15 citations · 25 across the 24 of their papers we have counts for
17 papers · 1 filter
mmWave Channel Estimation via Approximate Message Passing with Side Information
Dror Baron, Cynthia Rush, Yavuz Yapici
This work considers millimeter-wave channel estimation in a setting where parameters of the underlying mmWave channels are varying dynamically over time and there is a single drift…
Max-Min Fair Beamforming for Cooperative Multigroup Multicasting with Rate-Splitting
Ahmet Zahid Yalcin, Yavuz Yapici
The demand of massive access to the same multimedia content at the same time is one major challenge for next-generation cellular networks in densely-packed urban areas. The content…
Multiuser Precoding for Sum-Rate Maximization in Relay-Aided mmWave Communications
Ahmet Zahid Yalcin, Yavuz Yapici
Relay-aided transmission is envisioned as a key strategy to combat severe path loss and link blockages emerging as unique challenges in millimeter-wave (mmWave) communications. Thi…
Physical Layer Security for NOMA Transmission in mmWave Drone Networks
Yavuz Yapici, Nadisanka Rupasinghe, Ismail Guvenc +2
The non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) transmission enable the unmanned aerial vehicle (UAV) assisted wireless networks to provide broadband connect…
Low-Resolution Limited-Feedback NOMA for mmWave Communications
Yavuz Yapici, Ismail Guvenc, Huaiyu Dai
The spectrum-efficient millimeter-wave (mmWave) communications has recently attracted much attention as a viable solution to spectrum crunch problem. In this work, we propose a nov…
NOMA for VLC Downlink Transmission with Random Receiver Orientation
Yavuz Yapici, Ismail Guvenc
Visible light communications (VLC) is an emerging technology with a promise of viable solution to spectrum crunch problem in conventional radio frequency (RF) bands. In this work,…
SLNR Based Precoding for One-Bit Quantized Massive MIMO in mmWave Communications
Yavuz Yapıcı, Sung Joon Maeng, İsmail Güvenç +2
Massive multiple-input multiple-output (MIMO) is a key technology for 5G wireless communications with a promise of significant capacity increase. The use of low-resolution data con…
Low-Complexity Adaptive Beam and Channel Tracking for Mobile mmWave Communications
Yavuz Yapici, Ismail Guvenc
In this paper, we study low-complexity algorithms for beam and channel tracking for millimeter-wave (mmWave) communications. In particular, the least mean squares (LMS) and bidirec…
Enhancing Physical Layer Security for NOMA Transmission in mmWave Drone Networks
Nadisanka Rupasinghe, Yavuz Yapici, Ismail Guvenc +2
Physical layer security (PLS) is critically important for emerging wireless communication networks to maintain the confidentiality of the information of legitimate users. In this p…
Adaptive Detection of Structured Signals in Low-Rank Interference
Philip Schniter, Evan Byrne
In this paper, we consider the problem of detecting the presence (or absence) of an unknown but structured signal from the space-time outputs of an array under strong, non-white in…
Comparison of Limited Feedback Schemes for NOMA Transmission in mmWave Drone Networks
Nadisanka Rupasinghe, Yavuz Yapici, Ismail Guvenc +1
Introducing non-orthogonal multiple access (NOMA) transmission to an unmanned aerial vehicle (UAV) based communication network is a promising solution to enhance its spectral effic…
Non-Orthogonal Multiple Access for Mobile VLC Networks with Random Receiver Orientation
Yavuz Yapici, Ismail Guvenc
We consider a downlink multiuser visible light communications (VLC) network where users randomly change their location and vertical orientation. The non-orthogonal multiple access…
Non-Orthogonal Multiple Access for mmWave Drone Networks with Limited Feedback
Nadisanka Rupasinghe, Yavuz Yapici, Ismail Guvenc +1
Unmanned aerial vehicle (UAV) base stations (BSs) can be a promising solution to provide connectivity and quality of service (QoS) guarantees during temporary events and after disa…
Non-Orthogonal Multiple Access for mmWave Drones with Multi-Antenna Transmission
Nadisanka Rupasinghe, Yavuz Yapici, Ismail Guvenc +1
Unmanned aerial vehicles (UAVs) can be deployed as aerial base stations (BSs) for rapid establishment of communication networks during temporary events and after disasters. Since U…
A MAP-Based Layered Detection Algorithm and Outage Analysis over MIMO Channels
Yavuz Yapici, Ismail Guvenc, Yuichi Kakishima
Efficient symbol detection algorithms carry critical importance for achieving the spatial multiplexing gains promised by multi-input multi-output (MIMO) systems. In this paper, we…
Multi-Element VLC Networks: LED Assignment, Power Control, and Optimum Combining
Yusuf Said Eroglu, Ismail Guvenc, Alphan Sahin +3
Visible light communications (VLC) is a promising technology to address the spectrum crunch problem in radio frequency (RF) networks. A major advantage of VLC networks is that they…
Impact of Angular Spread in Moderately Large MIMO Systems under Pilot Contamination
Nadisanka Rupasinghe, Yavuz Yapici, Jorge Iscar +1
Pilot contamination is known to be one of the main bottlenecks for massive multi-input multi-output (MIMO) networks. For moderately large antenna arrays (of importance to recent/em…