Results 71 to 80 of about 10,686 (217)

Narrowband Internet of Things (NB-IoT) and LTE Systems Co-Existence Analysis [PDF]

open access: yes2018 IEEE Global Communications Conference (GLOBECOM), 2018
In this paper, we establish a comprehensive uplink system model for in-band and guard-band Narrowband Internet of Things (NB-IoT) with arbitrary sample duration in the NB-IoT device. The mathematical expressions of received LTE and NB-IoT signals are derived.
Yang, Bowen   +4 more
openaire   +1 more source

Do's and Don'ts When Visiting Circularly Polarized Luminescence

open access: yesAdvanced Optical Materials, Volume 14, Issue 11, 20 March 2026.
This perspective presents our insights into the principles, challenges, and opportunities of circularly polarized luminescence (CPL). Highlighting key concepts such as the dissymmetry factor (glum) and molecular design strategies, we discuss advances in CPL efficiency, emerging NIR emitters, solid‐state applications, and the growing role of theory and ...
Rafael G. Uceda   +9 more
wiley   +1 more source

Analysis of communication reliability in NarrowBand‐IoT oriented wireless sensor networks

open access: yesIET Communications, 2021
The unstable link quality in wireless sensor networks (WSNs) directly affects the success rate of data transmission. The retransmission mechanism is one of the commonly used methods to solve this problem. However, too many retransmissions could lower the
Xingyu He   +5 more
doaj   +1 more source

Contactless Water Level Detection System for Pickling Barrels Using Image Recognition Technology

open access: yesIEEE Access, 2023
Water level monitoring has long been an important task for farmers. Because weather conditions can change quickly, farmers have often checked that the water levels of their crops were ideal for good growing conditions.
Chi-Huang Hung   +3 more
doaj   +1 more source

On Channel Estimation in LTE-Based Downlink Narrowband Internet of Things Systems

open access: yesElectronics, 2021
Narrowband Internet of Things (NB-IoT) systems were specified by 3GPP in release 13 as a low power wide area network (LPWAN) technology to operate with a very narrow bandwidth of 180 kHz only.
M. K. H. Jewel, R. S. Zakariyya, F. Lin
semanticscholar   +1 more source

Performance Analysis of CA‐Polar Code for 5G‐IoT Low Power Wide Area Networks

open access: yesInternet Technology Letters, Volume 9, Issue 2, March/April 2026.
ABSTRACT CRC‐Aided Polar (CA‐Polar) codes are the standardized channel coding scheme for control channels of 5G eMBB service class due to their capacity achieving performance. This work aims to assess the compatibility and scalability of CA‐Polar codes toward low power IoT applications coming under the domain of LPWAN.
Abhilasha Gautam   +2 more
wiley   +1 more source

Federated Learning and 5G/6G‐Based Internet of Medical Things (IoMT): Applications, Key Enabling Technologies, Open Issues and Future Research Directions

open access: yesWIREs Data Mining and Knowledge Discovery, Volume 16, Issue 1, March 2026.
This review examines the integration of federated learning (FL) in the Internet of Medical Things (IoMT), enhanced by 5G/6G technologies, to improve healthcare systems with decentralized data processing, enhanced privacy, reduced latency, and efficient resource utilization, while addressing emerging challenges and future research directions.
Abdul Ahad   +6 more
wiley   +1 more source

An Efficient Polar Coding Scheme for Uplink Data Transmission in Narrowband Internet of Things Systems

open access: yesIEEE Access, 2020
Narrowband Internet of Things (NB-IoT) is an emerging IoT cellular-based wireless technology that builds based on the existing LTE standard to extend its network coverage suited for Low Power Wide Area Network (LPWAN) connectivity.
Rabiu Sale Zakariyya   +4 more
doaj   +1 more source

User Assignment with Distributed Large Intelligent Surface (LIS) Systems

open access: yes, 2017
In this paper, we consider a wireless communication system where a large intelligent surface (LIS) is deployed comprising a number of small and distributed LIS-Units.
Chitti, Krishna   +3 more
core   +1 more source

Benchmarking Organic Photodiodes at the Noise Floor

open access: yesAdvanced Optical Materials, Volume 14, Issue 6, 9 February 2026.
A precise measurement framework based on a calibrated, ultra‐low‐noise automated setup with open‐source Python scripts enables accurate benchmarking of photodiodes. The unique combination of time‐dependent current measurement under dark conditions, followed by continuous‐wave faint illumination, facilitates reliable extraction of photocurrent near ...
Siddhartha Saggar   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy