Results 31 to 40 of about 48,167 (258)
, 2023 O surf é mais do que um esporte, é uma arte. A arte de dançar sobre as ondas. Por trás de toda demonstração artística, existe uma base com fundamentos bem definidos. No caso do surf, a física se apresenta como a mais bela forma de descreve-lo. ALOHA: A física do surf apresenta todos os conceitos físicos e oceanográficos usados para descrever a ...
openaire +3 more sources
Sensors, 2022 The blooming of internet of things (IoT) services calls for a paradigm shift in the design of communications systems. Short data packets sporadically transmitted by a multitude of low-cost low-power terminals require a radical change in relevant aspects ...
Federico Clazzer, Marcel Grec
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Stabilized multi-channel ALOHA for wireless OFDM networks [PDF]
, 2002 Multiple access based on orthogonal frequency division multiplexing (OFDM), or OFDMA, enables multiple users to simultaneously access the media by using different subcarriers. This leads to the convenient realization of multi-channel ALOHA, in which each
Li, VOK, Shen, D
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Occupational exposures to solvents and metals are associated with fixed airflow obstruction
Scandinavian Journal of Work, Environment & Health, 2017 OBJECTIVES: This study investigated the associations between occupational exposures to solvents and metals and fixed airflow obstruction (AO) using post-bronchodilator spirometry. METHODS: We included 1335 participants from the 2002–2008 follow-up of the
Sheikh M Alif +20 more
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Journal of Advanced Research, 2011 It is expected that many networks will be providing services at a time in near future and those will also produce different interfering signals for the current Slotted ALOHA based systems.
Jahangir H. Sarker, Hussein T. Mouftah
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Journal of Applied Sciences in Travel and Hospitality, 2022 This research discusses the assessment of guest satisfaction through the service quality that is provided by the Aloha department at Aloft Bali Seminyak.
Gede Aditya Gunawan +3 more
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ALOHA With Collision Resolution(ALOHA-CR): Theory and Software Defined Radio Implementation
, 2009 A cross-layer scheme, namely ALOHA With Collision Resolution (ALOHA-CR), is proposed for high throughput wireless communications in a cellular scenario.
Dandekar, Kapil R. +3 more
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Exploiting Regional Differences: A Spatially Adaptive Random Access [PDF]
, 2015 In this paper, we discuss the potential for improvement of the simple random access scheme by utilizing local information such as the received signal-to-interference-plus-noise-ratio (SINR).
Kim, Dong Min, Kim, Seong-Lyun
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Performance Evaluation of LoRaWAN for Green Internet of Things
IEEE Access, 2019 LoRa is a long-range, low power and single-hop wireless technology that has been envisioned for Internet of Things (IoT) applications having battery driven nodes.
Zulfiqar Ali +4 more
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Slotted ALOHA Overlay on LoRaWAN: a Distributed Synchronization Approach
, 2018 LoRaWAN is one of the most promising standards for IoT applications. Nevertheless, the high density of end-devices expected for each gateway, the absence of an effective synchronization scheme between gateway and end-devices, challenge the scalability of
Benini, Luca +2 more
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