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Positioning, Synchronization, and Co...

Ettefagh, Yasaman,

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Positioning, Synchronization, and Communication in 6G: Insights from Massive MIMO, RIS, and NTN /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Positioning, Synchronization, and Communication in 6G: Insights from Massive MIMO, RIS, and NTN // Yasaman Ettefagh.
Author:	Ettefagh, Yasaman,
Description:	1 electronic resource (61 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-12, Section: A.
Contained By:	Dissertations Abstracts International86-12A.
Subject:	Wireless communications. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=32007451
ISBN:	9798283496412

Positioning, Synchronization, and Communication in 6G: Insights from Massive MIMO, RIS, and NTN /
Ettefagh, Yasaman,

Positioning, Synchronization, and Communication in 6G: Insights from Massive MIMO, RIS, and NTN /Yasaman Ettefagh. - 1 electronic resource (61 pages)

Source: Dissertations Abstracts International, Volume: 86-12, Section: A.

Sixth-generation (6G) wireless networks aim to transform communication and localization by enabling precise positioning and seamless connectivity for advanced applications like autonomous systems, augmented reality, and smart cities. Technologies like massive multiple input multiple-output (MIMO), reconfigurable intelligent surface (RIS), and non-terrestrial networks (NTNs) play a critical role in achieving these objectives by addressing challenges in capacity, coverage, and synchronization in diverse environments.This thesis investigates the use of massive MIMO technology to optimize communication architectures by analyzing the interplay between the number of antennas and quantizer resolution. This work identifies massive MIMO configurations that balance performance and complexity across varying signal- to-noise ratios (SNRs). The study contributes to the design of robust and scalable architectures for next-generation communication systems.Moving on to the localization topic, this thesis also explores a frugal RIS- enabled localization and synchronization setup designed to provide precise positioning in cost-effective deployments. A scenario with one base station (BS) and two RISs is studied to localize a stationary user equipment (UE), despite the presence of an unknown carrier frequency offset (CFO) between the UE and the BS. This work highlights the potential of RIS technology to enhance localization accuracy and reduce infrastructure requirements.Another emerging direction in localization is the use of NTNs, driven by their potential for large scale deployment. This thesis investigates an integrated LEO-cellular network for NTN-based localization and synchronization. A hybrid system with one BS and one low Earth orbit (LEO) satellite is analyzed to estimate the UE's position, velocity, clock bias, and CFO under synchronization challenges. The results highlight NTN's potential for robust localization in areas with limited terrestrial infrastructure.By tackling key challenges in communication and localization, this thesis contributes to the design of efficient solutions for 6G networks, supporting their practical deployment in next generation wireless systems.

English

ISBN: 9798283496412Subjects--Topical Terms:

3554231
Wireless communications.

Positioning, Synchronization, and Communication in 6G: Insights from Massive MIMO, RIS, and NTN /
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