Method for controlling the scheduling of multiple access to comm

Details Method for controlling the scheduling of multiple access to comm Method for controlling the scheduling of multiple access to comm

1991-03-28

1992-08-25

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 852, H04J 316

Patent

active

051425335

ABSTRACT:
A method of providing a communication unit (10) access to a shared communication resource. In the communication unit, a clock (123) is maintained, and the unit detects the time when an inhibit period on the shared communication resource begins, and the time at which it concludes. When access to the shared communication resource is desired, the unit attempts to access the communication resource based on the time at which access was desired, as well as the times at which a detected inhibit condition began and concluded. A virtual time clock runs only during non-inhibit periods. Access to the communication resource is then based on when the virtual time clock equals the desired access time.

REFERENCES:
patent: 4774707 (1988-09-01), Raychaudhuri
patent: 4888765 (1989-12-01), Dyke
"Packet Reservation Multiple Access for Local Wireless Communications", Goodman et al., IEEE publication, pp. 701-706 (1988).
Multiple Access Protocols for Data Communications via VSAT Networks, Wolejsza et al., IEEE Communications Magazine, pp. 30-39 (1987).
Performance Analysis of Virtual Time CSMA, Meditch et al., IEEE Publication, pp. 242-251 (1986).
Virtual Time CSMA: Why Two Clocks Are Better Than One, Molle et al., IEEE Transactions on Communications, pp. 919-933 (Sep. 1985).
Multiaccess Protocols in Packet Communication Systems, Tobagi, IEEE Transactions On Communications, pp. 468-488 (Apr. 1980).
On Protocols For Satellite Packet Switching, Lam, IEEE Publication, pp. 58.6.1-58.6.6 (1979).
An Analysis of the Reservation-ALOHA Protocol for Satellite Packet Switching, Lam, IEEE Publication, pp. 27.3.1-27.3.5 (1978).

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