Results 141 to 150 of about 167,869,504 (192)

Secrecy Performance of O-RAN-Enabled RIS-Assisted FSO/RF Satellite Downlinks. [PDF]

Entropy (Basel)
Li Y, Chen X, Shi J, Lv G, Jin Y.
europepmc   +1 more source

Joint Service Chain Orchestration and Computation Offloading via GNN-Based QMIX in Industrial IoT. [PDF]

Sensors (Basel)
Huang X, Tian B.
europepmc   +1 more source

Analysis and Forecasting of Clock Product Deviation for BDS-3 PPP-B2b Based on the Normalized Time-Frequency Transform. [PDF]

Sensors (Basel)
Wu M, Liu J, Liang Y, Yang Y, Luo Q, Zhan H.   +5 more
europepmc   +1 more source

A systematic literature review on IoT application layer protocol testing and future research directions. [PDF]

Discov Internet Things
Asgari Araghi M, Khendek F.
europepmc   +1 more source

Reinforcement Learning for Secure Semantic LEO Satellite Networks: Joint Fidelity-Secrecy Power Allocation. [PDF]

Sensors (Basel)
Zhou F, Zhu X.
europepmc   +1 more source

Random Access Preamble Design for 6G Satellite-Terrestrial Integrated Communication Systems. [PDF]

Sensors (Basel)
Hua M, Wu Z, Zhang C, Xu Z, Liu X, Zhou W.   +5 more
europepmc   +1 more source

Adaptive Weighted Factor Graph Optimized Positioning Algorithm Based on Joint GNSS/INS/Vision Residual Detection. [PDF]

Sensors (Basel)
Wang J, Zou J, Xing Y, Lu J, Wan P, Du J.   +5 more
europepmc   +1 more source

Building centaur responders: is emergency management ready for artificial intelligence? [PDF]

Disasters
Whyte C, Haupt B'.
europepmc   +1 more source

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QoE-Aware Intelligent Satellite Constellation Design in Satellite Internet of Things

IEEE Internet of Things Journal, 2021
In Satellite Internet of Things (SIoT), satellite constellation design is used to satisfy more communication demands with fewer satellites by optimizing satellite orbits in specific areas. However, the diversity of user demands and satellite resource poses a great challenge in evaluating the Quality of Experience (QoE) of the satellite constellation ...
Chong Li, Qianbin Chen, Mingjian Zhang
exaly   +2 more sources

The Performance of Chirp Signal Used in LEO Satellite Internet of Things

IEEE Communications Letters, 2019
The technology of chirp spread spectrum (CSS) has been around for decades, widely used in the fields of radar and sonar. In recent years, CSS has been used in the IEEE 802.15.4a and Long Range (LoRa) Internet of Things (IoT), called LoRa modulation. On the other hand, CSS has never been used in low-Earth-orbit (LEO) satellite communication systems for ...
Yubi Qian, Xuwen Liang
exaly   +3 more sources