An Optimized IR-UWB Communication System with Interference Reduction on a Narrowband System Using Genetic Algorithm
| Autor: | Hassan Khalesi, Vahid Ghods |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
Pulse (signal processing) Ultra-wideband 020206 networking & telecommunications Keying Astrophysics::Cosmology and Extragalactic Astrophysics 02 engineering and technology Communications system Interference (wave propagation) Signal Computer Science Applications Amplitude Narrowband Interference (communication) Modulation 0202 electrical engineering electronic engineering information engineering Electronic engineering Waveform 020201 artificial intelligence & image processing Electrical and Electronic Engineering Transceiver Astrophysics::Galaxy Astrophysics Computer Science::Information Theory |
| Zdroj: | Wireless Personal Communications. 118:447-460 |
| ISSN: | 1572-834X 0929-6212 |
| DOI: | 10.1007/s11277-020-08023-5 |
| Popis: | This paper proposed a new impulse radio ultra wideband (IR-UWB) signal to reduce interference on narrowband systems at high usage 5.2 GHz frequency. The combination of 4th and 5th order derivatives of Gaussian pulses were employed to generate the signal so that satisfy the US Federal Communications Commission (FCC) mask. The genetic algorithm technique was used to find the pulse optimized parameters. In this paper, spectrum was optimized by changing the shape factor (sigma) and amplitude of Gaussian pulses so that the transmitted power spectrum density was minimized at a frequency of 5.2 GHz and maximized at the other frequencies from 3.1 to 10.6 GHz according to the FCC mask. The signal was applied in an IR-UWB transceiver system with binary-phase shift keying modulation. The IR-UWB waveform is generated by a programmable digital to analog based circuit. The proposed system was compared with conventional IR-UWB systems at the same condition. The simulation results in multipath channel showed that the proposed system not only reduced interference with the narrowband system, but also this was robust against narrowband interference at 5.2 GHz frequency. |
| Databáze: | OpenAIRE |
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