MiSTA: Threshold-ALOHA with Mini Slots

Ahmetoğlu, Mutlu
Yavaşcan, Orhan Tahir
Uysal, Elif


MiSTA: An Age-Optimized Slotted ALOHA Protocol
Ahmetoglu, Mutlu; Yavascan, Orhan Tahir; Uysal, Elif (2022-09-01)
We introduce minislotted threshold ALOHA (MiSTA), a slotted ALOHA modification designed to minimize the network-wide time average Age of Information (AoI). In MiSTA, sources whose ages are below a certain threshold stay silent. A node with the age above the threshold becomes active in the next time frame with a certain probability. The active node first transmits a short control sequence in a minislot ahead of actual data transmission, and if collision is sensed, it backs off with a certain probability. We ...
GANILLA: Generative adversarial networks for image to illustration translation
Hicsonmez, Samet; Samet, Nermin; Akbaş, Emre; DUYGULU ŞAHİN, PINAR (Elsevier BV, 2020-03-01)
In this paper, we explore illustrations in children's books as a new domain in unpaired image-to-image translation. We show that although the current state-of-the-art image-to-image translation models successfully transfer either the style or the content, they fail to transfer both at the sametime. We propose a new generator network to address this issue and show that the resulting network strikes a better balance between style and content. There are no well-defined or agreed-upon evaluation metrics for unp...
PHPA as a frictional pressure loss reducer and its pressure loss estimation
Ercan, Can; Özbayoğlu, Evren; Department of Petroleum and Natural Gas Engineering (2007)
As the demand of oil and gas is increasing, using the existing reservoirs more efficiently as well as searching for new reservoirs is mandatory. Most undiscovered reservoirs are in deep or ultra-deep offshore locations, where drilling to such targets are very difficult with the available fluid circulation technology, since there exists a significant frictional pressure loss due to extreme long wellbores. In order to reduce the frictional pressure losses inside the drillstring, frictional drag reducers are u...
PHPA as a Frictional Pressure Loss Reducer and Its Pressure Loss Estimation
Ozbayoglu, M. E.; Ercan, C. (Informa UK Limited, 2010-01-01)
This article analyzes the performance of a liquid polymer emulsion containing partially hydrolyzed polyacrylamide/polyacrylate (PHPA) copolymer as a circulating system pressure loss (drag) reducer. Straight cylindrical pipe flow experiments were performed at different concentrations of solutions for measuring frictional pressure losses. Comparison of measured and theoretical frictional pressure loss values showed that as the PHPA concentration increased, considerable drag reduction (as high as 60%) was achi...
Sokoto, Saidu Aliyu Isa; Onur, Ertan; Department of Computer Engineering (2022-7-1)
This thesis presents a new logical clock, SGLC, capable of capturing causality relationships in distributed systems. SGLC relies on a succinct graph representation codable and decodable in polynomial time while storing the graphs as integers. What makes SGLC feasible is that directed graphs can be used to implement logical clocks. Consequently, the main goal of introducing SGLC is to reduce the communication overhead of transporting causal history graphs by encapsulating the causality relationships of event...
Citation Formats
M. Ahmetoğlu, O. T. Yavaşcan, and E. Uysal, “MiSTA: Threshold-ALOHA with Mini Slots,” presented at the IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), Romanya, 2021, Accessed: 00, 2022. [Online]. Available: http://dx.doi.org/10.1109/blackseacom52164.2021.9527766.