Browsing by Author "Şahin, Alphan"
Now showing items 1-7 of 7
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Joint time-frequency alignment for PAPR and OOBE suppression of OFDM-based waveforms
Ankaralı, Zekeriyya Esat; Şahin, Alphan; Arslan, Hüseyin (IEEE-Inst Electrical Electronics Engineers Inc, 2017)Orthogonal frequency division multiplexing (OFDM) waveform has been adopted by many wireless standards due to its numerous advantages. However, OFDM symbols have two critical drawbacks: high out-of-band emission (OOBE) and ... -
N-continuous OFDM with CP alignment
Güvenkaya, Ertuǧrul; Şahin, Alphan; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers, 2015)In this paper, we propose an out-of-band (OOB) reduction method which incorporates with multipath channel and N-continuous OFDM structure. By exploiting the inevitable guard periods between OFDM symbols, i.e., cyclic prefix ... -
Partially overlapping tones for uncoordinated networks
Şahin, Alphan; Bala, Erdem; Güvenç, İsmail; Yang, Rui; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers, 2014)In an uncoordinated network, the link-level performance of a wireless receiver might degrade significantly due to the interference from other transmitters that share the same spectrum. As a solution, in this study, the ... -
Static cyclic prefix alignment for OFDM-based waveforms
Ankaralı, Zekeriyya Esat; Şahin, Alphan; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2016)The cyclic prefix (CP) alignment is an appealing technique for achieving multiple goals such as peak-to-average power ratio (PAPR) reduction, out-of-band (OOB) leakage suppression, and physical layer (PHY) security. It ... -
Suppressing alignment: An approach for out-of-band interference reduction in OFDM systems
Tom, Anas; Şahin, Alphan; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers, 2015)In this work, we introduce a novel approach, called suppressing alignment, to reduce the out-of-band (OOB) interference of orthogonal frequency division multiplexing (OFDM) systems. Suppressing alignment exploits the ... -
Suppressing alignment: Joint PAPR and out-of-band power leakage reduction for OFDM-based systems
Tom, Anas; Şahin, Alphan; Arslan, Hüseyin (Ieee-Inst Electrical Electronics Engineers Inc, 2016)Orthogonal frequency division multiplexing (OFDM) inherently suffers from two major drawbacks: high out-of-band (OOB) power leakage and high peak-to-average power ratio (PAPR). This paper proposes a novel approach called ... -
A windowing technique for optimal time-frequency concentration and aci rejection in ofdm-based systems
Güvenkaya, Ertuǧrul; Şahin, Alphan; Bala, Erdem; Yang, Rui; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers, 2015)In this paper, we introduce a windowing technique, which provides optimal time-frequency containment and maximal adjacent channel interference (ACI) rejection for orthogonal frequency-division multiplexing (OFDM)-based ...
