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This article describes a method to fully connect the nodes in a TDMA (time division multiple access) satellite network, based on the use of the broadcast port of TDMA satellite communication controllers.
English (United States)
This text was extracted from a PDF file.
This is the abbreviated version, containing approximately
63% of the total text.
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Use of Broadcast Ports in TDMA Satellite Networks
This article describes a method to fully connect the nodes in a TDMA (time
division multiple access) satellite network, based on the use of the broadcast port
of TDMA satellite communication controllers.
A network of N nodes, fully connected via point-to-point links, requires
L=2N(N-1) one-way data ports.
It is proposed to install in each node one broadcast transmit port and N-1
receive ports. A broadcast port is a one-way transmit data port, to which one
one-way receive data port is associated in each of the N-1 other nodes.
Whatever data is sent through this transmit port is received by all associated
The use of broadcast ports to fully connect N nodes of a TDMA satellite
network has two advantages when compared to dedicated point-to-point links:
1. A smaller number of ports is required, both on the communication
controller (Data Transmission Equipment (DTE)) and on the satellite access
equipment (Data Communication Equipment (DCE)). A network using the
broadcast port requires: N transmit and N(N 1) receive ports, i.e., a total of N/2/
one-way ports, to be compared with L above. The economy of the broadcast
solution approaches 50% in networks with many nodes.
2. A smaller space segment (global data rate) is required, because the
multiplexing of several data flows into one channel provides dynamic bandwidth
allocation between these flows.
When the nodes are connected via point-to-point links, the b...