Title : MAC layer protocols for in-vivo wireless nanosensor networks using terahertz signals: A survey
Abstract:
Terahertz-based in-vivo Wireless NanoSensor Networks (i-WNSNs) represent a groundbreaking communication paradigm for non-invasive medical diagnostics and therapeutics. These networks rely on wireless links to enable cooperation among nanosensor nodes, connecting multiple nanodevices to form a cohesive system. Owing to challenges such as energy constraints (due to the limited size of the battery) and the nature of the channel (biological medium), developing energy-efficient and reliable channel access protocols is critical to ensuring interference- and collision-free message exchanges. Traditional MAC layer protocols designed for Wireless Sensor Networks (WSNs) are unsuitable for i-WNSNs due to the unique channel conditions encountered in these environments. This article begins by outlining the key i-WNSNs characteristics essential for designing MAC layer protocols. It then reviews several MAC protocols proposed for in-body/intra-body wireless nanosensor networks (i-WNSNs), highlighting their respective strengths and limitations. Finally, the article identifies open research challenges related to MAC layer design in this context.
The presenting author is a PhD scholar at SRM University AP. She holds a master’s degree in software engineering from HiLCoE School of Computer Science and Technology, awarded in 2019, and a Bachelor's degree in Computer Science from Arbaminch University, completed in 2007. His academic and research interests lie in MAC Layer Protocols for in-Vivo Wireless Nanosensor Networks Using Terahertz Signals.
