Multiple access communication network with dynamic access contro

Details Multiple access communication network with dynamic access contro Multiple access communication network with dynamic access contro

1997-02-25

2000-06-20

Kozou, Hassan

Multiplex communications

Communication over free space

Message addressed to multiple destinations

370445, H04L 700

Patent

active

060785683

ABSTRACT:
Dynamic access control for communicating a data packet over a multiple access communication network with a forward channel and a multiple access reverse channel which maintains utilization even when the arrival rate of packets for transmission exceeds the departure rate is provided by a broadcast dynamic access control parameter which regulates access to the multiple access reverse channel. A subscriber device wishing to transmit a data packet on the reverse channel receives the broadcast dynamic access control parameter from a base station on the network, generates an access control limit value and only attempts to transmit the data packet if the access control limit value satisfies the dynamic access control parameter. The dynamic access control parameter is updated by the base station based on a determined success rate and collision rate for transmissions on the reverse channel. The change rate for the dynamic access control parameter is based upon the determined success rate and a target success rate and the change direction is based on the determined collision rate and a target collision rate. Each reverse channel has an associated dynamic access control parameter and congested ones of the reverse channels are identified based on the value of the respective dynamic access control parameter and routing of data packets on the network is allocated to reduce demand on congested reverse channels.

REFERENCES:
patent: 4817087 (1989-03-01), Yamada
patent: 5008883 (1991-04-01), Eizenhofer et al.
patent: 5537395 (1996-07-01), Alles et al.
patent: 5570367 (1996-10-01), Ayanoglu et al.
patent: 5604869 (1997-02-01), Mincher et al.
patent: 5701302 (1997-12-01), Geiger
patent: 5740167 (1998-04-01), Taketsugu et al.

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