no code implementations • 25 Apr 2024 • Mahmoud Raeisi, Aymen Khaleel, Mehmet Cagri Ilter, Majid Gerami, Ertugrul Basar
Integrating reconfigurable intelligent surfaces (RISs) in emerging communication systems is a fast-growing research field that has recently earned much attention.
no code implementations • 19 Feb 2024 • Aymen Khaleel, Recep Vural, Mehmet Cagri Ilter, Majid Gerami, Ertugrul Basar
Reconfigurable intelligent surface (RIS)-empowered communication is one of the promising physical layer enabling technologies for the sixth generation (6G) wireless networks due to their unprecedented capabilities in shaping the wireless communication environment.
no code implementations • 9 Jan 2024 • Ali Tugberk Dogukan, Emre Arslan, Ertugrul Basar
Reconfigurable intelligent surfaces (RISs) bring great potential to the advancement of 6G and beyond wireless communication technologies.
no code implementations • 16 Nov 2023 • Mahmoud Raeisi, Ibrahim Yildirim, Mehmet Cagri Ilter, Majid Gerami, Ertugrul Basar
This paper presents a promising design concept for reconfigurable intelligent surfaces (RISs), named plug-in RIS, wherein the RIS is plugged into an appropriate position in the environment, adjusted once according to the location of both base station and blocked region, and operates with fixed beams to enhance the system performance.
no code implementations • 21 Sep 2023 • M. Ertug Pihtili, Mehmet C. Ilter, Ertugrul Basar, Risto Wichman, Jyri Hämäläinen
IH leverages existing WPT mechanisms for data communication by incorporating index modulation (IM) techniques on top of the existing far-field power transfer mechanism.
no code implementations • 15 Aug 2023 • Emre Arslan, Fatih Kilinc, Ertugrul Basar, Huseyin Arslan
The march towards 6G is accelerating and future wireless network architectures require enhanced performance along with significant coverage especially, to combat impairments on account of the wireless channel.
no code implementations • 10 Aug 2023 • Enes Koktas, Recep A. Tasci, Ibrahim Yildirim, Ertugrul Basar
Space exploration has witnessed a steady increase since the 1960s, with Mars playing a significant role in our quest for further knowledge.
no code implementations • 27 Jul 2023 • Sefa Kayraklık, Ibrahim Yildirim, Ertugrul Basar, Ibrahim Hokelek, Ali Gorcin
This paper presents reconfigurable intelligent surface (RIS)-aided deep learning (DL)-based spectrum sensing for next-generation cognitive radios.
no code implementations • 10 Apr 2023 • Aymen Khaleel, Ertugrul Basar
Reconfigurable intelligent surface (RIS)-empowered communication is an emerging technology that has recently received growing attention as a potential candidate for next-generation wireless communications.
no code implementations • 4 Apr 2023 • Mahmoud Raeisi, Asil Koc, Ibrahim Yildirim, Ertugrul Basar, Tho Le-Ngoc
By analyzing the effects of array characteristics such as radiation pattern, array directivity, half-power beam width (HPBW), and radiation side lobes on bit error rate (BER) performance, we reveal that URA achieves better error performance than its counterparts in a CIM-enabled mmWave system.
no code implementations • 8 Feb 2023 • Mahmoud Raeisi, Asil Koc, Ibrahim Yildirim, Ertugrul Basar, Tho Le-Ngoc
In this paper, we propose a transmission mechanism for a reconfigurable intelligent surface (RIS)-assisted millimeter wave (mmWave) system based on cluster index modulation (CIM), named best-gain optimized cluster selection CIM (BGCS-CIM).
no code implementations • 14 Dec 2022 • Samed Keşir, Sefa Kayraklık, İbrahim Hökelek, Ali Emre Pusane, Ertugrul Basar, Ali Görçin
There have been recently many studies demonstrating that the performance of wireless communication systems can be significantly improved by a reconfigurable intelligent surface (RIS), which is an attractive technology due to its low power requirement and low complexity.
no code implementations • 25 Nov 2022 • Enes Koktas, Ertugrul Basar
Studies featuring three-dimensional (3D) channel modeling simulations on the Martian surface are also reviewed.
