Research Outputs

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Now showing 1 - 9 of 9
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    A low complexity adaptive framework for the rate and performance enhancement of PMD limited fiber optic communication systems
    (Koç University, 2006) Öktem, Turgut Mustafa; Erdoğan, Alper Tunga; 0000-0003-0876-2897; Koç University Graduate School of Sciences and Engineering; Electrical and Computer Engineering; 41624
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    A performance comparison of single-radio multichannel medium access control protocols
    (Institute of Electrical and Electronics Engineers Inc., 2020) Department of Electrical and Electronics Engineering; N/A; N/A; Ergen, Sinem Çöleri; Uçar, Seyhan; Kaytaz, Umuralp; Faculty Member; PhD Student; PhD Student; Department of Electrical and Electronics Engineering; College of Engineering; Graduate School of Sciences and Engineering; Graduate School of Sciences and Engineering; 7211; N/A; N/A
    Single-radio multi-channel Medium Access Control (MAC) protocols aim to transmit in parallel on distinct channels while reducing the hardware cost. Although a variety of MAC protocols have been proposed in this context, no detailed classification and performance comparison is available. In this paper, we first classify previous efforts by their rendezvous characteristics as single- and multi-rendezvous protocols. Multirendezvous protocols have the capability of supporting simultaneous handshaking on different channels whereas with single-rendezvous protocols only asynchronous channel negotiations are allowed. Then, we further classify these protocols according to their spectrum decision mechanisms. We demonstrate the functionality of single- and multi-rendezvous protocols under different scenarios via extensive simulations. Our findings show that multi-rendezvous protocol performs better when the transmission range is low and less number of channels is available. Single-rendezvous protocols, on the other hand, are more suitable for networks with larger traffic loads due to their slot-based decision-making schemes.
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    Audio-visual correlation modeling for speaker identification and synthesis
    (Koç University, 2006) Sargın, Mehmet Emre; Tekalp, Ahmet Murat; Erzin, Engin; 0000-0003-1465-8121; 0000-0002-2715-2368; Koç University Graduate School of Sciences and Engineering; Electrical and Computer Engineering; 26207; 34503
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    Cognition-enabling techniques for next-generation radar and electronic warfare systems
    (Koç University, 2019) Arık, Muharrem; Akan, Özgür Barış; 0000-0003-2523-3858; Koç University Graduate School of Sciences and Engineering; Electrical Engineering; 6647
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    Domain adaptation for speech-driven affective facial features synthesis
    (Koç University, 2020) Sadıq, Rızwan; Erzin, Engin; 0000-0002-2715-2368; Koç University Graduate School of Sciences and Engineering; Electrical and Electronics Engineering; 34503
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    Driver status identification from driving behavior signals
    (Koç University, 2010) Öztürk, Emre; Erzin, Engin; 0000-0002-2715-2368; Koç University Graduate School of Sciences and Engineering; Electrical and Computer Engineering; 34503
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    GAN inversion based image manipulation with text-guided encoders
    (Koç University, 2022) Baykal, Ahmet Canberk; Yüret, Deniz; 0000-0002-7039-0046; Koç University Graduate School of Sciences and Engineering; Computer Science and Engineering; 179996
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    Music-driven dance synthesis by multimodal dance performance analysis
    (Koç University, 2008) Demir, Yasemin; Tekalp, Ahmet Murat; Erzin, Engin; 0000-0003-1465-8121; 0000-0002-2715-2368; Koç University Graduate School of Sciences and Engineering; Electrical and Computer Engineering; 26207; 34503
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    Sparse recovery using variable band for compressive sensing algorithms
    (Koç University, 2023) Ahmed, Waqar; Koçyiğit, İlker; Koç University Graduate School of Sciences and Engineering; Mathematics