Stateless Linear-path Routing for 3D Nanonetworks

Efficient data routing is a critical enabler of future nanonet-working applications. Such nano-routing schemes must account for highly lossy wireless channel conditions, non-unique identifiers and limited processing capabilities at the nanon-odes comprising the network. The present study proposes a novel addressing and routing scheme fit for 3D nanonetworks. Initially, a geo-addressing process is applied within the network. Subsequently, it is shown that every node can deduce whether it is located on the linear path connecting a communicating node-pair. This deduction is made using integer calculations, node-local information and in a stateless manner, minimizing the computational and storage overhead of the proposed scheme. Most importantly, the nodes can regulate the width of the linear path, thus trading energy efficiency (redundant transmissions) for increased path diversity. This trait can enable future adaptive routing schemes. Extensive evaluation via simulations highlights the advantages of the novel scheme over related approaches.