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A total QoS solution including dynamic call admission control scheme and bandwidth allocation algorithm is proposed for IEEE 802.16e mobile WiMAX. In this paper, the relationship between the channel utilization, the dropping and blocking probability versus traffic loads are investigated. The proposed WiMAX scheme supports voice, data and multimedia services with differentiated QoS.
An active RFID system for railway vehicle identification and position has been designed and developed. Testing was conducted in the Light-Rail System in Hong Kong and the performance was found to be robust. The system caters for passenger information application, and can be applied to various applications including Maintenance System, Vehicles Location/Positioning System etc.
ZigBee is the latest wireless technology which provides three lowest solutions, low data rate, low power consumption and low cost. One of the ultimate goals of ZigBee is to provide a energy saving solution. Low power consumption and power management are important characteristics of ZigBee. To explore the concept of energy saving, an integrated ZigBee automation system (ZAS) for lighting automation...
In this paper, a QoS solution incorporating a dynamic call admission control scheme and a bandwidth allocation algorithm is proposed for WIMAX mobile application. The relationship between the channel utilization, the dropping and blocking probability versus traffic loads has been investigated. The proposed solution supports voice, data and multimedia services with differentiated QoS.
A system providing Internet remote access of residential services has been developed. The system allows users to access their residential services, e.g. appliance control, under the constraint that the residential gateways (residential clients) are connected to the Internet through an unpredictable or an intranet IP address. Security schemes are provided for the connections between residential clients...
A Distributed Process Mining System (DPMS) is discussed in this paper which aims to optimize the process in order to offer shorter production time, easier quality defect identification and higher customer satisfaction. This proposed system is equipped with the idea of "distributed process mining" discovering the hidden relationships between each working decision in distributed manner. This...
Although digital rights management (DRM) has gained increasing importance in today's digital services and electronic commerce, it is not addressed explicitly in the Internet Open Trading Protocol (IOTP) specification. In this paper, we propose a digital rights management system (RMS) that is integrated into IOTP for electronic commerce applications and services. We introduce a rights insertion phase...
The optimum dimensions of a single V-groove guide for a frequency band were found to be more critical than that at a fixed frequency. The dimensions of this guide were optimised at X-band (8?12.4 GHz).
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