In this paper, we focus on multi-user random access in the LEO satellite communication system, where multiple users with identical pilot sequences will ...
Abstract—In low-earth orbit (LEO) satellite communications, it is difficult to obtain accurate channel estimation results in the.
Oct 6, 2024 · This paper introduces a Compressed Sensing (CS) estimation scheme for Orthogonal Time Frequency Space (OTFS) channels with sparse multipath. The ...
Abstract—This paper considers the joint channel estimation and device activity detection in the grant-free random access systems, where a large number of ...
Aug 3, 2022 · This paper considers the joint channel estimation and device activity detection in the grant-free random access systems.
This paper investigates joint device identification, channel estimation, and symbol detection for cooperative multi-satellite-enhanced random access, ...
Overview of OTFS Based Channel Estimation Techniques in LEO Satellite Communication ... Orthogonal Time Frequency Space (OTFS) modulation for millimeter-wave ...
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Nov 15, 2024 · Abstract—This paper investigates joint device identifica- tion, channel estimation, and symbol detection for cooperative.
This paper investigates joint device identification, channel estimation, and symbol detection for cooperative multi-satellite-enhanced random access, where ...
Apr 23, 2024 · In this paper, to catch the channel sparsity in the DD domain, two-dimensional (2D) orthogonal matching pursuit (OMP) algorithm is proposed.