КФУ. Карточка публикации. Experimental Study of Channel Frequency-Correlation in an Indoor Multipath Environment for Wireless Key Generation

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EXPERIMENTAL STUDY OF CHANNEL FREQUENCY-CORRELATION IN AN INDOOR MULTIPATH ENVIRONMENT FOR WIRELESS KEY GENERATION

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2021

Язык

английский

Авторы, сотрудники КФУ

Галиев Айдар Ахатович, автор

Карпов Аркадий Васильевич, автор

Сулимов Амир Ильдарович, автор

Библиографическое описание на языке оригинала

Galiev A.A, Sulimov A.I, Karpov A.V., Experimental Study of Channel Frequency-Correlation in an Indoor Multipath Environment for Wireless Key Generation // Proceedings of the 2021 International Conference Engineering and Telecommunication (En&T). - 2021. - pp. 1-5. DOI: 10.1109/EnT50460.2021.9681779

Аннотация

Channel randomness in wireless communication systems can be employed for generating two copies of a key bits sequence in a given pair of nodes. Among others, the differential phase method that uses phase samples of two coherent frequency tones for generating high-entropy key bits sequence seems to be a promising technique. Unfortunately, implementation of the differential phase method relies on correct specification of the frequency separation of the probing tones, which requires additional study of the frequency-correlation properties of the propagation medium. This paper is devoted to experimental study of the channel frequency-correlation properties in a typical indoor environment. Frequency autocorrelation functions are experimentally determined for the signal envelope and carrier phase on four different indoor radio links. The estimates of the channel coherence bandwidth and multipath delay spread are performed, and the influence of the line-of-sight component (LOS) is considered. Our experiments showed that, depending on the LOS intensity, the coherence bandwidth on typical indoor radio links of 20-meters length varies from 8 MHz to 25 MHz (for the correlation level of 0.2), whereas for samples of the carrier phase, the coherence bandwidth is somewhat narrower and varies from 6 MHz to 19 MHz.

Ключевые слова

Multipath propagation, indoor radio communication, channel estimation, frequency correlation, coherence bandwidth, multipath delay spread, differential phase

Название журнала

Proceedings of the 2021 International Conference Engineering and Telecommunication (En&T)

URL

https://ieeexplore.ieee.org/document/9681779

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https://repository.kpfu.ru/?p_id=264725

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Галиев Айдар Ахатович	ru_RU
dc.contributor.author	Карпов Аркадий Васильевич	ru_RU
dc.contributor.author	Сулимов Амир Ильдарович	ru_RU
dc.date.accessioned	2021-01-01T00:00:00Z	ru_RU
dc.date.available	2021-01-01T00:00:00Z	ru_RU
dc.date.issued	2021	ru_RU
dc.identifier.citation	Galiev A.A, Sulimov A.I, Karpov A.V., Experimental Study of Channel Frequency-Correlation in an Indoor Multipath Environment for Wireless Key Generation // Proceedings of the 2021 International Conference Engineering and Telecommunication (En&T). - 2021. - pp. 1-5. DOI: 10.1109/EnT50460.2021.9681779	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=264725	ru_RU
dc.description.abstract	Proceedings of the 2021 International Conference Engineering and Telecommunication (En&T)	ru_RU
dc.description.abstract	Channel randomness in wireless communication systems can be employed for generating two copies of a key bits sequence in a given pair of nodes. Among others, the differential phase method that uses phase samples of two coherent frequency tones for generating high-entropy key bits sequence seems to be a promising technique. Unfortunately, implementation of the differential phase method relies on correct specification of the frequency separation of the probing tones, which requires additional study of the frequency-correlation properties of the propagation medium. This paper is devoted to experimental study of the channel frequency-correlation properties in a typical indoor environment. Frequency autocorrelation functions are experimentally determined for the signal envelope and carrier phase on four different indoor radio links. The estimates of the channel coherence bandwidth and multipath delay spread are performed, and the influence of the line-of-sight component (LOS) is considered. Our experiments showed that, depending on the LOS intensity, the coherence bandwidth on typical indoor radio links of 20-meters length varies from 8 MHz to 25 MHz (for the correlation level of 0.2), whereas for samples of the carrier phase, the coherence bandwidth is somewhat narrower and varies from 6 MHz to 19 MHz.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Multipath propagation	ru_RU
dc.subject	indoor radio communication	ru_RU
dc.subject	channel estimation	ru_RU
dc.subject	frequency correlation	ru_RU
dc.subject	coherence bandwidth	ru_RU
dc.subject	multipath delay spread	ru_RU
dc.subject	differential phase	ru_RU
dc.title	Experimental Study of Channel Frequency-Correlation in an Indoor Multipath Environment for Wireless Key Generation	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU