Poll Actuated Multiple Access Technique for Broadgathering Systems
Original Publication Date: 1987-Jun-01
Included in the Prior Art Database: 2005-Feb-01
A communications system design is proposed for supporting very large numbers of devices whose transmission requirements focus predominantly on a central reception facility. Each-to-every logical connectivity can be provided by store-and-forward switching from the central site. The system is composed of the interconnection of Poll Actuated Multiple Access (PAMA) Network Segments, which operate as independent local subnetworks and may also serve as store-and-forward elements for traffic from other subnetworks. The multiple access technique employed for each segment consists essentially of a poll actuated TDMA mechanism incorporating a dynamically variable, load-determined frame duration. It permits a great deal of flexibility while remaining relatively simple.