Near-term digital radio

The Near-term digital radio (NTDR) program provided a prototype mobile ad hoc network (MANET) radio system to the United States Army, starting in the 1990s.

The MANET protocols were provided by Bolt, Beranek and Newman; the radio hardware was supplied by ITT.

The NTDR protocols consist of two components: clustering and routing.

The NTDR routers also use a variant of Open Shortest Path First (OSPF) that is called Radio-OSPF (ROSPF).

Instead, OSPF adjacencies are created and destroyed as a function of MANET information that is distributed by the NTDR routers, both cluster heads and cluster members.

NTDR nodes being prepared for trials, February 1998.
Initial, large-scale trials of the NTDR network, February 1998.