Results 1 to 10 of about 456 (111)
Slotted ALOHA on LoRaWAN-Design, Analysis, and Deployment [PDF]
Sensors, 2019 LoRaWAN is one of the most promising standards for long-range sensing applications. However, the high number of end devices expected in at-scale deployment, combined with the absence of an effective synchronization scheme, challenge the scalability of ...
Davide Brunelli +2 more
exaly +4 more sources
LC-DFSA: Low Complexity Dynamic Frame Slotted Aloha Anti-Collision Algorithm for RFID System [PDF]
Sensors, 2019 With the rapid development of the Internet of Things (IoT), the radio frequency identification (RFID) system becomes increasingly important. Tag identification is a basic problem of the RFID system, whose purpose is to inventory tags.
Zhaozhe Jiang +3 more
doaj +2 more sources
Airborne-Platform-Assisted Transmission and Control Separation for Multiple Access in Integrated Satellite–Terrestrial Networks [PDF]
SensorsCurrently, the primary random access protocol for satellite communications is Irregular Repetition Slotted ALOHA (IRSA). This protocol leverages interference cancellation and burst repetition based on probabilistic distributions, achieving up to 80 ...
Chaoran Huang +4 more
doaj +2 more sources
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.
Hussein T. Mouftah, Jahangir H Sarker
exaly +3 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
IEEE Access, 2022 In this study, we investigate the use of low-altitude unmanned aerial vehicles (UAVs) in air-to-ground (A2G) communication networks, which still have various issues and challenges. In particular, the limited battery power of UAVs render their flight time
Junseung Lee +3 more
doaj +1 more source
An Uplink Random Access Scheme Based on ALOHA System Assisted by Gain Division Multiple Access
IEEE Access, 2023 Gain division multiple access (GDMA) is a non-orthogonal multiple access (NOMA) technique for uplink communications. In GDMA, the receiver employs both the magnitudes and phases of channel gains associated to the users to separate users.
Mao-Chao Lin +3 more
doaj +1 more source
Collision-aware distributed detection with population-splitting algorithms
EURASIP Journal on Wireless Communications and Networking, 2021 We consider the design of distributed detection algorithms for single-hop, single-channel wireless sensor networks in which sensor nodes send their local decisions to a fusion center (FC) by using a random access protocol.
Seksan Laitrakun
doaj +1 more source
Improving LoRaWAN Performance Using Reservation ALOHA [PDF]
Journal of Information Technology Management, 2020 LoRaWAN is one of the new and updated standards for IoT applications. However, the expected high density of peripheral devices for each gateway, and the absence of an operative synchronization mechanism between the gateway and peripherals, all of which ...
Dina M. Ibrahim
doaj +1 more source
International Journal of Distributed Sensor Networks, 2020 We consider the composite hypothesis testing problem of time-bandwidth-constrained distributed detection. In this scenario, the probability distribution of the observed signal when the event of interest is happening is unknown.
Seksan Laitrakun
doaj +1 more source