Bacınoğlu, Baran Tan
This thesis considers data transmission scenarios where timeliness of information transmission, or adapting to intermittently available resources is important. The first part of the thesis focuses on energy harvesting communication systems. For such systems, energy efficient scheduling algorithms that achieve certain throughput maximization and data freshness objectives are developed. The second part of the thesis considers data transmission for the purpose of tracking unstable sources through noisy channels. Conditions are developed on the rate of information transfer to satisfy order m moment trackability of these processes.


Optimizing Information Freshness in Random Access Channels
Yavaşcan, Orhan Tahir; Uysal, Elif; Department of Electrical and Electronics Engineering (2022-8-31)
In this work, a number of transmission strategies aimed at optimizing information freshness in random access channels are developed and studied. Threshold-ALOHA, an age-aware modification of slotted ALOHA, suggests a fixed age threshold on the terminals before they can become active and attempt transmissions with a constant probability. Threshold ALOHA nearly halves the average Age of Information (AoI) whilst the loss of throughput compared to slotted ALOHA is less than one percent. Mumista, multiple mini s...
Gokdogan, Gokhan; Vural, Elif (2017-09-28)
An important research topic of the recent years has been to understand and analyze manifold-modeled data for clustering and classification applications. Most clustering methods developed for data of non-linear and low-dimensional structure are based on local linearity assumptions. However, clustering algorithms based on locally linear representations can tolerate difficult sampling conditions only to some extent, and may fail for scarcely sampled data manifolds or at high-curvature regions. In this paper, w...
Process based information systems evaluation: Towards the attributes of "pRISE"
Özkan Yıldırım, Sevgi; Bilgen, Semih (2007-10-31)
Purpose The purpose of this paper is to demonstrate the importance of undertaking a systemic view of information systems evaluation that augments the frequently reported prescriptive (cost/benefit) analysis approaches. Design/methodology/approach The paper adopts a qualitative case perspective and derives a framework for substantive information systems evaluation factors (PRISE). Three empirical formulations are considered and a comparison made to determine the content and context of the findings. Finding...
Optimized Transmission of 3D Video over DVB-H Channel
Bugdayci, Done; Akar, Gözde; Gotchev, Atanas (2012-01-17)
In this paper, we present a complete framework of an end-to-end error resilient transmission of 3D video over DVB-H and provide an analysis of transmission parameters. We perform the analysis for various layering, protection strategy and prediction structure using different contents and different channel conditions.
Optimum design and operation of 'a pump-piping-storage system'
Kaplan, H; Seireg, A; Dölen, Melik (Inderscience Publishers, 2001-01-01)
The study reported in this paper is undertaken to develop a computer simulation and an optimum design and operation strategy for a general storage system. The influence of various design parameters on the total operation cost of the system for a general delivery regime is also studied.
Citation Formats
B. T. Bacınoğlu, “TIMELY COMMUNICATION FOR ENERGY-EFFICIENCY, DATA FRESHNESS AND TRACKING,” Ph.D. - Doctoral Program, Middle East Technical University, 2021.