Overtone

Toward Multi-functional 6g Wireless Networks Integrating Sensing Communication And Security

The timeline for 6G is aggressive. Early research is underway (2024–2028), with first standards expected around 2029 and commercial deployment by 2030. But the transition from a "communication-only" mindset to a requires action today.

The goal is not just a faster network. It is a wireless fabric that serves as the nervous system of our autonomous, digital future. The timeline for 6G is aggressive

For researchers, engineers, and policymakers, the message is clear: break the silos. The journey toward truly multi-functional 6G networks has begun, and the prize is a wireless infrastructure that is not only faster but also perceptive and inherently trustworthy. The goal is not just a faster network

The following points summarize the current research directions for a multi-functional 6G draft: Integrated Sensing and Secure Communication with XL-MIMO The journey toward truly multi-functional 6G networks has

Artificial Intelligence (AI) is the glue that binds sensing, communication, and security together. 6G will be "AI-native," meaning machine learning algorithms will manage the complex trade-offs between these functions in real-time.

All three functions use the same spectrum and the same baseband processing—

Examples
In synthesizer experiments you select the amplitudes and phases of the fundamental and 9 overtones to construct the beginning of a Fourier series. The sum is seen on a graphics display and the signal is available as sound card output.
toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security
toward multi-functional 6g wireless networks integrating sensing communication and security

You can test the Helmholtz assumption that the relative phases of the overtones are irrelevant to hearing.

In analyser experiments you capture sound from the sound card or from a WAV file up to several seconds long, select the starting time of the time slice and analyse time and frequency responses. The example shows the spectrum of a piano playing a middle C (262 Hz). The non-harmonic overtones are clearly seen. (Due to the stiffness of the string, the frequencies of the partials are too high.)

toward multi-functional 6g wireless networks integrating sensing communication and security
You may filter data with a digital filter and display spectrograms in color mode. This example shows the spectrogram taken from the word "harris" in the frequency range 0..10 kHz with a 4096-point-FFT every 2 ms (post processing). The formants of "i" and the high spectral components of "s" are clearly visible.
Sonogram
Short time spectral information may also be displayed in a 3-D representation, called "waterfall". The following example shows the waterfall spectrum of the same word "harris" as before. The red layer picks out the spectrum of "i" where the formants are visible again. The presentation may be rotated automatically or manually with scroll bars, in order to select the best "camera point".
toward multi-functional 6g wireless networks integrating sensing communication and security
 

Download version 1.15, June 2009: OVERTONE.ZIP (1.55 MB)

Unpack in a new folder, read README.TXT and start OVERTONE.EXE
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Make sure, that the sound device is not used by another application.)

For more information, send e-mail to address given in README.TXT

Unterrichtseinheit Analyse von Klangspektren von Alain Hauser (in German)

 
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toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security toward multi-functional 6g wireless networks integrating sensing communication and security