On the Nature of Energy-Feasible Wireless Nanosensor Networks

被引:28
作者
Canovas-Carrasco, Sebastian [1 ]
Garcia-Sanchez, Antonio-Javier [1 ]
Garcia-Haro, Joan [1 ]
机构
[1] Tech Univ Cartagena, Dept Informat & Commun Technol, Cartagena 30202, Spain
关键词
energy harvesting; nanodevice; piezoelectric generator; terahertz communications; wireless nanosensor networks; COMMUNICATION; PROPAGATION; PROTOCOL; SCHEME; DESIGN;
D O I
10.3390/s18051356
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Electromagnetic nanocommunications, understood as the communication between electronic nanoscale devices through electromagnetic waves in the terahertz band, has attracted increasing attention in recent years. In this regard, several solutions have already been proposed. However, many of them do not sufficiently capture the significance of the limitations in nanodevice energy-gathering and storing capacity. In this paper, we address key factors affecting the energy consumption of nanodevices, highlighting the effect of the communication scheme employed. Then, we also examine how nanodevices are powered, focusing on the main parameters governing the powering nanosystem. Different mathematical expressions are derived to analyze the impact of these parameters on its performance. Based on these expressions, the functionality of a nanogenerator is evaluated to gain insight into the conditions under which a wireless nanosensor network (WNSN) is viable from the energetic point of view. The results reveal that a micrometer-sized piezoelectric system in high-lossy environments (exceeding 100 dB/mm) becomes inoperative for transmission distances over 1.5 mm by its inability to harvest and store the amount of energy required to overcome the path loss.
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页数:13
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