Results 71 to 80 of about 74,234 (189)
Enhancing massive MIMO: A new approach for Uplink training based on heterogeneous coherence time
, 2017 Massive multiple-input multiple-output (MIMO) is one of the key technologies in future generation networks. Owing to their considerable spectral and energy efficiency gains, massive MIMO systems provide the needed performance to cope with the ever ...
Assaad, Mohamad +2 more
core +2 more sources
Guest Editorial: Unfolding the potential of 5G technologies for future wireless networks
IET Networks, EarlyView.Abstract With the rapid advancements in mobile Internet and smartphones, data traffic in current mobile communication systems is growing exponentially. At the same time, demands for lower latency, increased robustness, and higher energy efficiency are becoming more stringent.
Gwanggil Jeon +3 more
wiley +1 more source
American Journal of Political Science, EarlyView.Abstract The rise of social media in the digital era poses unprecedented challenges to authoritarian regimes that aim to influence public attitudes and behaviors. To address these challenges, we argue that authoritarian regimes have adopted a decentralized approach to produce and disseminate propaganda on social media.
Yingdan Lu +3 more
wiley +1 more source
UL-CSI Data Driven Deep Learning for Predicting DL-CSI in Cellular FDD Systems
IEEE Access, 2019 Frequency division duplex (FDD) systems dominate current cellular networks due to its advantages of low latency and strong anti-interference ability.
Jie Wang +5 more
doaj +1 more source
Spatial de-correlation of the UTRA-FDD radio channel [PDF]
, 2000 For smart antenna deployment in Frequency Division Duplex (FDD) applications the downlink weight vector can be derived from the uplink steering vector, assuming a degree of correlation between these channels.
Allen, Ben, Beach, Mark, Karlsson, Peter
core +1 more source
IDLB: An SDN‐Based Load‐Balancing Routing Protocol for Autonomous Satellite Constellation Networks
International Journal of Satellite Communications and Networking, Volume 44, Issue 2, Page 109-127, March/April 2026.ABSTRACT Routing in satellite constellation networks with intersatellite links has become an important aspect to enable broadband Internet access and to integrate into terrestrial networks. However, their dynamic characteristics and large physical size require specifically tailored solutions.
Manuel M. H. Roth +4 more
wiley +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 17-33, January/February 2026.In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak +3 more
wiley +1 more source
Mixer-Duplexer-Antenna Leaky-Wave System Based on Periodic Space-Time Modulation
, 2016 We present a mixer-duplexer-antenna leaky-wave system based on periodic space-time modulation. This system operates as a full transceiver, where the upconversion and downconversion mixing operations are accomplished via space-time transitions, the ...
Caloz, Christophe, Taravati, Sajjad
core +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 47-59, January/February 2026.The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source
Uplink Performance Analysis in D2D-Enabled mmWave Cellular Networks
, 2017 In this paper, we provide an analytical framework to analyze the uplink performance of device-to-device (D2D)-enabled millimeter wave (mmWave) cellular networks.
Gursoy, M. Cenk, Turgut, Esma
core +2 more sources