Results 11 to 20 of about 391,221 (333)
Design and characteristic analysis of hybrid OFD–LFM–PC waveforms in the MIMO radar
The Journal of Engineering, 2019 In this study, a new set of hybrid orthogonal frequency division–linear frequency modulation–phase coded (OFD–LFM–PC) waveforms are proposed to improve the detection performance of multiple-input-multiple-output (MIMO) radars.
Sheng Hong +4 more
doaj +1 more source
Sensors, 2023 Emergency event monitoring is a hot topic in wireless sensor networks (WSNs). Benefiting from the progress of Micro-Electro-Mechanical System (MEMS) technology, it is possible to process emergency events locally by using the computing capacities of ...
Zhihui Guo, Hongbin Chen, Shichao Li
doaj +1 more source
Spectrum sharing security and attacks in CRNs: a review [PDF]
, 2014 Cognitive Radio plays a major part in communication technology by resolving the shortage of the spectrum through usage of dynamic spectrum access and artificial intelligence characteristics.
Alhakami, Wajdi +2 more
core +3 more sources
Identification of Orbital Angular Momentum by Support Vector Machine in Ocean Turbulence
Journal of Marine Science and Engineering, 2022 With the advancement of underwater communication technology, the traditional modulation dimension has been introduced, developed and utilized. In addition, orbital angular momentum (OAM) is utilized as the modulation dimension for optical underwater ...
Xiaoji Li, Jiemei Huang, Leiming Sun
doaj +1 more source
Wireless Sensor Networks for Noise Measurement and Acoustic Event Recognitions in Urban Environments
Sensors, 2020 Nowadays, urban noise emerges as a distinct threat to people’s physiological and psychological health. Previous works mainly focus on the measurement and mapping of the noise by using Wireless Acoustic Sensor Networks (WASNs) and further propose some ...
Liyan Luo +5 more
doaj +1 more source
A Reconfigurable Platform For Cognitive Radio [PDF]
, 2005 Today¿s rigid spectrum allocation scheme creates a spectrum scarcity problem for future wireless communications. Measurements show that a wide range of the allocated frequency bands are rarely used.
Heskamp, M. +5 more
core +3 more sources
Multiband Spectrum Access: Great Promises for Future Cognitive Radio Networks [PDF]
, 2014 Cognitive radio has been widely considered as one of the prominent solutions to tackle the spectrum scarcity. While the majority of existing research has focused on single-band cognitive radio, multiband cognitive radio represents great promises towards ...
Ghaith Hattab +2 more
core +1 more source
Photonics, 2023 With the rapid development of the underwater Internet of Things (IoT), the number of underwater communication nodes is rapidly increasing. The access capacity of a traditional multi-antenna communication system is limited by the number of transmitting ...
Yanlong Li +5 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2018 In this paper, we consider a massive MIMO-enabled multi-way amplify-and-forward relay network with channel aging, where multiple users mutually exchange information via an intermediate relay equipped with massive antennas.
Fangqing Tan +3 more
doaj +1 more source
Spectrum sharing and cognitive radio [PDF]
, 2009 Spectrum sharing has been the subject of a 3 year research programme organised by the UK's Virtual Centre of Excellence in Mobile and Personal Communications.
Beach, MA +5 more
core +2 more sources