Terahertz Communication in Nanonetworks
Summary
Terahertz communication in nanonetworks exploits the electromagnetic spectrum between 0.1 and 10 THz to enable wireless connectivity among nanoscale devices. At these frequencies, nano-antennas can transmit and receive data with high bandwidth and low latency, supporting applications from targeted drug delivery and in vivo sensing to environmental monitoring. However, the unique propagation characteristics of the terahertz band—chiefly severe path loss, molecular absorption and limited transmission range—pose challenges for network design and energy management. Effective schemes often combine multi-hop routing, energy-efficient modulation and adaptive sub-band allocation to overcome these hurdles. Recent advances in nano-antenna engineering and energy-harvesting techniques have extended communication distances while preserving device lifetime. The integration of cooperative relaying and intelligent resource allocation has further enhanced link reliability, paving the way for practical deployments in healthcare diagnostics, industrial inspection and security screening. As the demand for miniaturised, high-speed networks grows, terahertz nanocommunication is emerging as a vital component of the broader Internet of Nano Things, promising transformative impacts on science, medicine and engineering.
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Terahertz Communication in Nanonetworks publication trend
The graph below shows the total number of articles in terahertz communication in nanonetworks across all publications each year (not limited to Nature Index journals).
Technical terms
Terahertz band: The portion of the electromagnetic spectrum between 0.1 THz and 10 THz, characterised by high bandwidth and significant molecular absorption.
Nanonetwork: A wireless network of nanoscale devices that communicate via electromagnetic waves, often in the terahertz band.
Path loss: The attenuation of signal power as it propagates through a medium, exacerbated at terahertz frequencies by spreading and absorption.
Molecular absorption: The loss of electromagnetic energy due to resonant interactions with molecules in the transmission medium, notably water vapour.
Multi-hop routing: A network strategy where data is forwarded through intermediate nodes to extend range and reduce per-link energy requirements.
References
- Joint Optimization of Routing, Bandwidth, and Sub-Band Allocation in Energy-Efficient THz Nano-Networks. IEEE Open Journal of the Communications Society (2024).
- An Energy Conserving Routing Scheme for Wireless Body Sensor Nanonetwork Communication. IEEE Access (2018).
- Cooperative In-Vivo Nano-Network Communication at Terahertz Frequencies. IEEE Access (2017).
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