• Journal of KIISE:Information Networking
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• v.30 no.4
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• pp.494-503
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• 2003

The IEEE 1394 High Speed Serial Bus is a versatile, high-performance, and low-cost method of promoting interoperability between all types of A/V and computing devices. IEEE 1394 provides two transfer modes: asynchronous mode for best effort service and isochronous mode for best effort service with bandwidth reservation. This paper shows the bus performance and compared the transfer odes first at the link level and then at the application level. For the application level performance, we analyze the bus systems with fixed and adaptive interfaces, applied between the upper layer and the 1394 layer, using polling systems. Also we verifies the analysis models with simulation studies. Based on our analysis, we conclude that the adaptive interface reduces the bus access time and so increases the bus utilization.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.1
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• pp.47-52
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• 2017

This study is BIT(: Bus Information Terminal) features that take advantage of KEPCO eIoT(: energy Internet of Thing) platform, and it's Network configuration is composed of display terminal device, gateway, platform, and the service server. The key features are parts for processing protocol data between the gateway and the device using LoRa(: Long Range) technology, Intelligent applications and SIP(: Session Initiation Protocol) data handling connected to the Taxi reservation system. And the resource tree provided BIT for the service, which commonly used in the application server and the device.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.12 no.6
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• pp.599-606
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• 1987

Giving a high degree of intelligence to the electronic equipments such as communication system is the general trend of nowadays. Therefore the multi-processor will be required in a single system and the switch gives an example of it. In this paper, "Reserved Bus" is proposed as the interprocessor communication method applicable to such system which has multi-processor in the limited space. The performance of proposed method is also analyzed. analyzed.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.12
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• pp.2319-2326
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• 2007

Recently, various systems are being developed for efficiently assignment and management of such resources as seats of airplane, train, bus, theater, and library. If it occurs the exceed demand for the limited seat resource, the system has much difficulty for the seat resource management and assignment efficiently. The existed allocation and management methods were processed using the centralization management of the limited seat resource. But these methods cannot consider the preference of each user, and these not support the fairness of usage for each person. Accordingly, we design and implement the seat assignment system based on the customer-driven for the seat management in the reading room of library, customer selects directly for the fairness of seat.