Browsing by Author "Uysal, Murat"
Now showing items 1-16 of 16
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A Mobile Channel Model for VLC and Application to Adaptive System Design
Authors:Miramirkhani, Farshad; Narmanlioglu, Omer; Uysal, Murat; Panayirci, Erdal
Publisher and Date:(IEEE-INST Electrical Electronics Engineers Inc, 2017)In this letter we propose a realistic channel model for visible light communication (VLC) assuming a mobile user. Based on non-sequential ray tracing we first obtain channel impulse responses for each point over the user ...
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Channel estimation in underwater cooperative OFDM system with amplify-and-forward relaying
Authors:Şenol, Habib; Panayirci, Erdal; Erdoğan, Mustafa; Uysal, Murat
Publisher and Date:(IEEE, 2012)This paper is concerned with a challenging problem of channel estimation for amplify-and-forward cooperative relay based orthogonal frequency division multiplexing (OFDM) systems in the presence of sparse underwater acoustic ...
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Generalized LED Index Modulation Optical OFDM for MIMO Visible Light Communications Systems
Authors:Basar, Ertugrul; Panayirci, Erdal; Uysal, Murat; Haas, Harald
Publisher and Date:(IEEE, 2016)In this paper we propose a generalized light emitting diode (LED) index modulation scheme for multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) visible light communications (VLC) systems. ...
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Information Theoretical Performance Analysis and Optimisation of Cooperative Underwater Acoustic Communication Systems
Authors:Nouri, Hatef; Uysal, Murat; Panayirci, Erdal
Publisher and Date:(Inst Engineering Technology-IET, 2016)In this study the authors investigate the information theoretical limits on the performance of single-carrier cooperative underwater acoustic communication systems in the presence of intersymbol interference. The authors ...
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Information theoretical performance limits of single-carrier underwater acoustic systems
Authors:Nouri, Hatef; Uysal, Murat; Panayirci, Erdal; Şenol, Habib
Publisher and Date:(Inst Engineering Technology-IET, 2014)In this study the authors investigate the information theoretical limits on the performance of point-to-point single-carrier acoustic systems over frequency-selective underwater channels with intersymbol interference. Under ...
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Modeling of Visible Light Channels and Performance Analysis of ACO-OFDM
Authors:Yeşilkaya, Anıl; Alsan, Hüseyin Fuat; Miramirkhani, Farshad; Panayirci, Erdal; Şenol, Habib; Uysal, Murat
Publisher and Date:(IEEE, 2015)Spectrum scarcity of traditional radio communication has led communication engineers to find new alternatives. Indoor visible light communication is one alternative to solve this problem since its spectrum is not regulated ...
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MP-SAGE Based Channel Estimation for Underwater Cooperative OFDM Systems
Authors:Erdogan, Mustafa; Şenol, Habib; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(IEEE, 2013)In this paper an efficient channel estimation algorithm is proposed for amplify-and-forward (AF) cooperative relay based orthogonal frequency division multiplexing (OFDM) system in the presence of sparse underwater acoustic ...
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Novel Channel Models For Visible Light Communications
Authors:Miramirkhani, Farshad; Uysal, Murat; Panayirci, Erdal
Publisher and Date:(Spie-Int Soc Optical Engineering, 2015)In this paper we investigate channel modeling for visible light communications (VLC) using non-sequential ray tracing simulation tools. We create three dimensional realistic simulation environments to depict indoor scenarios ...
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Optical MIMO-OFDM With Generalized LED Index Modulation
Authors:Yeşilkaya, Anıl; Basar, Ertugrul; Miramirkhani, Farshad; Panayirci, Erdal; Uysal, Murat; Haas, Harald
Publisher and Date:(IEEE-INST Electrical Electronics Engineers Inc, 2017)Visible light communications (VLC) is a promising and uncharted new technology for the next generation of wireless communication systems. This paper proposes a novel generalized light emitting diode (LED) index modulation ...
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Performance of MIMO Enhanced Unipolar OFDM With Realistic Indoor Visible Light Channel Models
Authors:Yeşilkaya, Anıl; Miramirkhani, Farshad; Basar, Ertugrul; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(Institute of Electrical and Electronics Engineers Inc., 2016)Visible light communication (VLC) involves the dual use of illumination infrastructure for high speed wireless access. Designing such optical based communication systems realistic indoor optical channel modeling becomes ...
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Performance of MIMO Enhanced Unipolar OFDM With Realistic Indoor Visible Light Channel Models
Authors:Yeşilkaya, Anıl; Miramirkhani, Farshad; Basar, Ertugrul; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(Institute of Electrical and Electronics Engineers Inc., 2016)Visible light communication (VLC) involves the dual use of illumination infrastructure for high speed wireless access. Designing such optical based communication systems realistic indoor optical channel modeling becomes ...
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Performance of MIMO Enhanced Unipolar OFDM with Realistic Indoor Visible Light Channel Models
Authors:Yeşilkaya, Anıl; Miramirkhani, Farshad; Basar, Ertugrul; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(IEEE, 2016)Visible light communication (VLC) involves the dual use of illumination infrastructure for high speed wireless access. Designing such optical based communication systems realistic indoor optical channel modeling becomes ...
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Sparse Channel Estimation and Equalization for OFDM-Based Underwater Cooperative Systemsw with Amplify-and-Forward Relaying
Authors:Panayirci, Erdal; Senol, Habib; Uysal, Murat; Poor, H. Vincent
Publisher and Date:(IEEE-INST Electrical Electronics Engineers Inc, 2016)This paper is concerned with a challenging problem of channel estimation and equalization for amplify-and-forward cooperative relay based orthogonal frequency division multi-plexing (OFDM) systems in sparse underwater ...
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Sparse Channel Estimation for OFDM-Based Underwater Acoustic Systems in Rician Fading With a New OMP-MAP Algorithm
Authors:Panayirci, Erdal; Altabbaa, Mhd Tahssin; Uysal, Murat; Poor, H. Vincent
Publisher and Date:(IEEE, 2019)In this paper a new channel estimation algorithm is proposed that exploits channel sparsity in the time domain for an orthogonal frequency division multiplexing (OFDM)-based underwater acoustical (UWA) communications systems ...
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Sparse channel estimation for OFDM-based underwater cooperative systems with amplify-and-forward relaying
Authors:Şenol, Habib; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(IEEE Computer Society, 2014)This paper is concerned with a challenging problem of channel estimation for amplify-and-forward cooperative relay based orthogonal frequency division multiplexing (OFDM) systems in the presence of sparse underwater acoustic ...
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Sparse underwater acoustic channel estimation in colored Gaussian noise [Renkli̇ Gauss gürültülü seyrek sualtı akusti̇k kanalların kestirimi]
Authors:Erdoğan, Mustafa; Şenol, Habib; Panayirci, Erdal; Uysal, Murat
Publisher and Date:(IEEE, 2012)Cooperative underwater acoustic communication systems come into prominence in recent years. Since underwater channels are sparse and additive noise entering the system is colored Gaussian noise. Therefore it is very difficult ...