Conflict resolution by retransmission delay on shared communicat

Details Conflict resolution by retransmission delay on shared communicat Conflict resolution by retransmission delay on shared communicat

1979-06-07

1980-11-18

Stewart, David L.

Multiplex communications

Wide area network

Packet switching

370 85, H04J 600

Patent

active

042349524

ABSTRACT:
An apparatus for enabling communications between two or more transceivers when a plurality of transceivers share a common communication medium or channel. The geographical locations of the transceivers are such that the propagation delay between any source to destination pair is relatively a small function of the transmission duration or packet time. In order to prevent two or more transceivers from simultaneously transmitting over the common medium, each transceiver requires a control apparatus. The simultaneous transmission by two or more transceivers is not very likely due to different start times. However, if such start times differ by less than the propagation delay between the transceivers then interference will result. Hence the control apparatus includes a means of resolving such contention interferences by providing a retransmission delay to govern the transmission.

REFERENCES:
patent: 3863220 (1975-01-01), Osawa
patent: 3978451 (1976-08-01), Ho
patent: 4013959 (1977-03-01), Patterson
patent: 4063220 (1977-12-01), Metcalfe
patent: 4161786 (1979-07-01), Hopkins

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