism of DSM-CC data/object carousel. This proposed architecture could accommodate data broadcasting middleware that uses DSM-CC object carousel mechanisms, such as ACAP, OCAP and MHP

Service recommendation system for big data analysis

The present paper allows to recommend data corresponding to a user requirement and an analysis algorithm which is able to analyze the data and let an analysis service selected by the user among a plurality of analysis services be automatically performed in a big data platform.

Design and implementation of home sensor service platform

Sensor networks for home sensing services can be configured in various complicate forms including conventional wired sensor devices as well as ZigBee devices. Consequently, sensor network middleware is positively necessary to support interoperability with heterogeneous types of sensor networks, and it also has to accommodate aggregate valuable information from sensor stream data. The sensor network middleware is connected to home network for supporting an intelligent home sensing and device control services. Consequently, the sensor network middleware has to guarantee interoperability with a home network middleware in order to support seamless service connectivity. This paper proposes a home sensing service platform architecture which can collect and aggregate various sensing values from various sensing devices in home. It can manage heterogeneous sensor network and provide interoperability with UPuP middleware as device service functionalities.

Realization of Fault-Tolerant Home Network Management Middleware with the TMO Structuring Approach and an Integration of Fault Detection and Reconfiguration Mechanisms

A middleware model named ROAFTS (Real-time Object-oriented Adaptive Fault Tolerance Support) has been evolving in the UCI DREAM Lab. over the past decade as the core of a reliable execution engine model for fault-tolerant (FT) real-time (RT) distributed computing (DC) applications. It is meant to be an integration of various mechanisms for fault detection and recovery in a form that meshes well with high-level RT DC object-/component- based programming, in particular, TMO (Time-triggered Message-triggered Object) programming. Using ROAFTS as a backbone and low-layer middleware, we developed a model and a skeleton implementation for FT DC middleware providing efficient FT execution services for component-based home network applications. Capabilities for management of home information processing devices, including health monitoring of home devices, reconfiguration of device connections, and servicing queries on device status, were added to ROAFTS. Those additions were first designed as a network of high-level RT DC components, i.e., TMOs. Then the TMO network was extended into an FT TMO network by applying the replication scheme called the PSTR (Primary-Shadow TMO Replication) scheme and incorporating a component responsible for reconfiguring TMO replicas. This extension of ROAFTS is called ROAFTS-HNE (Home Network Extension) and its architecture is presented here. In addition, during the development of the ROAFTS-HNE model, we formulated a new approach for applying the PSTR scheme to RT DC components supported by ROAFTS. Finally, evaluations of the recovery times of a prototype implementation have been conducted.

Design of the Autonomous Fault Processing Mechanism for Home Network

This paper proposes the design of the autonomous fault processing mechanism that can be used to solve abnormal faults in home network. In home network environments that consists of several kind of networks and devices, their unrevealed functionalities can cause non-instinct faults (combination or inferred situation). Usually many researches had tried to make a model-based fault processing mechanism. But, those works depended on the characteristics of the model for the specific environment. We focus on the process in which faults are induced and establish fault categories that can be caused in home network and the autonomous fault processing mechanism.

Design and Implementation of QoS Guaranteed Bridge System for High Speed PLC and UWB

This paper presents the software architecture of a high speed power line communication and ultra-wideband bridge system that can guarantee quality of service (QoS) for multimedia streaming in a home network. Due to recent wireless technology developments, ultra-wideband is becoming a viable solution for low cost personal area communication and home entertainment applications. Ultra-wideband has good features such as high bandwidth and low power consumption for mobile multimedia streaming, but it only supports communications over short distances due to its wave characteristics. Therefore, we have to use wired communication to extend the ultra-wideband coverage area. High speed PLC does not require any additional wiring in order to transmit a high bandwidth multimedia stream and provides sufficient bandwidth for handling a home entertainment network. Therefore a high speed PLC and ultra-wideband bridge system provides a multimedia streaming environment in the home without new wiring. The bridge system proposed can provide UPnP QoS device service and the traffic characteristic management function for end-to-end QoS for various multimedia services in the home.

A Java-based architecture supporting IEEE 1394 for home entertainment network

This paper proposes a Java-based middleware architecture supporting IEEE 1394 and TCP/IP for a digital home entertainment network. The proposed architecture is able to provide interoperability between a IEEE 1394-based service and a TCP-based service and accommodates the multimedia service requirements in a home network environment having various protocols and devices.

Hybrid Cache Architecture Using Big Data Analysis for Content Delivery Network

Hybrid cache architecture is the purpose of reducing network traffic in real time. For this, this paper suggest of multi-layer cache, collaborative cache and adaptive transformation using big-data analysis. Multi-layer cache compose of parent cache and edge cache. Parent cache has large scaled DB. Edge cache has small memory and high performance network ability. Each content stripes into edge cache. And each cache has a monitor agent for collecting cache status. This monitor agent sends log status to big data platform. Big data analysis engine analyses the information and determines reconfiguration of current cache layout using analysis result.

Hybrid Energy Management System for Community Energy System Facilities

The present paper allows to hybrid energy management for community energy system facilities. Energy management system is enabled cost savings through efficient use of energy. Active initiatives for energy management begin from the baseline of energy use. Given the vast amount of data and comparable systematized information gathered from greenhouse gas and energy IT systems, it is possible to reduce energy and improve efficiency by discovering many waste and inefficiencies that have never been found before.