Time Dispersion Parameters of Indoor Self-Interference Radio Channels in Sub-7-GHz Bands
| Autor: | Michael Peter, Wilhelm Keusgen, Ramez Askar, Mehrnoosh Mazhar Sarmadi, Thomas Haustein, Fabian Undi |
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| Rok vydání: | 2020 |
| Předmět: |
business.industry
Computer science Acoustics 05 social sciences Bandwidth (signal processing) Polarimetry Duplex (telecommunications) 050801 communication & media studies 020206 networking & telecommunications 02 engineering and technology Self interference Interference (wave propagation) Radio spectrum 0508 media and communications Horn antenna Dispersion (optics) 0202 electrical engineering electronic engineering information engineering Wireless business Computer Science::Information Theory Communication channel |
| Zdroj: | WCNC Workshops |
| Popis: | In full-duplex wireless communication systems, knowledge about the self-interference channel must be acquired to cancel the self- interference signal. This paper presents results' analysis of indoor measurements of multi-path self-interference wireless propagation channels. Three polarimetric self-interference radio channels were concurrently measured. The measurements were performed by means of a vector network analyzer, which was configured to sweep three gigahertz of bandwidth; distributed equally over three scattered frequency bands. These bands are: 2-to-3-GHz band, 3- to-4-GHz band, and 5.9-to-6.9-GHz band. The sweeps captured scattering-parameters, which hold the frequency responses of the self-interference propagation channels. A dually-polarized open boundary quad ridged horn antenna was used to observe the polarimetric self-interference channels. Antenna's ports were connected to two test ports of the vector network analyzer. The measurement setup allowed us to capture two orthogonal co-polar self-interference channels and one cross-polar self-interference channel. The channels were measured in a modern and spacious office environment. The antenna was at two and half meter height to be sequentially positioned along the office circumference at 25 different locations - sounding the self-interference channels. The averaged power delay profiles of all three self-interference channels are presented and compared among three sounded bands. Furthermore, the time dispersive behavior of the self-interference wireless channels has been statistically analyzed. |
| Databáze: | OpenAIRE |
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