6 papers · 1 filter
Bessel Beam Optimization for Near-Field THz Communications under UE Location Uncertainty
Aditya Jolly, Vitaly Petrov, Gábor Fodor +1
To achieve the desired coverage and capacity levels, future terahertz (THz) wireless systems are envisioned to utilize extremely large antenna arrays. At THz frequencies, the combi…
Unexpected Far-Near-Far Transition in Mobile Near Field Terahertz Communications
Peng Zhang, Hanmei Yuan, Zhe Wang +2
At THz frequencies, the radiative near-field distance can be sufficiently large to matter in real deployments. Existing near-field formulas are often understood in a simple way: as…
Near-field Boundary Distance in mmWave and THz Communications with Misaligned Antenna Arrays
Peng Zhang, Vitaly Petrov, Emil Björnson
Wireless communications in the millimeter wave (mmWave) and terahertz (THz) spectrum allow harnessing large frequency bands, thus achieving ultra-high data rates. However, the inhe…
Performance Evaluation of Movable Antenna Arrays in Wideband Multi-User MIMO Systems
Amna Irshad, Emil Björnson, Alva Kosasih +1
Future wireless networks are expected to support increasingly high data rates and user densities, motivating advanced multi-antenna architectures capable of adapting to dynamic pro…
Statistics Approximation-Enabled Distributed Beamforming for Cell-Free Massive MIMO
Zhe Wang, Emil Björnson, Jiayi Zhang +3
We study a distributed beamforming approach for cell-free massive multiple-input multiple-output networks, referred to as Global Statistics & Local Instantaneous information-based…
Pre-Optimized Irregular Arrays versus Moveable Antennas in Multi-User MIMO Systems
Amna Irshad, Alva Kosasih, Vitaly Petrov +1
Massive multiple-input multiple-output (MIMO) systems exploit the spatial diversity achieved with an array of many antennas to perform spatial multiplexing of many users. Similar p…