Results 41 to 50 of about 106,664 (319)

Range sidelobe suppression for OFDM-integrated radar and communication signal

The Journal of Engineering, 2019
To improve the RadCom system of performing both data transmission and radar-sensing functions, here a waveform design method for orthogonal frequency division multiplexing (OFDM) signal is proposed to solve the problem of high range sidelobe level in ...
Jiajun Zuo, Ruijuan Yang, Shaohua Luo, Yugang Zhou   +3 more
doaj   +1 more source

Nonlinear Distortion by Stimulated Brillouin Scattering in Kramers-Kronig Receiver Based Optical Transmission

Sensors, 2022
Nonlinear distortion for single-sideband (SSB) signals will significantly reduce the performance of Kramers–Kronig (KK) receiver-based optical transmission.
Yuzhu Zhu, Jiangbing Du, Weihong Shen, Zuyuan He   +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.
A. Yarmohammad, Harrold, TJ, Wang, L, O. Holland, Yarmohammad, A, M.A. Beach, G. Salami, Salami, G, Holland, O, T.J. Harrold, Beach, MA, L.F. Wang   +11 more
core   +1 more source

Cognitive radio networks

2012 9th International Conference on Communications (COMM), 2012
Cognitive Radio Networks (CRNs) are emerging as a solution to increase the spectrum utilization by using unused or less used spectrum in radio environments. The basic idea is to allow unlicensed users access to licensed spectrum, under the condition that the interference perceived by the licensed users is minimal.
openaire   +2 more sources

Trusted cognitive radio networking [PDF]

Wireless Communications and Mobile Computing, 2009
AbstractNetworking cognitive radios and nodes from primary system (PS) results in a heterogeneous coexisting multi‐radio wireless network, so that significant network throughput gain can be achieved. However, by investigating cognitive radio network (CRN) architecture, the links in CRNs are unlikely to support complete security check due to link ...
Kwang-Cheng Chen, Peng-Yu Chen, Neeli Rashmi Prasad, Ying-Chang Liang, Sumei Sun   +4 more
openaire   +2 more sources

Green Radio: Radio Techniques to Enable Energy Efficient Wireless Networks [PDF]

, 2011
Recent analysis by manufacturers and network operators has shown that current wireless networks are not very energy efficient, particularly the base stations by which terminals access services from the network.
Videv, S, Peter Grant, Harrold, TJ, Armour, Simon, Nakhai, M. Reza, Cheng-Xiang Wang, Hanzo, Lajos, Ku, Chui Choon Ivan, Videv, Stefan, Zhang, Jiayi, Tuan Le, Le, Tuan Anh, Ku, Ivan, Krikidis, I, Jiayi Zhang, John Thompson, Han, C, Ku, I, Simon Armour, Hanzo, L, Congzheng Han, M. Nakhai, Grant, P, Nakhai, M, Wang, C-X, Ioannis Krikidis, Haas, Harald, Stefan Videv, Armour, SMD, Thompson, J, Tim Harrold, Grant, Peter M., Harald Haas, Harrold, Tim, Wang, Cheng-Xiang, Le, T, Nakhai, M. Reza; id_orcid, Haas, H, Thompson, John S., Ivan Ku, Han, Congzheng, Lajos Hanzo, Krikidis, Ioannis, Zhang, J   +43 more
core   +1 more source

Mapping the VNFs and VLs of a RAN Slice Onto Intelligent PoPs in Beyond 5G Mobile Networks

IEEE Open Journal of the Communications Society, 2022
The mapping of a virtual network service onto a physical network infrastructure is a challenging task due to the joint allocation of virtual resources across nodes and links, the diverse technical requirements of end-users, the coordination between ...
Mohammad Asif Habibi, Faqir Zarrar Yousaf, Hans D. Schotten   +2 more
doaj   +1 more source

Pragmatic distributed algorithm for spectral access in cooperative cognitive radio networks [PDF]

, 2014
A pragmatic distributed algorithm (PDA) is proposed for supporting the efficient spectral access of multiple Primary Users (PUs) and Cognitive Users (CUs) in cooperative Cognitive Radio (CR) networks. The novelty of our PDA is that the PUs negotiate with
Ng, S.X., Liang, Wei, Feng, Jiao, Hanzo, Lajos   +3 more
core   +1 more source

A New Bit Repair Fast Reroute Mechanism for Smart Sensors IoT Network Infrastructure

Sensors, 2020
Today’s IP networks are experiencing a high increase in used and connected Internet of Things (IoT) devices and related deployed critical services. This puts increased demands on the reliability of underlayer transport networks.
Jozef Papan, Pavel Segec, Oleksandra Yeremenko, Ivana Bridova, Michal Hodon   +4 more
doaj   +1 more source

Coastal Ship Tracking with Memory-Guided Perceptual Network

Remote Sensing, 2023
Coastal ship tracking is used in many applications, such as autonomous navigation, maritime rescue, and environmental monitoring. Many general object-tracking methods based on deep learning have been explored for ship tracking, but they often fail to ...
Xi Yang, Haiyang Zhu, Hua Zhao, Dong Yang   +3 more
doaj   +1 more source