Browsing by Author "Başaran, Mehmet"
Now showing items 1-13 of 13
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Achievable Performance of Bayesian Compressive Sensing Based Spectrum Sensing
Başaran, Mehmet; Erküçük, Serhat; Çırpan, Hakan Ali (IEEE, 2014)In wideband spectrum sensing compressive sensing approaches have been used at the receiver side to decrease the sampling rate if the wideband signal can be represented as sparse in a given domain. While most studies consider ... -
Bayesian Compressive Sensing For Primary User Detection
Başaran, Mehmet; Erküçük, Serhat; Cirpan, Hakan Ali (Inst Engineering Technology-IET, 2016)In compressive sensing (CS)-based spectrum sensing literature most studies consider accurate reconstruction of the primary user signal rather than detection of the signal. Furthermore possible absence of the signal is not ... -
Channel Estimation for TDS-OFDM Systems in Rapidly Time-Varying Mobile Channels
Başaran, Mehmet; Şenol, Habib; Erküçük, Serhat; Çırpan, Hakan Ali (IEEE-Inst Electrical Electronics Engineers Inc, 2018)This paper explores the performance of time-domain synchronous orthogonal frequency-division multiplexing (TDS-OFDM) systems operated under rapidly time-varying mobile channels. Since a rapidly time-varying channel contains ... -
Comparison of Compressed Sensing Based Algorithms for Sparse Signal Reconstruction
Çelik, Safa; Başaran, Mehmet; Erküçük, Serhat; Çırpan, Hakan Ali (IEEE, 2016)Compressed sensing theory shows that any signal which is defined as sparse in a given domain can be reconstructed using fewer linear projections instead of using all Nyquist-rate samples. In this paper we investigate basis ... -
Compressive sensing for ultra-wideband channel estimation: on the sparsity assumption of ultra-wideband channels
Başaran, Mehmet; Erküçük, Serhat; Cirpan, Hakan Ali (Wiley-Blackwell, 2014)Due to the sparse structure of ultra-wideband (UWB) multipath channels there has been a considerable amount of interest in applying the compressive sensing (CS) theory to UWB channel estimation. The main consideration of ... -
Çin Halk Cumhuriyeti'nin İran'a yonelik diş politikası
Başaran, Mehmet (Kadir Has Üniversitesi, 2009)Özellikle Soğuk Savas sonrasi hemen her alanda yukselise gecen cin Halk Cumhuriyeti son donemde uluslararasi arenada en cok sozu edilen devletlerden biri Cumhuriyeti son donemde uluslararasi arenada en cok sozu edilen ... -
The Effect of Channel Models on Compressed Sensing Based UWB Channel Estimation
Başaran, Mehmet; Erküçük, Serhat; Çırpan, Hakan Ali (IEEE, 2011)Ultra-wideband (UWB) multipath channels are assumed to have a sparse structure as the received consecutive pulses arrive with a considerable time delay and can be resolved individually at the receiver. Due to this sparse ... -
The effect of channel resolution on compressed sensing based Ultra-Wideband channel estimation [Kanal çözünürlü?ünün sıkıştırılmış algılama tabanlı ultra geni?ş bantlı kanal kesti?ri?mi?ne etki?si?]
Ultra short pulses are transmitted in Ultra-Wideband (UWB) communications. As a result of this pulses at the receiver can be resolved individually due to the sparse structure of the channel. Due to these properties the UWB ... -
Effect of Inter-Block-Interference-Free Region on Compressed Sensing Based Channel Estimation in TDS-OFDM Systems
Başaran, Mehmet; Erküçük, Serhat; Şenol, Habib; Cirpan, Hakan Ali (IEEE, 2016)Time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) is the basis technology for digital television standard (DTV) employed in some countries thanks to its high spectral efficiency when compared ... -
Effect of inter-block-interference-free region on compressed sensing based channel estimation in TDS-OFDM systems
Başaran, Mehmet; Erküçük, Serhat; Şenol, Habib; Çırpan, Hakan Ali (Institute of Electrical and Electronics Engineers Inc., 2016)Time domain synchronous orthogonal frequency division multiplexing (TDS-OFDM) is the basis technology for digital television standard (DTV) employed in some countries thanks to its high spectral efficiency when compared ... -
The Effect of Primary User Bandwidth on Bayesian Compressive Sensing Based Spectrum Sensing
Başaran, Mehmet; Erküçük, Serhat; Cirpan, Hakan Ali (IEEE Computer Society, 2016)The application of compressive sensing (CS) theory has found great interest in wideband spectrum sensing. Although most studies have considered perfect reconstruction of the primary user signal it is actually more important ... -
Performance of Combinational Cooperative Detection Method under Realistic Conditions
Samo, Rameez Ahmed; Başaran, Mehmet; Erküçük, Serhat (IEEE Computer Society, 2020)Combinational cooperative detection (CCD) is a method where signal energies from multiple secondary users (SUs) are gathered in different combinations in order to reach a unique decision for each secondary user regarding ... -
Realistic Channel Estimation of IEEE 802.11af Systems in TV White Space
Başaran, Mehmet; Macit, Mustafa Can; Şenol, Habib; Erküçük, Serhat (Institute of Electrical and Electronics Engineers Inc., 2020)This work investigates the realistic performance of IEEE 802.11af systems released for the efficient spectrum utilization of TV white space (TVWS). These systems are operated over many contiguous or non-contiguous channels ...