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Asymptotic Stability Region of Slotted Aloha [PDF]
IEEE Transactions on Information Theory, 2012 We analyze the stability of standard, buffered, slotted-Aloha systems. Specifically, we consider a set of $N$ users, each equipped with an infinite buffer. Packets arrive into user $i$'s buffer according to some stationary ergodic Markovian process of intensity $λ_i$.
Bordenave, Charles +2 more
openaire +3 more sources
Slotted Aloha for networked base stations [PDF]
2014 IEEE International Conference on Communications Workshops (ICC), 2014 We study multiple base station, multi-access systems in which the user-base station adjacency is induced by geographical proximity. At each slot, each user transmits (is active) with a certain probability, independently of other users, and is heard by all base stations within the distance $r$.
Dragana Bajovic +3 more
openaire +2 more sources
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
Coding for network-coded slotted ALOHA [PDF]
2015 IEEE Information Theory Workshop (ITW), 2015 Full version of a conference paper accepted by ITW ...
Shenghao Yang 0001 +3 more
openaire +2 more sources
IEEE Access, 2023 In satellite Internet-of-Things (IoT) systems using the 920-MHz band Low Power Wide Area, available channels for each terminal are limited to avoid interference with terrestrial networks. Since this limitation depends on the location of the terminal, the
Kansuke Kumazawa +7 more
doaj +1 more source
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
Throughput‐delay tradeoff for opportunistic spectrum access in cognitive radio networks
IET Communications, Volume 17, Issue 18, Page 2053-2067, November 2023., 2023 The authors address the tradeoff between the throughput of cognitive radio network and the delay of secondary user (SU) under a reactive channel handoff based opportunistic spectrum access scenario. The handoff blocking‐then‐reaccess scheme is deeply analyzed.
Jing Zhang +4 more
wiley +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
Astronomische Nachrichten, Volume 344, Issue 8-9, October-November 2023., 2023 Abstract Near‐infrared adaptive optics as well as fringe tracking for coherent beam combination in optical interferometry require the development of high‐speed sensors. Because of the high speed, a large analog bandwidth is required. The short exposure times result in small signal levels which require noiseless detection.
Gert Finger +18 more
wiley +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