Temat: wireless body area network channel - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: OFDM Performance of Ultra Wideband in Wireless Body Area Network Channel
Autorzy:: Karan, Y.
Şaylı, O.
Kahveci, S.
Powiązania:: https://bibliotekanauki.pl/articles/1031485.pdf
Data publikacji:: 2017-09
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: wireless body area network channel
orthogonal frequency-division multiplexing
least square channel estimation
interpolation
Opis:: Data transfer for health monitoring can be highly critical because of life dependency transmitted data. IEEE 802.15.6 is a standard for wireless body area network published in 2012 to satisfy the reliability which is required by health monitoring systems. Ultra wideband is one of proposed physical layer technologies specified in the wireless body area network standard which offers high bandwidth, low power, and low interference with other devices. Orthogonal frequency-division multiplexing is commonly used to transmit the data in many wireless communication standards due to its high spectral efficiency and immunity to the inter symbol interference. In this study, bit-error rate performance for orthogonal frequency-division multiplexing with different interpolation based least square channel estimation is given for wireless body area network channel model. OFDM symbol length and pilot length used in OFDM symbol is investigated in bit error rate - signal to noise ratio graphs.
Źródło:: Acta Physica Polonica A; 2017, 132, 3; 574-576
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Employing wireless networks in enhancing occupational safety at the developing seaport – two proposals
Autorzy:: Bauk, S.
Schmeink, A.
Colomer, J.
Powiązania:: https://bibliotekanauki.pl/articles/259992.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: occupational safety
developing seaport
Wireless Body Area Network Sensors (WBANSs)
channel simulations
physical layer
Opis:: The paper proposes two Wireless Body Area Network Sensors (WBANSs) scenarios at the logical and simulation levels for improving occupational safety and health conditions at the developing seaport environment. The Port of Bar (Montenegro) is taken as an exemplar. The logical model is based on the actual position of the Port of Bar at the seaport market, its needs and capacities for the information systems innovation through technology transfer and diffusion. The simulation model analyses the channel between the body central unit (BCU) of the worker’s on port wireless body sub-network and the port access point. The quality of the signal transmission at the physical layer has been tested through a source code generated in the Matlab. The code includes the BCU composite signal modulation, transmission, and demodulation, along with a noise and fading effects analysis. The results of the simulation experiments for the different transmission frequencies and distances between transmitter (worker’s BCU) and receiver (port’s access point) by using binary phase-shift keying (BPSK) and quadratic phase-shift keying (QPSK) modulation schemes are presented. Some directions for further investigations in this field are given, as well.
Źródło:: Polish Maritime Research; 2017, 1; 115-124
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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