A Flexible Medium Access Control Protocol for Dense Terahertz Nanonetworks

The race for the miniaturization of electromechanical equipments has seen tremendous progress in recent years. In this context, nano wireless networks composed of a large number of tiny equipments concentrated in a reduced area find multiple applications in the field of multi-core processors, programmable matter or nano-sensors networks. In order to support wireless communication between numerous millimeter-scale nodes, the radio access management protocol, a Time-Spread On-Off Keying (TS-OOK), has been proposed to operate under high density, scarce energy and miniaturized network node constraints. Despite of all the advantages provided by TS-OOK protocol, it suffers of two main drawbacks: an unbalance treatment of the active communications and a lack of adaptability. We propose to correct these defaults by adding Adaptive Symbol Rate Hopping mechanism to TS-OOK giving birth to a new protocol called Adaptive Symbol Rate Hopping TS-OOK (ASRH-TSOOK), which allows to better share the system bandwidth and to automatically readjust the radio allocation to the system load. Our protocol is based on a solid probabilistic formulation providing an accurate and a slight procedure to dynamically adjust the communication symbol rate according to the estimated system load.