M.Sc. Student / Tampere University

Alireza Ramyad

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Signal acquired / 4 satellites / PDOP 1.2

Wireless Communications MIMO / RF GNSS & Satellite Signal Processing

01 / About

From code to radio signals

My background is in computer engineering. At Tampere University, I am studying wireless communication: how a receiver tracks a weak signal, how radio waves propagate, and how a satellite link is designed.

My recent work includes GPS tracking loops, RF diversity measurements, and MATLAB simulations of wireless links. I am now preparing for my master’s thesis, with an interest in receiver design, MIMO, and satellite communications.

Explore the reports See the projects

Program: Communication Systems and Networks
University: Tampere University, Finland
Academic Focus: Wireless PHY, MIMO, RF & radio propagation, GNSS & satellite communications
Academic Performance: GPA 4.91 / 5.00
Relevant Coursework: Multicarrier & Multiantenna (5/5), Communication Theory (5/5), RF Equipment (5/5), Advanced Wireless (5/5)
Tools: Python, MATLAB, Simulink, NumPy, Matplotlib, Pandas, TensorFlow

02 / Technical reports

Experiments & simulations

Methods, plots, and recorded results from my M.Sc. coursework at Tampere University.

TR-01 / Experimental RF

RF diversity measurements

Key result 5–10λ space diversity increased mean PUSCH throughput from 8.8 to 12.8 Mbps (+45%).

RF Equipment for Wireless Networks · 2026

Indoor LTE field measurements comparing single-antenna reception with space and polarization diversity. The work examines antenna spacing, branch imbalance, PUSCH throughput, and channel-condition metrics including RSRP, RSRQ, and RSSI.

RFDiversityLTEMeasurements

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TR-02 / Physical Layer

Channel impairments

Technical focus Receiver behavior under noise, multipath, modulation-order changes, and phase impairment.

Communication Theory · MATLAB · 2026

MATLAB-based baseband simulations covering RRC pulse shaping, AWGN, multipath channels, matched filtering, QPSK/16-QAM/64-QAM constellations, frequency-selective fading, and phase-noise effects.

MATLABQAMMultipathPhase Noise

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Comparison of average SS-RSRP, SS-SINR and SS-RSRQ across three measured floors in the 5G NR laboratory report.

TR-03 / 5G Measurements

5G NR field measurements

Measured comparison Average 5G download throughput was 513.48 Mbps versus 62.98 Mbps on 4G in the test set.

5G Mobile Communications · 2026

5G NR study combining 3GPP-based throughput calculations with indoor measurements of throughput, SS-RSRP, SS-RSRQ, and SS-SINR across multiple floors using a 60 MHz n78 network and 2×2 MIMO.

5G NR2×2 MIMO3GPPField Measurements

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OFDM bit-error rate versus SNR for a 16-QAM Veh-AE channel with zero-forcing equalization.

TR-04 / Multicarrier & Multiantenna

OFDM & 4×4 MIMO

Recorded result OFDM BER fell from 0.328717 at 0 dB to 0.005117 at 24 dB over 1,000 channel frames per SNR point.

Multicarrier and Multiantenna Techniques · MATLAB · 2026

MATLAB baseband simulations of a 16-QAM CP-OFDM link with training-based channel estimation and zero-forcing equalization, alongside a 4×4 single-stream MIMO study comparing codebook and SVD beamforming, antenna selection, and space-time coding.

MATLABOFDM4×4 MIMOBeamforming

Read report PDF

03 / Projects

Receivers, loops & algorithms

Implementation work in MATLAB, Simulink, and Python, with source code to explore.

RX-01 / Carrier Tracking

MATLAB / Simulink GNSS Receiver

GPS carrier tracking

Doppler removal and PLL/FLL carrier tracking in MATLAB and Simulink.

Includes integrate-and-dump accumulation and performance analysis across signal conditions.

PLL FLL Signal Processing Wireless Systems

View code on GitHub

RX-02 / Code Tracking

MATLAB / Simulink Delay Lock Loop

GPS code tracking

GPS L1 C/A tracking with early, prompt, and late correlators.

Uses a non-coherent DLL discriminator and integrate-and-dump accumulation, with sensitivity analysis under SNR and integration-time variations.

DLL GNSS Code Tracking Receiver Design

View code on GitHub

Animated demonstration of the original Python and Pygame chess game.

AI-03 / Search System

Python Bachelor's Final Project

Chess search engine

A playable Pygame chess engine with Negamax and alpha-beta pruning.

Supports player-versus-player, player-versus-AI, and AI-versus-AI modes. The evaluation function uses piece-square tables.

Watch the original demo

Negamax Alpha-Beta Pygame Game AI

View code on GitHub

04 / Route — Interactive Link Lab

Route the signal

Tap the question to choose a link direction

Mission 01 Restore the Arctic link

Awaiting configuration

78.2 N / Research outpost

Build a link that survives the weather

A remote station has lost its telemetry channel. Choose the orbit, carrier band, weather condition, and transmitter power, then run a link check.

Simplified educational link-budget model using standard FSPL and ITU-R-inspired atmospheric and rain-fade approximations.

System ready Configure the link

Mission Control will estimate the path loss, received power, link margin, and round-trip delay.

Free-space path loss: -- dB
Atmospheric loss: -- dB
Received power: -- dBW
Rx sensitivity: -- dBW
Link margin: -- dB
End-to-end RTT: -- ms
Slant range: -- km
Elevation: -- deg

Link budget: Pr = Pt + Gt + Gr - FSPL - Latm - Limpl

05 / Research interests

Research interests

I would like to work on receiver algorithms and satellite links, building on my GNSS, RF, and multiantenna coursework.

I am also interested in where optimization and learning-based methods can improve channel estimation and resource allocation.

01 Physical Layer & MIMO

Multicarrier systems, multiantenna communications, receiver algorithms, and signal processing.

02 RF, Propagation & Satellite Systems

Radio propagation, RF measurements, GNSS, NTN/LEO, and satellite communication links.

03 Optimization & Learning Methods

Channel estimation, resource allocation, and data-driven methods for future wireless systems.

06 / Background

Education & experience

Oct 2022 - Nov 2023

Engineer Intern / Oloompezeshki

Gained practical experience in IT and technical support, assisted with system analysis and data processing tasks, and contributed to networking-related solutions.

2025 - Present

M.Sc. Student / Tampere University

Studying communication systems and networks with a focus on satellite communications, wireless systems, RF fundamentals, GNSS, and AI applications.

07 / Contact

Let’s talk

Based in Tampere, Finland. Open to thesis projects, research assistant roles, and part-time or full-time work.

CH-01 LinkedIn

Thesis, research, and professional contact via LinkedIn