Core Concepts
Ultra-massive antenna arrays and hybrid precoding algorithms enable high-accuracy sensing and Terabit-per-second data rates in Terahertz ISAC systems.
Abstract
This article explores the design of time-frequency-space transmit systems for Terahertz Integrated Sensing and Communication (THz ISAC). It introduces novel hybrid precoding algorithms for ISAC systems, focusing on ultra-massive MIMO and multi-carrier modulation. The proposed algorithms achieve centi-degree-level angle estimation accuracy and millimeter-level range estimation accuracy, surpassing existing methods in the millimeter-wave band. The article addresses challenges in path loss compensation, beamforming, and sensing beam management for THz ISAC systems. It also discusses parameter estimation algorithms for angle, range, and velocity estimation, along with an ISI- and ICI-tackled sensing algorithm to refine sensing capabilities.
Structure:
Introduction to THz ISAC
Challenges in THz ISAC Design
Hybrid Precoding Algorithms
Sensing Parameter Estimation Algorithms
ISI- and ICI-Tackled Sensing Algorithm
Stats
Terabit-per-second (Tbps) data transmission rate
Centi-degree-level angle estimation accuracy
Millimeter-level range estimation accuracy
Quotes
"Ultra-massive antenna arrays with directional beamforming compensate for severe path loss in the THz band."
"Proposed algorithms achieve centi-degree-level angle estimation accuracy and millimeter-level range estimation accuracy."