Abstract The problem of common mode voltage in inverters can be considered as a major issue which leads to motor bearing failures. To eliminate these voltages, proposing some methods seems to be necessary. This paper has a comparative study on estimating modulation methods of eliminating common mode voltage. The main idea of these methods is based on generation of reference vector with nearest ...

A new technique of modulation index adjustment for pure wavelength modulation spectroscopy second harmonic signal waveforms recovery is presented. As the modulation index is a key parameter in determining the exact form of the signals generated by the technique of wavelength modulation spectroscopy, the method of modulation index adjustment is applied to recover the second harmonic signal with ...

LoRa (Long Range) is a widely adopted Internet-of-Things (IoT) technique, but its fatal limit low data rate. In this letter, we propose new index modulation for to increase the rate, in which multiple quasi-orthogonal chirps modulated under different spreading factors (SFs) are concurrently transmitted, thereby leveraging SF domain as means carry more information. Both coherent and non-coherent...

The long range wide area network (LoRaWAN) is one of the enabling technologies for low power (LPWA) networks. In LoRaWAN, a node transmits its packet to gateway (GW) in an autonomous and decentralized manner. quantity data that can be transmitted by each limited duty cycle (DC). Furthermore, it not easy nodes perform sophisticated techniques increasing due their functionality, especially when a...

This paper studies a novel Radar and wireless communication fusion system namely, RadCom, using orthogonal frequency division multiplexing index modulation waveforms. From the perspective, information is conveyed not only through modulated subcarriers but also by active subcarrier indices that are dynamically updated at transmitted symbol rates. When compared with conventional systems, subset o...