Results 41 to 50 of about 44,293 (214)
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
core +1 more source
Towards a System Theoretic Approach to Wireless Network Capacity in Finite Time and Space [PDF]
, 2013 In asymptotic regimes, both in time and space (network size), the derivation of network capacity results is grossly simplified by brushing aside queueing behavior in non-Jackson networks.
Ciucu, Florin +4 more
core +2 more sources
Evaluasi Coded Random Access untuk Visible Light Communication pada Model Kanal Non-Line Of Sight
Jurnal Elkomika, 2022 ABSTRAK Penggunaan Non-Orthogonal Multiple Access (NOMA) pada sistem komunikasi dapat memberi kebebasan bagi user untuk mengirimkan informasi secara bersamaan tanpa harus memperebutkan timeslot ataupun frekuensi.
BRIAN PAMUKTI +2 more
doaj +1 more source
Coded Slotted ALOHA with Varying Packet Loss Rate across Users
, 2013 The recent research has established an analogy between successive interference cancellation in slotted ALOHA framework and iterative belief-propagation erasure-decoding, which has opened the possibility to enhance random access protocols by utilizing ...
Popovski, Petar, Stefanovic, Cedomir
core +1 more source
, 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
IEEE Access, 2023 In this paper, we consider a two-tier communication scenario for the data transmission of underwater sensor network. The underwater sensor nodes form single-hop clusters around the gateway nodes and communicate with them via acoustic wireless links ...
Priyatosh Mandal
doaj +1 more source
On multiple access random medium access control [PDF]
, 2009 In this paper, we develop a new class of medium access control protocol, which allows each user to transmit at different data rates chosen randomly from an appropriately determined set of rates.
Cui, Tao, Ho, Tracey
core +2 more sources
Guided-Aloha for Secondary Access With Spectrum Prediction
IEEE AccessThe demand for spectrum access continues to grow exponentially and dynamic spectrum access (DSA) is a candidate to alleviate issues with spectrum scarcity by adapting spectrum resources in real-time.
Sithamparanathan Kandeepan +5 more
doaj +1 more source
Heliyon, 2023 Analytical models and the prediction of accidents and their consequences are important tools for preventing accidents in the industry. Therefore, the present study was conducted to review process accident consequence modeling in Iran (2006–2022), helping
Mostafa Pouyakian +4 more
doaj +1 more source
Crisis Preparation, Capacity Building, and Community Resilience: Lessons From Maui
Nonprofit Management and Leadership, EarlyView.ABSTRACT The 2023 Maui wildfires provide a unique context to explore the impact of nonprofit crisis networks taking a proactive role in community crisis response, leveraging resources, expertise, and networks. The Hawaiʻi Community Foundation (HCF) has been a key player in Maui's local response, providing critical support, mobilizing volunteers, and ...
Lauren Azevedo +3 more
wiley +1 more source