Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing – Computer-to-computer data transfer regulating
Patent
1998-02-27
1999-12-21
Meky, Moustafa M.
Electrical computers and digital processing systems: multicomput
Computer-to-computer protocol implementing
Computer-to-computer data transfer regulating
370229, G06F 1300
Patent
active
060062711
ABSTRACT:
A complete collision avoidance contention resolution protocol is provided for networks with stations communicating over a shared access communication medium. The protocol is used where a physical layer connected to the communication medium uses a carrier modulation scheme with multiple frequencies. Stations on the network that desire access to the communication medium use a carrier modulation scheme with multiple frequencies. Stations that desire access simultaneously transmit a single frequency selected at random from a set of physical layer frequencies during an open-contention-interval. At the same time, the stations listen to a combined frequency signal and analyzes it for frequency content. If one station whose own frequency matches the highest frequency signal in the combined signal, the station gains access to a communication medium. If more than one station have the same highest frequency signal in the combined signal, no station gains access to the medium. The stations with the highest frequency signal initiate a restricted-contention-interval. The probability of successful contention resolution increases very rapidly using the restricted-contention-interval. When only one station has the highest frequency signal, it gains access to the medium. By resolving contention prior to providing access to any station, collisions of data are completely eliminated. By partitioning the set of frequencies in contiguous ranges, multiple priority classes can be used with the contention resolution method.
REFERENCES:
patent: 4574378 (1986-03-01), Kobayashi
patent: 5583872 (1996-12-01), Albrecht et al.
patent: 5657326 (1997-08-01), Burns et al.
Borella Mike
Grabelsky David
Grabiec Jacek
Sidhu Ikhlaq
3Com Corporation
Meky Moustafa M.
LandOfFree
Method and protocol for complete collision avoidance contention does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and protocol for complete collision avoidance contention , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and protocol for complete collision avoidance contention will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-516466