Browsing by Author "Panayırcı, Erdal"
Now showing items 41-60 of 150
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IEEE 802.15.7r1 Reference Channel Models for Visible Light Communications
Miramirkhani, Farshad; Narmanlıoğlu, Ömer; Baykas, Tuncer; Uysal, Murat; Panayırcı, Erdal (IEEE-Inst Electrical Electronics Engineers Inc, 2017)The IEEE has established the standardization group 802.15.7r1 "Short Range Optical Wireless Communications", which is currently in the process of developing a standard for visible light communication (VLC). As with any ... -
An Improved Adaptive Subspace Tracking Algorithm Based on Approximated Power Iteration
Wu, Qiang; Zheng, Jian-Sheng; Dong, Zhicheng; Panayırcı, Erdal; Wu, Zhi-Qiang; Ren, Qingnuobu (IEEE-INST Electrical Electronics Engineers Inc, 2018)A subspace tracking technique has drawn a lot of attentions due to its wide applications. The main objective of this approach is to estimate signal or noise subspace basis for the sample covariance matrix. In this paper ... -
Improved Physical Layer Security in Visible Light Communications by Using Focused Light Emitters
Gurcuoglu, Oguz; Erdem, Mehmet Can; Cirkinoglu, H. Ozan; Ferhanoglu, Onur; Kurt, Gunes Karabulut; Panayırcı, Erdal (IEEE, 2021)A conventional visible light communication system consists of a transmitter, a jammer that includes a few light emitting diodes, a legal listener and an eavesdropper. In this work, a similar system is designed with a ... -
Information Theoretical Performance Analysis and Optimisation of Cooperative Underwater Acoustic Communication Systems
Nouri, Hatef; Uysal, Murat; Panayırcı, Erdal (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 ... -
Information theoretical performance limits of single-carrier underwater acoustic systems
Nouri, Hatef; Uysal, Murat; Panayırcı, Erdal; Şenol, Habib (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 ... -
Interpolation Based Pilot-Aided Channel Estimation for STBC Spatial Modulation and Performance Analysis Under Imperfect CSI
Acar, Yusuf; Dogan, Hakan; Basar, Ertugrul; Panayırcı, Erdal (Inst Engineering Technology-IET, 2016)A combination of space-time block coding and spatial modulation (STBC-SM) has been recently proposed for multiple input-multiple output systems to obtain both spatial diversity gain and more capacity simultaneously while ... -
Iterative channel estimation and decoding of turbo coded SFBC-OFDM systems
Doğan, Hakan; Çırpan, Hakan Ali; Panayırcı, Erdal (IEEE, 2007)We consider the design of turbo receiver structures for space-frequency block coded orthogonal frequency division multiplexing (SFBC-OFDM) systems in the presence of unknown frequency and time selective fading channels. ... -
Iterative channel estimation for spatial modulation systems over fast fading channels
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 2014)Spatial Modulation (SM) based on the use of antenna indices to transmit information in addition to the conventional signal constellations has been recently proposed to solve practical problems encountered in MIMO systems. ... -
Iterative channel estimation for spatial modulation systems over fast fading channels [Hızlı sönümlemeli kanallarda uzaysal modülasyon sistemleri için iteratif kanal kestirimi]
Acar, Yusuf; Doğati, Hakan; Panayırcı, Erdal (IEEE Computer Society, 2014)Spatial Modulation (SM) based on the use of antenna indices to transmit information in addition to the conventional signal constellations has been recently proposed to solve practical problems encountered in MIMO systems. ... -
Iterative channel estimation techniques for uplink MC-CDMA systems
Doğan, Hakan; Panayırcı, Erdal; Çırpan, Hakan Ali (IEEE, 2007)In this work maximum likelihood (ML) channel estimation for uplink multicarrier code-division multiple-access (MC-CDMA) systems is considered in the presence of frequency fading channel. The expectation-maximization (EM)- ... -
Iterative joint data detection and channel estimation for uplink MC-CDMA systems in the presence of frequency selective channels
This paper is concerned with joint multiuser detection and multichannel estimation (JDE) for uplink multicarrier code-division multiple-access (MC-CDMA) systems in the presence of frequency selective channels. The detection ... -
Iterative Receiver for DS-CDMA Systems in the Presence of Time-Varying Channels
Doğan, Hakan; Panayırcı, Erdal; Çırpan, Hakan Ali; Cam, Gökhan (IEEE, 2008)In this paper we present an efficient iterative receiver structure of tractable complexity for joint multiuser detection and multichannel estimation (JDE) of direct-sequence code-division multiple-access systems operating ... -
İterative receiver for DS-CDMA systems in the presence of time-varying channels
Doğan, H.; Panayırcı, Erdal; Çirpan, H.A.; Çam, G. (2008)In this paper, we present an efficient iterative receiver structure of tractable complexity for joint multiuser detection and multichannel estimation (JDE) ofdirect-sequence code-division multiple-access systems operating ... -
Joint Channel Estimation Equalization and Data Detection for OFDM Systems in the Presence of Very High Mobility
Panayırcı, Erdal; Şenol, Habib; Poor, H. Vincent (IEEE-INST Electrical Electronics Engineers Inc, 2010)This paper is concerned with the challenging and timely problem of joint channel estimation equalization and data detection for uplink orthogonal frequency division multiplexing (OFDM) systems in the presence of frequency ... -
Joint Data Detection and Channel Estimation for OFDM Systems in the Presence of Very High Mobility
Panayırcı, Erdal; Şenol, Habib; Poor, H. Vincent (IEEE, 2009)This paper is concerned with the challenging and timely problem of joint channel estimation and data detection for orthogonal frequency division multiplexing (OFDM) systems in the presence of frequency selective and very ... -
Joint data detection and channel estimation for uplink MC-CDMA systems over frequency selective channels
Panayırcı, Erdal; Doğan, Hakan; Çırpan, Hakan Ali; Fleury, Bernard Henri (Springer, 2007)This paper is concerned with joint channel estimation and data detection for uplink multicarrier code-division multiple-access (MC-CDMA) systems ill the presence of frequency fading channel. The detection and estimation ... -
Joint phase noise estimation and source detection [Ortak faz gürültüsü kestirimi ve kaynak sezimlemesi]
Rapidly time-varying and random disturbing effects on the phase of a signal waveform are known as phase noise. In this paper we consider the problem of joint detection of continuous-valued information source output and ... -
Joint Visible Light Communications and Positioning with Dimming
Bayman, Irem Ozgur; Cicek, Murat Akin; Kumas, Mete Berk; Demiryurek, Tan; Arsan, Taner; Panayırcı, Erdal (IEEE, 2023)In this paper, a novel visible light communication (VLC) and three-dimensional (3D) positioning (VLP) algorithm based on spatial modulation (SM) with dimming capability is proposed. With the help of the signal and pilot ... -
Linear expansions for frequency selective channels in OFDM
Şenol, Hande; Çırpan, Hakan Ali; Panayırcı, Erdal (Elsevier GMBH Urban & Fischer Verlag, 2006)Modeling the frequency selective fading channels as random processes we employ a linear expansion based on the Karhumen-Loeve (KL) series representation involving a complete set of orthogonal deterministic vectors with a ... -
Low-complexity joint data detection and channel equalisation for highly mobile orthogonal frequency division multiplexing systems
Dogan, Hakan; Panayırcı, Erdal; Poor, H. Vincent (2010)This study is concerned with the challenging and timely problem of channel equalisation and data detection for orthogonal frequency division multiplexing (OFDM) systems in the presence of frequency-selective and very rapidly ...