Alternative Strategies for Improving the Fairness in and an Analytical Model of the DQDB Network
IEEE Transactions on Computers
Tutorial: Overview of ATM networks: functions and procedures
Computer Communications
Research: A community VOD system based on a dual bus architecture
Computer Communications
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A new distributed queue dual bus (DQDB)-based protocol for the transmission of still images is proposed. The image encoding scheme assumed here is hierarchical encoding. DQDB queue-arbitrated (QA) slots are used for the transmission of image information. Although the paper focuses on image transmission, the protocol can be used for any other type of traffic whose data is hierarchically organized or level-oriented. The proposed protocol also accommodates the possibility of session cancellation initiated by the image's recipient (destination node). Specifically, we develop a multiple request protocol with two request cancellation schemes, and a new pre-emptive reservation scheme. Finally, an analytical evaluation of our protocol using a processor sharing model is presented, and the average message delay, an important performance measure for this type of system, is obtained.