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This paper designs and implements the sensory effect Aggregator with functions to get real-sense data used in the Realsense 4D Broadcasting Service interworking with heterogeneous multimedia devices. For considering broadcasting service aspects, we design the aggregator structure consisted of four parts: the sensing data collecting module, the sensing data handling module, the communication module with the broadcasting system and the feedback processing module. With the aggregator, we develop the real-sense broadcasting system to provide users real-sense effects with heterogeneous multimedia devices.

Recently, plenty of voice quality measuring devices of VoIP(Voice over Internet Protocol) service is developed to support high quality VoIP service for communication. However, the existing voice quality measuring devices select the unique measurement method, which uses PESQ(Perceptual Evaluation of Speech Quality) or R-factor only. However, the each voice quality measurement method differs from its usage and assumed range, which leads to the slightly different results at the same testing area for voice services. At the actual VoIP service business and related regulatory organizations, they request to use the above two types of algorithm at the same time for measuring voice quality. However, the development expenses are very high to use the above two types of algorithm at the same time for measuring voice quality due to additional resources and subsidiary devices. VoIP business and regulatory agencies also request the hardware specification of the voice quality measurement device is similar to that of VoIP service user terminal, considering VoIP service supply at the wireless mobile internet such as WiBro(Wireless Broadband). In this paper, we present the voice quality measurement method by using of the above two algorithms at the one physical measurement device at the same time for more accurate and reliable VoIP voice quality measurement. In addition, we introduce the development method of the voice quality measurement device with relatively low cost.

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To provide high-level quality of network service and prevent contract dissension, a Service Level Agreement (SLA) is an essential key factor in telecommunication industry. While most network service providers normally offer an SLA communicating with legacy monitoring or reporting systems, it is needed to suggest new architecture of an SLA system for accommodating legacy network management systems without considering operating environment of each system. To guarantee level of network service, it is important to gather raw data from legacy systems or other Operating Support Systems and exactly manage it in time. In this paper, we suggest architecture of an integrated SLA system that is operated on the web-based communicating technology with legacy systems, i.e. Web-based Service Level Agreement Monitoring and Reporting (WSMR) system. The proposed architecture offers the way to gather raw data and process it using web-based communicating technology.

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The purpose of Wireless LAN service is to provide mobile intemet environment for people who want to have wireless intemet using mohile devices. W A N network consists of devices such as APs, routers, switches which are located in wide area, and they must be managed efficiently. So, we develop wireless LAN network management system, which is WLAN-NMS. It manages information of network elements and monitors error status of each device on real-time. In this paper, we design and implement WAN-NMS can manage maximum 50,OM) network elements and shows it's operation and performance.

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