Browsing by Author "Tusha, Armed"
Now showing items 1-20 of 23
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Control of fractional delay effect for SC transmission in beyond 5G networks
Yılmaz, Talha; Tusha, Armed; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)Wireless networks beyond 5G are expected to support a wide range of applications and use cases, and single-carrier (SC) based wireless technologies have been considered in the literature as a suitable solution for ... -
Error performance enhancement and complexity reduction in OFDM systems via coordinate interleaving under practical impairments
Reşat, Mustafa Anıl; Tusha, Armed; Doğan Tusha, Seda; Özyurt, Serdar; Arslan, Hüseyin (Turkiye Klinikleri, 2024)In this work, subcarrier coordinate interleaving (CI) is implemented to orthogonal frequency division multiplexing (OFDM) systems with the aim of both enhancing the error performance and reducing the implementation complexity. ... -
Exploiting user diversity in OTFS transmission for beyond 5G wireless systems
Tusha, Armed; Althunibat, Saud; Hasna, Mazen O.; Qaraqe, Khalid; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)Orthogonal time frequency space (OTFS) modulation is a recent technology that offers a significant advantage on link reliability due to its strong delay-Doppler resilience. In classical cellular technology, overall system ... -
A hybrid downlink NOMA with OFDM and OFDM-IM for beyond 5G wireless networks
Tusha, Armed; Doğan, Seda; Arslan, Hüseyin (IEEE - Institute of Electrical and Electronics Engineers, Inc., 2020)In this paper, a hybrid power domain non-orthogonal multiple accessing (NOMA) scheme by the superposition of orthogonal frequency division multiple accessing (OFDM) and index modulated OFDM (OFDM-IM) technologies is presented ... -
Index modulation-aided IQ imbalance compensator for OTFS communications systems
Tusha, Armed; Dogan Tusha, Seda; Althunibat, Saud; Başar, Ertuğrul; Qaraqe, Khalid; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)Design of simple transceiver architectures is inevitable in order to provide low computational complexity, low power consumption and affordable cost in beyond 5G (B5G) wireless systems, but it results in hardware impairments ... -
Index modulation-based flexible waveform design
Tusha, Seda; Tusha, Armed; Başar, Ertuğrul; Arslan, Hüseyin (Institution of Engineering and Technology, 2020)The service limitations of conventional orthogonal frequency division multiplexing (OFDM)-based technologies have motivated academia and industry to seek for new solutions in order to support the emerging services and use ... -
Intelligent spectrum occupancy prediction for realistic measurements: GRU based approach
Tusha, Armed; Kaplan, Batuhan; Çırpan, Hakan Ali; Qaraqe, Khalid; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2022)Cognitive radio (CR) technology has always been a research hotspot in the wireless communications field as it has the potential to significantly improve system capacity at the cost of increased processing time and power ... -
Inter-numerology interference in OFDM-IM systems
Doğan Tusha, Seda; Tusha, Armed; Başar, Ertuğrul; Althunibat, Saud; Qaraqe, Khalid; Arslan, Hüseyin (Wiley, 2021)In 5G and beyond communication systems, distinct numerologies can coexist to serve diverse requirements for users and applications. However, the inter-numerology interference (INI) is a main challenge that significantly ... -
IQI mitigation for narrowband iot systems with OFDM-IM
Tusha, Armed; Doğan, Seda; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2018)The crucial aim for 5G narrowband Internet of Things (NB-IoT) is to support massive connectivity with wide coverage area, low power consumption, low hardware complexity, and low data rate. Direct conversion receiver (DCR) ... -
Low complex inter-doppler interference mitigation for OTFS systems via global receiver windowing
Tusha, Armed; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2023)Orthogonal time frequency space (OTFS) waveform has been considered as a potential candidate for affording a wide range of emerging communications and sensing applications in beyond 5G wireless technologies. OTFS takes ... -
