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Keywords = gyre precoding

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22 pages, 14414 KB  
Article
Gyre Precoding and T-Transformation-Based GFDM System for UAV-Aided mMTC Network
by Joarder Jafor Sadique, Shaikh Enayet Ullah, Raad Raad, Md. Rabiul Islam, Md. Mahbubar Rahman, Abbas Z. Kouzani and M. A. Parvez Mahmud
Electronics 2021, 10(23), 2915; https://doi.org/10.3390/electronics10232915 - 25 Nov 2021
Viewed by 3089
Abstract
In this paper, an unmanned aerial vehicle (UAV)-aided multi-antenna configured downlink mmWave cooperative generalized frequency division multiplexing (GFDM) system is proposed. To provide physical layer security (PLS), a 3D controlled Lorenz mapping system is introduced. Furthermore, the combination of T-transformation spreading codes, walsh [...] Read more.
In this paper, an unmanned aerial vehicle (UAV)-aided multi-antenna configured downlink mmWave cooperative generalized frequency division multiplexing (GFDM) system is proposed. To provide physical layer security (PLS), a 3D controlled Lorenz mapping system is introduced. Furthermore, the combination of T-transformation spreading codes, walsh Hadamard transform, and discrete Fourier transform (DFT) techniques are integrated with a novel linear multi-user multiple-input multiple-output (MU-MIMO) gyre precoding (GP) for multi-user interference reduction. Furthermore, concatenated channel-coding with multi-user beamforming weighting-aided maximum-likelihood and zero forcing (ZF) signal detection schemes for an improved bit error rate (BER) are also used. The system is then simulated with a single base station (BS), eight massive machine-type communications (mMTC) users, and two UAV relay stations (RSs). Numerical results reveal the robustness of the proposed system in terms of PLS and an achievable ergodic rate with signal-to-interference-plus-noise ratio (SINR) under the implementation of T-transformation scheme. By incorporating the 3D mobility model, brownian perturbations of the UAVs are also analyzed. An out-of-band (OOB) reduction of 320 dB with an improved BER of 1×104 in 16-QAM for a signal-to-noise ratio, Eb/N0, of 20 dB is achieved. Full article
(This article belongs to the Special Issue Unmanned Aerial Vehicle (UAV) Communication and Networking)
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