Medium Access Control Protocols for Terahertz Communication

This thesis proposes and studies a Medium Access Control (MAC) protocol for networks of tags deployed over an industrial machine using THz communications. Despite the great advantages of these frequencies, there are drawbacks that cannot be ignored, such as propagation delays that, even at small distances, are of the same order of magnitude as packet transmission times. For this reason, the mathematical models developed for Contention-Free and Contention-Based protocols take into account the propagation delay. The main focus of this thesis is on the CSMA/CA protocol, which introduces channel sensing to reduce collisions and increase performance. The performance of the protocol are compared with two benchmarks, based on Polling and Aloha, considering an industrial machine scenario and accounting for physical and MAC layers features.