no code implementations • 14 Nov 2022 • Sefa Kayraklık, Ibrahim Yildirim, Yarkın Gevez, Ertugrul Basar, Ali Görçin
Reconfigurable intelligent surface (RIS)-empowered communications represent exciting prospects as one of the promising technologies capable of meeting the requirements of the sixth generation networks such as low-latency, reliability, and dense connectivity.
no code implementations • 31 Oct 2022 • Kevin Weinberger, Robert-Jeron Reifert, Aydin Sezgin, Ertugrul Basar
More and more applications that require high reliability and fault tolerance are realized with wireless network architectures and thus ultimately rely on the wireless channels, which can be subject to impairments and blockages.
no code implementations • 23 Jul 2022 • Recep Akif Tasci, Fatih Kilinc, Abdulkadir Celik, Asmaa Abdallah, Ahmed M. Eltawil, Ertugrul Basar
This paper introduces a reconfigurable intelligent surface (RIS)-assisted grant-free non-orthogonal multiple-access (GF-NOMA) scheme.
no code implementations • 17 Jan 2022 • Ibrahim Yildirim, Ertugrul Basar
One of the most critical aspects of enabling next-generation wireless technologies is developing an accurate and consistent channel model to be validated effectively with the help of real-world measurements.
no code implementations • 18 Nov 2021 • Recep A. Tasci, Fatih Kilinc, Ertugrul Basar, George C. Alexandropoulos
Reconfigurable intelligent surface (RIS)-assisted communication have recently attracted the attention of the wireless communication community as a potential candidate for the next $6$-th generation (6G) of wireless networks.
no code implementations • 15 Jun 2021 • Emre Arslan, Ibrahim Yildirim, Fatih Kilinc, Ertugrul Basar
Specifically, with the aid of an RIS, the frequency-selective channel from the transmitter to the RIS is transformed to a frequency-flat channel through elimination of inter-symbol interference (ISI) components at the receiver.
no code implementations • 3 May 2021 • Ertugrul Basar, H. Vincent Poor
Signal processing and communication communities have witnessed the rise of many exciting communication technologies in recent years.
no code implementations • 29 Mar 2021 • Mahmoud Aldababsa, Ertugrul Basar
In this paper, outage probability (OP) of a joint transmit and receive antenna selection (JTRAS) scheme is analyzed in multiple-input multiple-output non orthogonal multiple access based downlink energy harvesting (EH) relaying networks.
no code implementations • 22 Jan 2021 • Sultan Aldirmaz-Colak, Erdogan Aydin, Yasin Celik, Yusuf Acar, Ertugrul Basar
Emerging systems such as Internet-of-things (IoT) and machine-to-machine (M2M) communications have strict requirements on the power consumption of used equipments and associated complexity in the transceiver design.
no code implementations • 27 Nov 2020 • Yue Xiu, Jun Zhao, Ertugrul Basar, Marco Di Renzo, Wei Sun, Guan Gui, Ning Wei
In this letter, we investigate the uplink of a reconfigurable intelligent surface (RIS)-aided millimeter-wave (mmWave) multi-user system.
no code implementations • 22 Nov 2020 • Aymen Khaleel, Ertugrul Basar
Furthermore, we formulate an RIS partitioning optimization problem to slice the RIS elements between the users such that the user fairness is maximized.
no code implementations • 2 Oct 2020 • Seda Dogan-Tusha, Armed Tusha, Ertugrul Basar, Huseyin Arslan
This study examines the flexible utilization of existing IM techniques in a comprehensive manner to satisfy the challenging and diverse requirements of 5G and beyond services.
no code implementations • 5 Jun 2020 • Zehra Yigit, Ertugrul Basar, Ibrahim Altunbas
Reconfigurable intelligent surface (RIS)-based transmission technology offers a promising solution to enhance wireless communication performance cost-effectively through properly adjusting the parameters of a large number of passive reflecting elements.
no code implementations • 5 Apr 2020 • Aymen Khaleel, Ertugrul Basar
Reconfigurable intelligent surface (RIS)-assisted communications appear as a promising candidate for future wireless systems due to its attractive advantages in terms of implementation cost and end-to-end system performance.
no code implementations • 9 Dec 2019 • Ertugrul Basar
In this paper, the well-known multipath fading phenomenon is revisited in mobile wireless communication systems, and novel and unique solutions are introduced from the perspective of RISs.