158 citations · 438 across the 70 of their papers we have counts for
14 papers · 1 filter
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…
Impact of Random Receiver Orientation on Visible Light Communications Channel
Yusuf Said Eroglu, Yavuz Yapici, Ismail Guvenc
Visible Light Communications (VLC) has been studied thoroughly in recent years as an alternative or complementary technology to radio frequency communications. The reliability of V…
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…
Sparsity-Aware Joint Frame Synchronization and Channel Estimation: Algorithm and USRP Implementation
Ozgur Ozdemir, Ridha Hamila, Naofal Al-Dhahir +1
Conventional correlation-based frame synchronization techniques can suffer significant performance degradation over multi-path frequency-selective channels. As a remedy, in this pa…
System-Level Performance of mmWave Cellular Networks for Urban Micro Environments
Nadisanka Rupasinghe, Yuichi Kakishima, Ismail Guvenc
In this paper, we investigate the propagation coupling loss (captures all sources of attenuation between serving cell and mobile station (MS)) and geometry metric (GM) (downlink av…
A Software-Defined Multi-Element VLC Architecture
Sifat Ibne Mushfique, Prabath Palathingal, Yusuf Said Eroglu +3
In the modern era of radio frequency (RF) spectrum crunch, visible light communication (VLC) is a recent and promising alternative technology that operates at the visible light spe…
Exploiting LTE-Advanced HetNets and FeICIC for UAV-assisted Public Safety Communications
Abhaykumar Kumbhar, Ismail Guvenc, Simran Singh +1
Ensuring ubiquitous mission-critical public safety communications (PSC) to all the first responders in the public safety network (PSN) is crucial at an emergency site. Recently, th…
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…
Ultra-wideband Channel Modeling for Hurricanes
Wahab Khawaja, Ismail Guvenc, Arindam Chowdhury
Maintaining communications during major hurricanes is critically important for public safety operations by first responders. This requires accurate knowledge of the propagation cha…
UAV Assisted Public Safety Communications with LTE-Advanced HetNets and FeICIC
Abhaykumar Kumbhar, Simran Singh, Ismail Guvenc
Establishing a reliable communication infrastructure at an emergency site is a crucial task for mission-critical and real-time public safety communications (PSC). To this end, use…
Indoor UAV Navigation to a Rayleigh Fading Source Using Q-Learning
Bekir Sait Ciftler, Adem Tuncer, Ismail Guvenc
Unmanned aerial vehicles (UAVs) can be used to localize victims, deliver first-aid, and maintain wireless connectivity to victims and first responders during search/rescue and publ…
Occupancy Counting with Burst and Intermittent Signals in Smart Buildings
Bekir Sait Ciftler, Sener Dikmese, Ismail Guvenc +2
Zone-level occupancy counting is a critical technology for smart buildings and can be used for several applications such as building energy management, surveillance, and public saf…
IoT Localization for Bistatic Passive UHF RFID Systems with 3D Radiation Pattern
Bekir Sait Ciftler, Abdullah Kadri, Ismail Guvenc
Passive Radio-Frequency IDentification (RFID) systems carry critical importance for Internet of Things (IoT) applications due to their energy harvesting capabilities. RFID based po…