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Reconfigurable Intelligent Surfaces (RIS) concept
July 25, 2022 DSP / Wireless/SDR

Reconfigurable Intelligent Surfaces (RIS) – A Tutorial

For each generation of cellular networks, there is a significant jump in data rates due to the rising demand and

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Discrete Fourier Transform (DFT) of a DFT-even sequence
July 11, 2022 DSP

The Beauty of Symmetry in Fourier Transform

In 1978, Fred Harris was a relatively unknown faculty member at the San Diego State University when he published his

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Computation of the metric involves a correlation sum at a time difference of half symbol duration
June 13, 2022 Wireless/SDR

Timing Synchronization in OFDM Systems

Orthogonal Frequency Division Multiplexing (OFDM) has been the vehicle driving most high rate wireless communication systems in the world today.

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Electromagnetic spectrum
September 26, 2022 Wireless/SDR

On TeraHertz (THz) Band for Wireless Communication

Larger bandwidth has been the single most contributing factor in higher data rates throughout the history of wireless communication. In

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A line plot in 3D
June 6, 2022 Machine Learning

An Intuitive Guide to Linear Regression

We have described before how supervised learning can help us predict a continuous-valued output or organize the input into discrete

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Wireless Communications from the Ground Up - An SDR Perspective
Learn about wireless communications and SDR and 5G Physical Layer through great visualizations, simple maths and intuitive explanations
A wireless channel with speakers and microphone
Send and receive wireless signals over the air without expensive SDR hardware through a speaker (Tx) and a microphone (Rx)

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