4 papers
Antenna Selection in Switch-Based MIMO Arrays via DOA threshold region Approximation
Hui Chen, Tarig Ballal, Mohammed E. Eltayeb +1
Direction-of-arrival (DOA) information is vital for multiple-input-multiple-output (MIMO) systems to complete localization and beamforming tasks. Switched antenna arrays have recen…
TeraMIMO: A Channel Simulator for Wideband Ultra-Massive MIMO Terahertz Communications
Simon Tarboush, Hadi Sarieddeen, Hui Chen +4
Following recent advances in terahertz (THz) technology, there is a consensus on the crucial role of THz communications in the next generation of wireless systems. Aiming at cataly…
DOA Estimation with Non-Uniform Linear Arrays: A Phase-Difference Projection Approach
Hui Chen, Tarig Ballal, Tareq Y. Al-Naffouri
Phase wrapping is a major problem in direction-of-arrival (DOA) estimation using phase-difference observations. For a sensor pair with an inter-sensor spacing greater than half of…
A Derivation of Identifiable Condition for Non-Uniform Linear Array DOA Estimation
Hui Chen, Tarig Ballal, Tareq Y. Al-Naffouri
Phase ambiguity happens in uniform linear arrays (ULAs) when the sensor distance is greater than . This problem in direction of arrival (DOA) estimation and can be solved by d…