Results 61 to 70 of about 365,213 (282)

Cognitive radio application for vehicular ad hoc networks (VANETS) [PDF]

Tehnika, 2016
This paper presents the application of cognitive radio technology in vehicular ad-hoc networks aimed to improve the communications between vehicles themselves as well as between vehicles and roadside infrastructure.
Miladić Suzana D., Marković Goran Z., Stojanović Mirjana D.   +2 more
doaj   +1 more source

Adaptive OFDM System Design For Cognitive Radio [PDF]

, 2006
Recently, Cognitive Radio has been proposed as a promising technology to improve spectrum utilization. A highly flexible OFDM system is considered to be a good candidate for the Cognitive Radio baseband processing where individual carriers can be ...
Kokkeler, André B.J., Smit, Gerard J.M., Zhang, Qiwei   +2 more
core   +3 more sources

Label‐Free SERS Fingerprinting of Neuroprotein Conformational Dynamics in Human Saliva

Advanced Materials, EarlyView.
Galvanic molecular entrapment (GME) is a label‐free method for detecting and quantifying neuroprotein conformational states. This technique enables direct surface binding and in situ hotspot generation around molecules, effectively overcoming challenges related to target localization and mismatched hotspot geometries.
Muhammad Shalahuddin Al Ja'farawy, Jun‐Yeong Yang, Chaewon Mun, Seunghun Lee, Chul Bum Cho, Yoo Hyun Um, Min‐Young Lee, Sung‐Gyu Park, Dong‐Ho Kim, Seung Ho Yang, Ho Sang Jung   +10 more
wiley   +1 more source

Collaborative Spectrum Sensing from Sparse Observations in Cognitive Radio Networks

, 2010
Spectrum sensing, which aims at detecting spectrum holes, is the precondition for the implementation of cognitive radio (CR). Collaborative spectrum sensing among the cognitive radio nodes is expected to improve the ability of checking complete spectrum ...
Han, Zhu, Hossain, Ekram, Li, Husheng, Meng, Jia, Yin, Wotao   +4 more
core   +1 more source

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

Assessing random forest performance in low resource speech emotion recognition

Scientific Reports
In human-computer interaction (HCI), speech emotion recognition (SER) is a pivotal technology that enables machines to decipher human emotions. This study delves into the efficacy of employing a random forest (RF) classifier for SER within Urdu speech, a
Muhammad Adeel, Zhi-Yong Tao, Shu-Ya Jin, Chuan-Jie Guo, Mohammed Alsuhaibani   +4 more
doaj   +1 more source

A Sub-Channel Spatial Homogeneity-Based Channel Estimation Method for Underwater Optical Densely Arrayed MIMO Systems

Journal of Marine Science and Engineering
The limited surface area and structural constraints of small underwater communication devices necessitate a dense placement of transmitting and receiving array elements in optical multiple-input multiple-output (MIMO) systems. The compact layout leads to
Guojin Peng, Hongbin Qiu, Yanlong Li, Junru Wang   +3 more
doaj   +1 more source

Adaptive Modulation in Multi-user Cognitive Radio Networks over Fading Channels

, 2013
In this paper, the performance of adaptive modulation in multi-user cognitive radio networks over fading channels is analyzed. Multi-user diversity is considered for opportunistic user selection among multiple secondary users.
Foukalas, F., Khattab, T., Poor, H. V.
core   +1 more source

Respiratory Signal Processing and Analysis Using Flexible Capacitive Sensor Data

Advanced Materials Technologies, EarlyView.
Capacitive pressure sensors based on poly(glycerol sebacate) (PGS) substrates are developed for continuous, non‐invasive respiratory monitoring. Integrated with a signal processing algorithm, they enable accurate tracking of thoracic expansion and retraction.
Bernardo A. Vicente, Raquel Sebastião, Alda Marques, Vitor Sencadas   +3 more
wiley   +1 more source

Orbital angular momentum mode recognition under ocean turbulence channel by DCNN-RF model based on Adma optimization

Results in Physics
Gaussian beam carries orbital angular momentum with infinite Hebert space distribution, which is expected to realize large-capacity and long-distance transmission of underwater wireless optical communication.
Xiaoji Li, Hanze Xuan, Chen Huang, Yanlong Li   +3 more
doaj   +1 more source