Browsing by Author "Doğan, Hakan"
Now showing items 1-13 of 13
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Channel Estimation for SM Systems over Time-Varying Rayleigh Fading Channels
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2014)This paper is concerned with the challenging and timely problem of channel estimation for spatial modulated systems in the presence of time varying channels. Recently, estimation of channel state information for SM systems ... -
Channel estimation for spatial modulation orthogonal frequency division multiplexing systems
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2015-10-14)A combination of spatial modulation and orthogonal frequency division multiplexing (SM-OFDM) has been recently proposed for multicarrier systems while assuming the perfect channel state information (P-CSI) available at the ... -
Data detection based iterative channel estimation for coded SM-OFDM systems
Acar, Yusuf; Leblebici, Mehmet Merih; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47Th St, New York, Ny 10017 USA, 2016)The combination of spatial modulation (SM) and orthogonal frequency division multiplexing (OFDM) as SM-OFDM is a recently proposed efficient modulation scheme with exploiting the index of transmit antenna to convey information ... -
Generalised prefix for space-time block-coded orthogonal frequency division multiplexing wireless systems over correlated multiple-input multiple-output channels
Yıldız, Hakan; Acar, Yusuf; Cooklev, Todor; Doğan, Hakan (Inst Engineering Technology-Iet, Michael Faraday House Sıx Hılls Way Stevenage, Hertford Sg1 2Ay, England, 2014-06-12)Space-time block coding (STBC) orthogonal frequency division multiplexing (OFDM) is known to improve the reliability of broadband communication over wireless links. However, this technique suffers from a performance loss ... -
Generalized Prefix Approach for Alamouti Coded OFDM Systems over Gaussian Channels Correlated in Space
Acar, Yusuf; Yıldız, Hakan; Cooklev, Todor; Doğan, Hakan (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2014)In this ivorkt, generalized frelix (GP) lbr space time block coded orthogonal frequency division multiplexing (STBC-OFDM) systems is considered in the presence of correlated channel. The 2x2 STBC case, in practice, lead ... -
High-Performance Mimo Ofdm Wireless Systems With Generalized Prefix
Acar, Yusuf; Yıldız, Hakan; Cooklev, Todor; Doğan, Hakan (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)Consumers require increasing data rates and therefore it is important to develop techniques that increase the spectrum efficiency. MIMO OFDM is a fundamental technology for high data rate wireless systems. Correlation among ... -
Interpolation based pilot-aided channel estimation for STBC spatial modulation and performance analysis under imperfect CSI
Acar, Yusuf; Doğan, Hakan; Başar, Ertuğrul; Panayırcı, Erdal (INST Engineering Technology-Iet, Michael Faraday House Six Hills Way Stevenage, Hertford Sg1 2Ay, England, 2016-09-20)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 For Spatial Modulation Systems Over Fast Fading Channels
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 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. ... -
On channel estimation for spatial modulated systems over time-varying channels
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (Academic Press Inc Elsevier Science, 525 B St, Ste 1900, San Diego, Ca 92101-4495 USA, 2015-02)Spatial Modulation (SM) has been proposed recently for multiple-input multiple-output (MIMO) systems to cope with the interchannel interference and to reduce the detection complexity as compared to the conventional MIMO ... -
Performance Improvement for Correlated 4x4 MIMO-OFDM Systems by Generalized Prefix Approach
Acar, Yusuf; Cooklev, Todor; Doğan, Hakan; Yıldız, Hakan (IEEE, 345 E 47Th St, New York, Ny 10017 Usa, 2013)Antenna correlation limits the multiplexing gain achieved by practical MIMO-OFDM systems and degrades the performance significantly. Recently, investigations are focused to reduce the antenna correlation by the designing ... -
Pilot symbol aided channel estimation for spatial modulation-OFDM systems and its performance analysis with different types of interpolations
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (Springer, 233 Spring St, New York, Ny 10013 USA, 2017-06)Spatial modulation orthogonal frequency division multiplexing (SM-OFDM) system has been recently proposed as an alternative for multiple-input multiple-output (MIMO)-OFDM systems to increase spectral efficiency by keeping ... -
Pilot symbol assisted channel estimation for 4x4 space time block coded spatial modulation systems
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47th St, New York, Ny 10017 USA, 2015)Recently, spatial modulation (SM) and space-time block coding (STBC) are combined to take advantage of the benefits of both while avoiding their drawbacks for multiple-input and multiple-output (MIMO) systems. The pioneering ... -
Spline Based Channel Estimation for STBC-SM Systems over Fast-Varying Rician Fading Channels
Acar, Yusuf; Doğan, Hakan; Panayırcı, Erdal (IEEE, 345 E 47Th St, New York, Ny 10017 USA, 2015-05-16)In the STBC-SM systems, the information is carried both by STBC symbols and indices of the transmit antennas from which these symbols are transmitted. Channel estimation is a critical process at the receiver during the ...