Analyzing effect of spreading and absorption losses on performance of nano-network operating at terahertz frequency band

Saniya Parveez () and Sindhu Hak Gupta ()
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Saniya Parveez: Amity University
Sindhu Hak Gupta: Amity University

International Journal of System Assurance Engineering and Management, 2024, vol. 15, issue 6, No 41, 2529-2540

Abstract: Abstract Advancement in miniaturization of electronics devices and nano sensors has led to sophistication of Internet of things (IoT) devices. The improved fabrication technology of recent time makes it feasible for nano sensors to be positioned within the human body, and the terahertz (THz) band is seen as compatible frequency band for in vivo applications within millimeter scale. This paper presents the investigative analysis for nano communication operating at the terahertz frequency band. Link quality and capacity of in vivo comm has been examined using pathloss model where the losses due to absorption and spreading are generalized along with additional permittivity for a considered human model, precisely for skin, water, plasma, RBCs, and whole blood in wireless body area network (WBAN). The variations in link quality matrices such as bit error rate (BER), signal to noise ratio (SNR) and channel capacity have been obtained as these parameters are affected by change in path loss. For the considered scenario, maximum path loss has been observed in plasma with least in the skin. This change in pathloss affects the other link parameters in similar manner. Therefore, the complete analysis of different body components to obtain SNR, BER, and channel capacity relaying on absorption loss plus spreading loss has been realized. The channel capacity is observed least in plasma, increasing of 2.5% in whole blood, 6.5% in water, 6.7% in RBCs, and maximum of 12.5% in skin. Similarly, the SNR is least in plasma, and maximum in skin. Whereas the BER has been noticed maximum in plasma, and least in skin.

Keywords: In vivo communications; Nano-devices; Pathloss; Terahertz band; Wireless body area network (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s13198-024-02274-2

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