John Baghous, and Mohamed Khaled Chahine

Evaluating Data Transmission Performance in 5G mmWave Networks using Multi-Layer Transmission and MIMO Technology 

The transition from 4G to 5G networks was necessitated by fundamental limitations in spectral efficiency and data capacity inherent to the existing framework. Fifthgeneration (5G) systems address these constraints by capitalizing on key enabling technologies, such as mmWave spectrum, multiple-input multiple- output (MIMO), massive MIMO (mMIMO), beamforming (BF) or Precoding. This paper investigates a multi-layer transmission scheme employing MIMO with Precoding (SVD) as a cooperative technique to enhance downlink (DL) data transmission performance in an enhanced mobile broadband (eMBB) scenario. The study operates within the standard 5G mmWave frequency band (FR2 at 40 GHz). We differentiate between key performance metrics: the user-experienced data rate (or throughput) Measured at the Receiver (Rx) and the peak theoretical data rate (or Bit Rate) Measured at the Transmitter (Tx). Simulation results, conducted using MATLAB, demonstrate that the proposed approach significantly improves both the achievable throughput and spectral efficiency within a fixed bandwidth. Throughput is evaluated in absolute terms (Mbps) and as a normalized percentage of the peak theoretical data rate (Bit Rate). The core of this study examines the impact of the number of spatial data streamng layers on a 5G-NR system performance. While increasing the transmission layers enhances the potential peak data rate at the transmitter, it concurrently elevates the bit error rate (BER) at the receiver, ultimately degrading the net throughput. This underscores the necessity for advanced receiver-side technologies, such as MIMO processing, to counteract high-path loss and other impairments prevalent at mmWave frequencies. The results confirm that augmenting the number of antennas in the MIMO configuration effectively mitigates this limitation. It improves the overall throughput and reduces the received BER by enhancing spatial diversity and signal recovery capabilities.

Reference:

DOI: 10.36244/ICJ.2026.1.9

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Please cite this paper the following way:

John Baghous, and Mohamed Khaled Chahine, "Evaluating Data Transmission Performance in 5G mmWave Networks using Multi-Layer Transmission and MIMO Technology", Infocommunications Journal, Vol. XVIII, No 1, March 2026, pp. 79-89., https://doi.org/10.36244/ICJ.2026.1.9