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Adaptive Slotted Bus Metropolitan Area Network Protocol Disclosure Number: IPCOM000036776D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-29

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Dono, NR [+details]


The large distances between stations on a Metropolitan Area Network translate into large propagation delays (.25 msec) between stations. A ring topology under these conditions would not provide an efficient approach because of the long times required to resolve collisions or to circulate a token. On the other hand a meshed network may prove too expensive to provide each station with multiple receivers and transmitters for all links. A star topology with an adaptive time- slotted bus protocol provides an attractive alternative (Fig. 1). All stations which transmit on a common wavelength avoid collisions at the hub through the adaptive slot protocol. (Image Omitted).