Browsing by Author "Pusane, Ali Emre"

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Citation - WoS: 2
Citation - Scopus: 3
A 130 nm CMOS Receiver for Visible Light Communication
(IEEE-Inst Electrical Electronics Engineers Inc, 2022) Baykaş, Tunçer; Yagan, Muhammed Yaser; Uysal, Murat; Pusane, Ali Emre; Baykas, Tuncer; Dundar, Gunhan; Yalcinkaya, Arda Deniz; Electrical-Electronics Engineering
Visible light communication (VLC) is an emerging technology that has been gaining attention over the last few years. Transmission of data at higher rates in a VLC system is mainly limited by the modulation bandwidth of the employed LED. To alleviate this limitation, equalization is frequently employed. This is usually achieved by either using discrete circuit elements or in digital form. In this paper, we present a power-efficient VLC receiver as a system-on-chip, implemented in 130 nm CMOS technology. The proposed receiver supports LEDs with different bandwidths thanks to the switchable equalizer. We tested the proposed receiver using phosphorescent white LEDs with different bandwidths on an experimental VLC link. For each tested LED, around 20 fold improvement in data rate was achieved compared to the original bandwidth of the LED. For the LED with a modulation bandwidth of 1.6 MHz, data rates of 32 Mbps and 50 Mbps at a BER of 10(-2) were obtained at a distance of 2 meters without and with a blue filter, respectively.
Citation - WoS: 0
Citation - Scopus: 1
Hybrid Mems-Based Molecular Communication System
(Institute of Electrical and Electronics Engineers Inc., 2019) Erküçük, Serhat; Baykaş, Tunçer; Baykaş, Tunçer; Erküçük, Serhat; Zeshan, Arooba; Pusane, Ali Emre; Electrical-Electronics Engineering
In this paper, we consider a molecular communication link integrated in a micro-electro mechanical system (MEMS) based environment. We apply acoustic tweezing techniques to the molecular communication system to increase communication reliability. We use finite element methods to simulate this hybrid system. By deriving the symbol error rate as the performance metric, we show that the proposed system facilitates reliable communication in the presence of fluid flow and its performance is robust against external factors, such as temperature.
Citation - WoS: 1
Citation - Scopus: 1
An Integrated Molecular Communication System Based on Acoustic Tweezers
(IEEE-Inst Electrical Electronics Engineers Inc, 2023) Baykaş, Tunçer; Pusane, Ali Emre; Baykas, Tuncer; Electrical-Electronics Engineering
In this work, a molecular communication link integrated with a micro-electro mechanical system (MEMS) based environment has been designed and simulated. The motivation behind this approach is to explore the possibility of merging acoustic tweezing technique with a molecular communication system to increase the accuracy and reliability of the overall communication link. The proposed design is simulated using finite element methods that mimic the actual environment for an accurate solution. We derive symbol error rate as a performance metric and further show that the proposed system outperforms the diffusion-based modulation techniques and facilitates a reliable communication in the presence of fluid flow and while being insusceptible to external factors.
Yüksek Hizli Görünür Işik İletişimi İçin Cmos Tabanli Tümleşik Alici Geliştirilmesi
(2021) Baykaş, Tunçer; Pusane, Ali Emre; Dündar, Günhan; Yağan, Muhammet Yaser; Kısacık, Rifat; Uysal, Murat; Yalçınkaya, Arda Deniz
Bu projede tümleşik eşlenik MOSFET aygıtları ve CMOS teknolojisi ile uyumlu kırmık-üstü fotodiyotlar kullanılarak, tek-kırmık görünür ışık haberleşme (Visible Light Communication-VLC) alıcısı geliştirilmiştir. Söz konusu alıcı türünün ilk örneklerinden birisidir. Devrenin isterleri VLC kanalının bant genişliğini ve veri hızını en yüksek degree artıracak, bit-hata oranını en düşük seviyede tutacak şekilde belirlenmiştir. Kuramsal olarak ortaya çıkarılan VLC kanal modeli üzerinden, farklı ışık kaynakları (farklı bant genişliklerine sahip LED aygıtları) ile uyumlu bir alıcı tümdevre tasarlanmış, ürettirilmiş ve test edilmiştir.