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Robin : an experimental protocol for asynchronous serial lines

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https://ir.library.oregonstate.edu/concern/graduate_projects/qv33s502q

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  • Computer networking research has been going on for almost twenty years; however, most of the protocols concern high and low speed synchronous transmission. All synchronous communication needs special transmission lines. The TCP/IP (Transmission Control Protocol/Internet Protocol) protocols, Ethernet, X.25, X windows system are very successful protocols. Less work has been done on low speed asynchronous serial communication. Asynchronous communication software can be applied to the telephone system by using a modem to transform digital signals into analog signals. Telephone (voice grade) lines are established world wide; therefore, any improvement in asynchronous protocols affects our entire society. Currently, software developers rely on improved hardware, like the Integrated Services Data Network (ISDN), a high bandwidth communication channel for voice, data, image, etc. Switching to this technology is a major change for telephone companies, and won't be in common use for some years. There are a number of commercial software products providing serial communication such as: xmodem, Kennit, procomm; etc. However, they are slow because they do not fully utilize the transmission line. Research seeks to improve telephone data transmission by making efficient use of limited communication capabilities by giving high priority to interactive activities while simultaneously supporting less critical requests. An experimental protocol has been designed which can transfer files in background, and remote log-in to a hose machine at the same time.
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