Public defence in Communications Engineering, M.Sc. Saba Norshahida

The title of the thesis: 5G Millimeter-Wave Fixed Wireless Access: Measurement, Modeling and Geospatial Planning

Thesis defender: Saba Norshahida
Opponent: Dr. Pekka Kyösti, University of Oulu, Finland
Custos: Prof. Riku Jäntti, Aalto University School of Electrical Engineering

This dissertation explores the application of millimeter-wave (mmWave) technology in fifth-
generation (5G) networks for fixed wireless access (FWA) solutions. The case study and validation
are based on the 26 GHz frequency band in Finnish environments, but the methods and findings
are broadly applicable to rural broadband planning in other regions. Amidst growing demand for
high-speed connectivity in rural areas, the study addresses the persistent digital divide by
investigating cost-effective strategies for broadband deployment. A comprehensive measurement
campaign was conducted across urban, suburban and rural locales in Finland to assess mmWave
signal propagation. The findings revealed critical insights into path loss, vegetation-induced
attenuation and line-of-sight versus non-line-of-sight conditions.

A key contribution of this research is the development of empirical channel models tailored to Finnish
environments, grounded in real-world data. These models were benchmarked against established
industry standards and demonstrated improved prediction accuracy. Geographical information
system (GIS) data, including laser-scanned point-cloud maps, were integrated into the analysis,
enabling precise modeling and optimization of mmWave networks. GIS-driven assessment
facilitated advanced radio planning techniques, allowing effective site selection and antenna height
optimization to maximize coverage.

The dissertation also explores leveraging existing base station infrastructure for mmWave FWA
deployment, thereby minimizing capital and operational expenditures. By introducing a structured
framework for network planning, including flow-level load balancing and adaptive frequency
allocation, the study presents practical guidelines for deploying robust 5G FWA systems.

The study highlights how using detailed geospatial analysis with GIS can significantly enhance the
deployment strategies for 5G mmWave technology. By incorporating geospatial data such as point
clouds and building information, GIS supports mobile network operators in overcoming deployment
challenges in rural areas, enabling more effective site selection and planning for 5G mmWave FWA.
This work offers practical insights for operators seeking to expand their 5G networks efficiently,
bridging the gap between theoretical predictions and real-world applications.

Key words: Fixed wireless access, millimeter-wave, 5G, radio planning, channel modeling, point-cloud map

Thesis available for public display 7 days prior to the defence at Aaltodoc. 

Contact:
https:\\www.linkedin.com/in/norshahida-saba-17425189