Multiaccess carrier sensing network communication protocol with

Details Multiaccess carrier sensing network communication protocol with Multiaccess carrier sensing network communication protocol with

1990-12-03

1994-06-07

Safourek, Benedict V.

Multiplex communications

Wide area network

Packet switching

370 856, H04J 302

Patent

active

053196414

ABSTRACT:
An improved network for communication of message packets. The network of the present invention implements an improved collision avoidance, detection and backoff system for communication on a media between nodes. The apparatus calculates a time period P after detecting the media is idle using a formula F which is a function of a pseudo-random delay factor T. If the media remains idle during the time period P, the device may transmit a message. The apparatus further has the ability to assign messages as being either priority or non-priority messages. Priority messages may be transmitted during priority message slots preassigned to transmitting nodes. Non-priority message contend for the media during a period of time following the period set for transmission of priority messages.

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