Browsing by Author "Chen, Sujen"

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    Optimal Routing in Mixed Media Networks with Integrated Voice and Data Traffic
    (1993) Chen, Sujen; Baras, John S.; ISR; CSHCN
    In this paper, we consider a large mixed-media network which consists of a low-delay terrestrial sub-network and a high- bandwidth satellite sub-network. both voice and data traffic are transmitted and routed through the same network. We show how to route both traffic via ground and/or satellite links by means of static, deterministic procedures. Two common voice/data integrated protocols such as fixed boundary and movable boundary schemes for the satellite channel are investigated, and the performance of both schemes is evaluated. The optimal splitting ratios for voice and data at the SIMPs (satellite Interface Message Processors) are found using a powerful numerical optimization package (FSQP).
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    Structure of a Flexible Manufacturing Protocol for Design and Control of a Vertical Machining Cell
    (1988) Chen, Sujen; Anand, D.; ISR
    The thesis presented here develops the Flexible Manufacturing Protocol (FMP) for use in CIM (Computer Integrated Manufacturing). The philosophy of the FMP is discussed, as well as the FMP structure. A vertical machining cell was built for automated machining of prismatic parts based on FMP concepts. This cell uses two computers to simulate the responses of cell level components. The system hierarchy and software structure are described in detail as well as the operation schemes. The interfacing/integration problems encountered during the development of the cell are also discussed. An example of how the FMP works with the vertical machining cell is included. The successful demonstration of the FMP-based system capability further reflects the need for FMP and how it is going to benefit the CIM industry.
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    Structure of a Flexible Manufacturing Protocol for Design and Control of a Vertical Machining Cell.
    (1988) Chen, Sujen; ISR
    The thesis presented here develops the Flexible Manufacturing Protocol (FMP) for use in CIM (Computer-Integrated Manufacturing). The philosophy of the FMP is discussed, as well as the FMP structure. A vertical machining cell was built for automated machining of prismatic parts based on FMP concepts. This cell uses two computers to simulate the responses of cell level components. The system hierarchy and software structure are described in detail as well as the operation schemes. The interfacing/integration problems encountered during the development of the cell are also discussed. An example of how the FMP works with the vertical machining cell is included. The successful demonstration of the FMP-based system capability further reflects the need for FMP and how it is going to benefit the CIM industry.