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GLOBECOM 2020 - 2020 IEEE Global Communications Conference by Li, Muye (author);Zhang, Shun (author);Fan, Pingzhi (author);Dobre, Octavia A. (author) is a nonfiction available to read on EtoBox.
What is GLOBECOM 2020 - 2020 IEEE Global Communications Conference about?
This paper focuses on a new path division multiple access (PDMA) for both uplink (UL) and downlink (DL) massive multiple-input multiple-output network over a high mobility scenario, where the orthogonal time frequency space (OTFS) is adopted. First, the 3D UL channel model and the received signal model in the angle-delay-Doppler domain are studied. Then, along UL, we design a path scheduling algorithm to properly assign angle-domain resources at user sides. Correspondingly, the signals at desired grids within the 3D resource space of the base station are separately collected to implement the 3D channel estimation and maximal ratio combining-based data detection. Then, we construct a low-complexity beamforming scheme over the angle-delay-Domain domain to achieve interuser interference free DL communication. Simulation results are provided to demonstrate the validity of our proposed unified UL/DL PDMA scheme. Index Terms-Massive multiple-input multiple-output (MI-MO), orthogonal time frequency space, angle-delay-Doppler, path division multiple access.
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Common subject areas: history, science, philosophy, social sciences.
- Author
- Li, Muye (author);Zhang, Shun (author);Fan, Pingzhi (author);Dobre, Octavia A. (author)
- Publisher
- IEEE
- Published
- 2020
- Language
- EN
- Category
- nonfiction