Testbed architecture

The DES-Nodes are deployed on our campus in a planned but not uniform manner. Currently, a prototype network, spanning three floors, is set up in our institute building. Adjacent buildings will be covered in future extensions. The detailed placement is shown on the page Node placement.

As depicted in the figure above, our general system setup is a three tier based architecture. The stationary mesh routers build the core backbone network and represent tier 1. Tier 2 comprises the mesh clients connected to the mesh backbone. These clients are regarded as mobile and may offer a routing service, depending on the experiment. Tier 3 encompasses the sensor nodes which are connected by wire to a mesh router or mesh client. A subset of these nodes may also be operated independently of the mesh routers in order to create a mobile and dynamic topology.