Zobrazeno 1 - 10
of 238
pro vyhledávání: '"indoor radio communication"'
Autor:
Maciej Nikodem, Przemyslaw Szelinski
Publikováno v:
IEEE Access, Vol 9, Pp 169261-169269 (2021)
Bluetooth Low Energy (BLE) is a ubiquitous low-power communication technology used in many applications including location-based services. Typically, in BLE localization, the beacons transmit advertisement messages while moving devices infer their lo
Externí odkaz:
https://doaj.org/article/15ef8e7bd23b4949aaf14acedc5f5ac0
Autor:
Michał Styła, Przemysław Adamkiewicz
Publikováno v:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, Vol 12, Iss 1 (2022)
This article describes the design and implementation of a hybrid in-building navigation system. The word hybrid has a twofold meaning in this case. On the one hand, it refers to the use of two tracking methods: demanding (beacons) and not requiring a
Externí odkaz:
https://doaj.org/article/ded12edf50df480cb210f8c035c4dc32
Autor:
Dominik Gnaś, Przemysław Adamkiewicz
Publikováno v:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, Vol 12, Iss 1 (2022)
This paper discusses two ways of measuring the distance between the transmitter and the receiver using UWB technology, then identifies their advantages and disadvantages. The method of calculating the position is presented together with the method of
Externí odkaz:
https://doaj.org/article/37b10d76ff3f41ee91c141bd51847497
Autor:
Michał Styła, Przemysław Adamkiewicz
Publikováno v:
Informatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, Vol 12, Iss 1 (2022)
The aim of the presented project was to create a comprehensive building management system equipped with a network of wireless and energy-efficient sensors that collect data about users and on their basis control final devices such as lighting, ventil
Externí odkaz:
https://doaj.org/article/51d30d48c63b462babfb87cce266e809
Publikováno v:
IEEE Access, Vol 8, Pp 106036-106045 (2020)
A prefilter based on the time-reversal (TR) is proposed to control the multi-link interference (MLI) and the inter-symbol interference (ISI) for multi-link system. At first, we define a new parameter signal-to-sidelobe-plus-leakage ratio (SSLR) to re
Externí odkaz:
https://doaj.org/article/bf6d1ae5a51d4f1ebe42f2f3b60fac17
Publikováno v:
IEEE Access, Vol 7, Pp 74351-74360 (2019)
The reliability of a wireless sensor network (WSN) is often assessed on node-to-node communication performance through link characterization. Long-term routing stability is an aspect of a WSN that is often overlooked in routing protocol implementatio
Externí odkaz:
https://doaj.org/article/e78110b370574aef857342e8b442b1ce
Publikováno v:
IEEE Access, Vol 5, Pp 2172-2186 (2017)
The performance of wireless cellular networks in indoor scenarios is in large parts characterized by the blockage objects such as walls. These objects can be included in the system model in several ways. We present in this paper different wall genera
Externí odkaz:
https://doaj.org/article/e9bd8e23f8de4130bd4204ee6759a940
Publikováno v:
IEEE Access, Vol 5, Pp 13270-13276 (2017)
A simple field prediction model based on a combination of a two-parameter propagation formula and a multi-wall model is proposed for fast and yet accurate indoor and indoor-to-outdoor field prediction. The model's approach is based on: simplicity; ph
Externí odkaz:
https://doaj.org/article/bccaac760f4e4aec8780639352d5115f
Efficient and realistic indoor radio propagation modelling tools are inextricably intertwined with the design and operation of next generation wireless networks. Machine learning (ML)-based radio propagation models can be trained with simulated or re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a427930615d28b3adf865973976af385
Autor:
A. F. Cattoni, Marcello Donati, Armando Colamonico, Vittorio Rampa, Andrea Matera, Umberto Spagnolini
Publikováno v:
IEEE transactions on circuits and systems. II, Express briefs 67 (2020): 2988–2992. doi:10.1109/TCSII.2020.2983794
info:cnr-pdr/source/autori:Matera A., Rampa V., Donati M., Colamonico A., Cattoni A. F., Spagnolini U./titolo:Analog MIMO RoC Passive Relay for Indoor Deployments of Wireless Networks/doi:10.1109%2FTCSII.2020.2983794/rivista:IEEE transactions on circuits and systems. II, Express briefs/anno:2020/pagina_da:2988/pagina_a:2992/intervallo_pagine:2988–2992/volume:67
info:cnr-pdr/source/autori:Matera A., Rampa V., Donati M., Colamonico A., Cattoni A. F., Spagnolini U./titolo:Analog MIMO RoC Passive Relay for Indoor Deployments of Wireless Networks/doi:10.1109%2FTCSII.2020.2983794/rivista:IEEE transactions on circuits and systems. II, Express briefs/anno:2020/pagina_da:2988/pagina_a:2992/intervallo_pagine:2988–2992/volume:67
Most of the indoor coverage issues arise from network deployments that are usually planned for outdoor scenarios. Moreover, the ever-growing number of devices with different Radio Access Technologies (RATs), expected for new 5G scenarios and to maint