10 papers
Boosting Spectral Efficiency via Spatial Path Index Modulation in RIS-Aided mMIMO
Ahmet M. Elbir, Abdulkadir Celik, Asmaa Abdallah +1
Next generation wireless networks focus on improving spectral efficiency (SE) while reducing power consumption and hardware cost. Reconfigurable intelligent surfaces (RISs) offer a…
A Survey of Deep Learning Architectures for Intelligent Reflecting Surfaces
Ahmet M. Elbir, Kumar Vijay Mishra
Intelligent reflecting surfaces (IRSs) have recently received significant attention for 6G wireless communications as they enable the control of the wireless propagation environmen…
Comprehensive Analysis of Behavioral Hardware Impairments in Cell-Free Massive MIMO-OFDM Uplink: Centralized Operation
Ãzlem TuÄfe Demir, Muhammed Selman Somuncu, Ahmet M. Elbir +1
Cell-free massive MIMO is a key 6G technology, offering superior spectral and energy efficiency. However, its dense deployment of low-cost access points (APs) makes hardware impair…
A New Wireless Image Transmission System Using Code Index Modulation and Image Enhancement for High-Rate Next Generation Networks
Burak Ahmet Ozden, Erdogan Aydin, Ahmet Elbir +1
With the development of wireless network technologies, the wireless image transmission area has become prominent. The need for high resolution, data traffic density, widespread use…
Near-Field Signal Processing: Unleashing the Power of Proximity
Ahmet M. Elbir, Ãzlem TuÄfe Demir, Kumar Vijay Mishra +2
After nearly a century of specialized applications in optics, remote sensing, and acoustics, the near-field (NF) electromagnetic propagation zone is experiencing a resurgence in re…
Hybrid Beamforming for Integrated Sensing and Communications With Low Resolution DACs
Ahmet M. Elbir, Abdulkadir Celik, Ahmed M. Eltawil
Integrated sensing and communications (ISAC) has emerged as a means to efficiently utilize spectrum and thereby save cost and power. At the higher end of the spectrum, ISAC systems…