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Simultaneous Data Communication and Channel Estimation in Multi-User\n Full Duplex MIMO Systems

2020/11/06 by Md Atiqul Islam, George C. Alexandropoulos, Islam, Md Atiqul +3
Engineering · #FOS: Computer and information sciences #Full-Duplex Wireless Communications #Information Theory (cs.IT)

paper · pdf · doi:10.48550/arxiv.2011.04286

openalex publication_date 2020/11/06 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28

Abstract

In this paper, we study Simultaneous Communication of Data and Control (SCDC)\ninformation signals in Full Duplex (FD) Multiple-Input Multiple-Output (MIMO)\nwireless systems. In particular, considering an FD MIMO base station serving\nmultiple single-antenna FD users, a novel multi-user communication scheme for\nsimultaneous DownLink (DL) beamformed data transmission and UpLink (UL)\npilot-assisted channel estimation is presented. Capitalizing on a recent FD\nMIMO hardware architecture with reduced complexity self-interference analog\ncancellation, we jointly design the base station's transmit and receive\nbeamforming matrices as well as the settings for the multiple analog taps and\nthe digital SI canceller with the objective to maximize the DL sum rate. Our\nsimulation results showcase that the proposed approach outperforms its\nconventional half duplex counterpart with 50% reduction in hardware complexity\ncompared to the latest FD-based SCDC schemes.\n

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