Results 61 to 70 of about 1,136,430 (371)

Determining design parameters for Ad-hoc wirless sensor networks. [PDF]

, 2003
This paper considers the design of wireless sensor networks in which a set of smart battery-powered sensor nodes cooperatively form an ad hoc communications network for monitoring and control applications. The paper examines ways of extending the life of
Blow, K. J., Gao, Q., Hoding, D. J., Marshall, I. W.   +3 more
core  

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Switching Algorithm with Prediction Strategy for Maximizing Lifetime in Wireless Sensor Network

International Journal of Distributed Sensor Networks, 2015
In wireless sensor networks (WSNs), the sensed data of each node are usually gathered through a data collection tree rooted at the sink node. The data collection tree generated randomly usually does not have the longest network lifetime.
Chuan-Jun Yi, Geng Yang, Hua Dai, Liang Liu, Ning Li   +4 more
doaj   +1 more source

MODLEACH: A Variant of LEACH for WSNs

, 2013
Wireless sensor networks are appearing as an emerging need for mankind. Though, Such networks are still in research phase however, they have high potential to be applied in almost every field of life.
Javaid, N., Mahmood, D., Mahmood, S., Memon, A. M., Qureshi, S., Zaman, T.   +5 more
core   +1 more source

Blockchain Trust Model for Malicious Node Detection in Wireless Sensor Networks

IEEE Access, 2019
The Internet of Things (IoT) has been widely used because of its high efficiency and real-time collaboration. A wireless sensor network is the core technology to support the operation of the IoT, and the security problem is becoming more and more serious.
Wei She, Qi Liu, Zhao Tian, Jian-Sen Chen, Bo Wang, Wei Liu   +5 more
semanticscholar   +1 more source

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

Advanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To, Jiachen Du, Cyril Decroze, Laure Huitema, Aurelian Crunteanu, Hang Wong   +5 more
wiley   +1 more source

Distributed Face Recognition in Wireless Sensor Networks

International Journal of Distributed Sensor Networks, 2014
As one of the most successful applications of image analysis and understanding, face recognition has recently received significant attention, especially during the past few years.
Qiaomin Lin, Jinwen Yang, Bin Zhang, Ruchuan Wang, Ning Ye, Mengkui Yan   +5 more
doaj   +1 more source

Cognitive test-bed for wireless sensor networks [PDF]

, 2014
Cognitive Wireless Sensor Networks are an emerging technology with a vast potential to avoid traditional wireless problems such as reliability, interferences and spectrum scarcity in Wireless Sensor Networks.
Araujo Pinto, Álvaro, Blesa Martínez, Javier, Domingo Rebollo, Juan, Jara Luengos, Guillermo, Romero Perales, Elena   +4 more
core   +1 more source

Energy-Harvesting Wireless Sensor Networks (EH-WSNs)

ACM Trans. Sens. Networks, 2018
Wireless Sensor Networks (WSNs) are crucial in supporting continuous environmental monitoring, where sensor nodes are deployed and must remain operational to collect and transfer data from the environment to a base-station.
Kofi Sarpong Adu-Manu, Nadir H. Adam, C. Tapparello, H. Ayatollahi, W. Heinzelman   +4 more
semanticscholar   +1 more source

Wireless battery-free body sensor networks using near-field-enabled clothing

Nature Communications, 2020
Networks of sensors placed on the skin can provide continuous measurement of human physiological signals for applications in clinical diagnostics, athletics and human-machine interfaces.
Rongzhou Lin, Han-Joon Kim, Sippanat Achavananthadith, Selman A. Kurt, Shawn C. C. Tan, Haicheng Yao, Benjamin C. K. Tee, Jason K. W. Lee, J. S. Ho   +8 more
semanticscholar   +1 more source