Results 41 to 50 of about 668,337 (217)
CMA and soft decision-directed scheme for semi-blind beamforming of QAM systems
, 2008 We propose a semi-blind adaptive beamforming approach for wireless systems that employ high-throughput quadrature amplitude modulation signalling schemes.
W. Yao +5 more
core +2 more sources
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani +2 more
wiley +1 more source
A digital beamforming algorithm of horizontally polarized directional antenna array
Dianzi Jishu Yingyong, 2020 In this paper, the digital beamforming algorithm for horizontally polarized directional antenna array in narrowband multipath environment is studied.
Tang Tao, Ma Huan, Wu Zhidong
doaj +1 more source
, 2008 —We consider beamforming assisted detection for multiple antenna aided multiuser systems that employ the bandwidth efficient quadrature amplitude modulation scheme.
Chen, Sheng +3 more
core +1 more source
Spaceborne Distributed Array Processing for Precision Source Localization
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Satellite‐based signals intelligence and spectrum sensing increasingly rely on low‐latency signal localization. However, operational processing chains often remain ground‐based, stressing feeder links and limiting scalability as constellations grow.
Dany Mestas +4 more
wiley +1 more source
International Journal of Distributed Sensor Networks, 2016 We investigate the physical-layer security of a wireless sensor network comprised of a source-destination pair, multiple decode-and-forward (DF) relays, and an eavesdropper.
Mujun Qian, Chen Liu, Yulong Zou
doaj +1 more source
Cooperative beamforming for a double-IRS-assisted wireless communication system
EURASIP Journal on Advances in Signal Processing, 2021 Intelligent reflecting surface (IRS) has emerged as an innovative and disruptive solution to boost the spectral and energy efficiency and enlarge the coverage of wireless communication systems.
Guodong Tian, Rongfang Song
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 6, Page 689-699, November/December 2026.ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley +1 more source
On Maximizing the Secrecy Rate in a Cooperative Wireless Network using Friendly Jammers
International Journal of Information and Communication Technology Research, 2016 In this paper, the security of two-phase relaying system with multiple intermediate nodes in the presence of a malicious eavesdropper is investigated.
Mohammad Hatami, Hamid Behroozi
doaj
Journal of Electronic Science and Technology, 2019 Energy harvesting (EH) is a promising technology to improve both energy efficiency and spectral efficiency in cognitive radio (CR) networks. However, due to the randomness of the harvested energy and the interference constraint at the primary users (PUs),
Jin-Xin Niu, Wei Guo
doaj +1 more source