卫星互联网若干关键技术研究

张更新, 王运峰, 丁晓进, 洪涛, 刘子威, 张晨 - 通信学报, 2021 - infocomm-journal.com
卫星互联网具备全球广域无缝覆盖能力, 是未来陆海空天一体化网络的重要组成部分. 首先,
讨论了卫星互联网体系架构, 包括系统一般组成, 组网方式, 工作过程等, 研究了卫星互联网场景 …

Variational Bayesian inference clustering-based joint user activity and data detection for grant-free random access in mMTC

Z Zhang, Q Guo, Y Li, M Jin… - IEEE Internet of Things …, 2023 - ieeexplore.ieee.org
Tailor-made for massive connectivity and sporadic access, grant-free random access has
become a promising candidate access protocol for massive machine-type communications …

Performance analysis of uplink NOMA with constellation–rotated STLC for IoT networks

KH Lee, JS Yeom, J Joung… - IEEE Open Journal of the …, 2022 - ieeexplore.ieee.org
We investigate the uplink non-orthogonal multiple access (NOMA)-based Internet-of-Things
(IoT) networks, where each IoT device (station: STA) equipped with a single antenna …

NOMA joint channel estimation and signal detection using rotational invariant codes and GMM-based clustering

A Salari, M Shirvanimoghaddam… - IEEE …, 2022 - ieeexplore.ieee.org
This letter studies the joint channel estimation and signal detection for the uplink power-
domain non-orthogonal multiple access. The proposed technique performs both detection …

Robust received signal strength indicator (RSSI)-based multitarget localization via gaussian process regression

N Führling, HS Rou, GTF de Abreu… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
We consider the robust localization, via Gaussian process regression (GPR), of multiple
transmitters/targets based on received signal strength indicator (RSSI) data collected by …

Robust training for RSSI-based localization

N Führling, HS Rou, GTF De Abreu… - 2023 IEEE 9th …, 2023 - ieeexplore.ieee.org
We consider the localization of multiple individ-ual moving transmitters (targets), based on
Gaussian process regression (GPR) using their corresponding received signal strength …

Heuristic Optimization-assisted Dilated Convolution Neural Network with Gated Recurrent Unit for Channel Estimation in NOMA-OFDM System

V Kondepogu, B Bhattacharyya - IEEE Access, 2024 - ieeexplore.ieee.org
The “Non-Orthogonal Multiple Access (NOMA)” strategies has been recently identified as a
successful way to increase spectrum effectiveness and reliability of the system. NOMA …

Design and analysis of clustering-based joint channel estimation and signal detection for NOMA

A Salari, M Shirvanimoghaddam… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
We propose a joint channel estimation and signal detection approach for the uplink non-
orthogonal multiple access (NOMA) using unsupervised machine learning. We apply a …

A Novel Expectation-Maximization-Based Blind Receiver for Low-Complexity Uplink STLC-NOMA Systems

KH Lee, BC Jung - Sensors, 2022 - mdpi.com
In this paper, we revisit a two-user space-time line coded uplink non-orthogonal multiple
access (STLC-NOMA) system for Internet-of-things (IoT) networks and propose a novel low …

Exploiting classifier diversity for efficient grant-free random access

Z Zhang, Y Liang, Y Li - ICC 2022-IEEE International …, 2022 - ieeexplore.ieee.org
Massive Machine-Type Communications (mMTC) scenario features a massive number of
randomly activated user equipments (UEs). To efficiently support the random access for UEs …