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Nanoscale wireless networks are expected to revolutionize a variety ofdomains, with significant advances conceivable in in-body healthcare. Inhealthcare, these nanonetworks will consist of energy-harvesting nanodevicespassively flowing through the bloodstream, taking actions at certain locations,and communicating results to more powerful Body Area Network (BAN) nodes.Assuming such a setup and electromagnetic nanocommunication in the Terahertz(THz) frequencies, we propose a network architecture that can supportfine-grained localization of the energy-harvesting in-body nanonodes, as wellas their two-way communication with the outside world. The main novelties ofour proposal lie in the introduction of location-aware and Wake-up Radio(WuR)-based wireless nanocommunication paradigms, as well as Software-DefinedMetamaterials (SDMs), to THz-operating energy-harvesting in-body nanonetworks.We argue that, on a high level, the proposed architecture can handle (andactually benefits from) a large number of nanonodes, while simultaneouslydealing with a short range of THz in-body propagation and highly constrainednanonodes.

Toward Location-aware In-body Terahertz Nanonetworks with Energy Harvesting