Results 21 to 30 of about 48,167 (258)
The Influence of MAC Protocol on a Non-Synchronous Localization Scheme in Large-Scale UWSNs
IEEE Access, 2018 Localization plays a more and more important role in underwater wireless sensor networks (UWSNs). But in the large-scale UWSNs, the localization algorithm can’t be realized for the continuous packet collision.
Keyu Chen +4 more
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Stochastic Analysis of Non-slotted Aloha in Wireless Ad-Hoc Networks [PDF]
, 2010 In this paper we propose two analytically tractable stochastic models of non-slotted Aloha for Mobile Ad-hoc NETworks (MANETs): one model assumes a static pattern of nodes while the other assumes that the pattern of nodes varies over time.
Blaszczyszyn, Bartek, Muhlethaler, Paul
core +8 more sources
Alphaville: Journal of Film and Screen Media, 2018 It is now widely acknowledged that the postracial fantasies ushered in by Barack Obama’s two-term election success are now in tatters. Yet debates on yellowface casting practices in contemporary Hollywood (also said to have evolved into “whitewashing ...
Felicia Chan
doaj +1 more source
The Effect of Storage Temperature on Threat Zone Caused by an Ammonia Release from a Storage Tank
Hittite Journal of Science and Engineering, 2022 In this study, the threat zone that may occur as a result of an accidental release of an-hydrous ammonia, a flammable and highly toxic substance (Flammability:1, Health:3, NFPA 704), which has many uses, was investigated.
Abdurrahman Akman, Mustafa Serhat Ekinci
doaj +1 more source
Adaptive schemes for packet data in a ds-cdma environment [PDF]
, 1997 This paper presents a novel adaptive DS-CDMA slotted-ALOHA packet random access scheme for improving the throughput of the conventional DS-CDMA slotted-ALOHA system.
Agustí Comes, Ramon +1 more
core +1 more source
Информатика и автоматизация, 2019 Оценка защищенности сетей цифровой радиосвязи при деструктивных воздействиях злоумышленника является важной задачей. Однако для случайного множественного доступа к среде типа ALOHA в сетях цифровой радиосвязи такая оценка не проводилась.
Maksim Anatol'evich Peregudov +1 more
doaj +1 more source
DR-ALOHA-Q: A Q-Learning-Based Adaptive MAC Protocol for Underwater Acoustic Sensor Networks
Sensors, 2023 Underwater acoustic sensor networks (UASNs) are challenged by the dynamic nature of the underwater environment, large propagation delays, and global positioning system (GPS) signal unavailability, which make traditional medium access control (MAC ...
Slavica Tomovic, Igor Radusinovic
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Packet Flow Based Reinforcement Learning MAC Protocol for Underwater Acoustic Sensor Networks
Sensors, 2021 Medium access control (MAC) is one of the key requirements in underwater acoustic sensor networks (UASNs). For a MAC protocol to provide its basic function of efficient sharing of channel access, the highly dynamic underwater environment demands MAC ...
Ibrahim B. Alhassan, Paul D. Mitchell
doaj +1 more source
Application of ZigZag Decoding in Frameless ALOHA
IEEE Access, 2019 As ZigZag decoding (ZD) can resolve a collision between two packets, the combination of ZD and successive interference cancellation (SIC) is expected to provide a lower packet loss rate (PLR) and higher average throughput than the conventional frameless ...
Shun Ogata, Koji Ishibashi
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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