Novel network test-bed simulators

The novel network testbed simulators are described: the request protocol simulator and the link protocol simulator. These testbeds are useful for evaluating delay-throughput performances of demand-assisted multiple-access (DAMA) protocols in mobile fading environments. The request protocol testbed simulates the multiple-access scheme for making connection requests in the DAMA protocol. The link protocol testbed simulates the link-layer protocol for data transmissions. In both testbeds a physical layer simulator is utilized to perform channel encoding and decoding, interleaving and deinterleaving, modulation and demodulation, and fading channel propagation. The authors present the architecture and some simulation results of both testbed simulators.<>