Multidimensional index modulation for 5G and beyond wireless networks
Doğan Tusha, Seda; Tusha, Armed; Başar, Ertuğrul; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc, 2021)Index modulation (IM) provides a novel way for the transmission of additional data bits via the indices of the available transmit entities compared with classical communication schemes. This study examines the flexible ... -
NOMA with Index modulation for uplink URLLC through grant-free access
Doğan, Seda; Tusha, Armed; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2019)This paper proposes non-orthogonal sharing of available resources between latency-critical and latency-tolerant communication for fulfilling tight requirements of ultra-reliable low-latency communication (URLLC) as well ... -
Non-orthogonal radio access technologies
Tusha, Armed; Tusha, Seda; Arslan, Hüseyin (Institution of Engineering and Technology, 2020)The radio resource scarcity of classical orthogonal radio access-based technologies has encouraged academia and industry to search for a way out in order to support the exponential growth of data rate, system capacity, and ... -
OFDM with index modulation for asynchronous mMTC networks
Doğan, Seda; Tusha, Armed; Arslan, Hüseyin (MDPI, 2018)One of the critical missions for next-generation wireless communication systems is to fulfill the high demand for massive Machine-Type Communications (mMTC). In mMTC systems, a sporadic transmission is performed between ... -
OFDM with index modulation for narrowband iot and mmtc
Tusha, Armed (İstanbul Medipol Üniversitesi Fen Bilimleri Enstitüsü, 2018)The crucial aim for 5G narrowband Internet of Things (NB-IoT) is to support massive Machine-Type Communications (mMTC) with wide coverage area, low power consumption, low hardware complexity and low data rate. Direct ... -
Orthogonal time frequency space multiple access using index modulation
Doğan Tusha, Seda; Tusha, Armed; Althunibat, Saud; Qaraqe, Khalid (Institute of Electrical and Electronics Engineers Inc., 2023)Orthogonal time frequency space (OTFS) is a recent two-dimensional modulation technique utilizing delay-Doppler domain and nominated as a promising candidate waveform for beyond 5G communication systems. By leveraging both ... -
Performance analysis of frequency domain im schemes under CFO and IQ imbalance
Tusha, Armed; Doğan, Seda; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2019)Next generation of mobile networks is the key area of research with increasing demand for new applications and use cases. In order to satisfy the applications with high data rate, high reliability, and low latency, ... -
Performance analysis of OTFS under in-phase and quadrature imbalance at transmitter
Tusha, Armed; Doğan Tusha, Seda; Yılmaz, Ferkan; Althunibat, Saud; Qaraqe, Khalid; Arslan, Hüseyin (IEEE-Institute of Electrical and Electronics Engineers Inc., 2021)The influence of in-phase and quadrature (IQ) imbalance on the performance of orthogonal time frequency space (OTFS) transmission is investigated in this work. OTFS is a recent two-dimensional transmission scheme with ... -
Physical effect of in-phase and quadrature imbalance in delay-doppler domain
Tusha, Armed; Doğan Tusha, Seda; Yılmaz, Ferkan; Althunibat, Saud; Qaraqe, Khalid; Arslan, Hüseyin (Institute of Electrical and Electronics Engineers Inc., 2021)Orthogonal time frequency space (OTFS) technique is a recent two-dimensional (2-D) modulation aiming to exploit both time and frequency selectivity of doubly dispersive wireless channel, which significantly affects the ... -
Quantum laboratory setup for future wireless communication systems
Solaija, Muhammad Sohaib J.; Janjua, Muhammad Bilal; Afeef, Liza; Tusha, Armed; Duranay, Ahmet Enes; Arslan, Hüseyin; Hasekioǧlu, Orkun (American Institute of Physics Inc., 2019)Fifth generation of wireless communication envisages a diverse network that imposes stringent requirements regarding capacity, reliability, security, latency and seamless connectivity. These lofty goals have driven researchers ...
