Analytical Framework of CP-Free Multiuser OFDM System for Coordinated Multi-Point at mmWave
Source abstract
Abstract
In this paper, a coordinated multipoint joint transmission (CoMP-JT) framework at mmWave for a cyclic prefix (CP)-free multiuser OFDM wireless communication system is developed and analyzed. The aim is to provide high-quality service to cell-edge users; otherwise, the cell-users would suffer from significant signal degradation due to undesired interference. The impact of complex Hadamard transform with block diagonalization channel precoding for multiuser interference reduction and designed subcarrier mapping for out-of-band (OOB) reduction are investigated. In addition, the paper studied the input back-off-aided high-power amplifier for peak-to-average power ratio (PAPR) reduction and forward error correction channel coding for improved bit error rate (BER) for cell-edge users at mmWave frequencies. Moreover, signal-to-interference-noise ratio and ergodic achievable rate are estimated both in the presence and absence of CoMP-JT-based transmission technique to verify their significance in terms of transmitted power. Numerical investigations showed an OOB reduction of 312 dB, PAPR reduction from 17.50 dB to 7.66 dB, and improved BER of 1×10−3 in 16-QAM for a signal-to-noise ratio of −6 dB. Hence, the simulation results demonstrated the effectiveness of the developed system.
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Research context
OpenAlex topics: PAPR reduction in OFDM · Advanced MIMO Systems Optimization · Power Line Communications and Noise
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Electrical and Electronic Engineering, Begum Rokeya University, Rangpur 5404, Bangladesh
Department of Electronic Engineering, Hanbat National University, Daejeon 300-010, Korea
Department of Electrical and Electronic Engineering, University of Rajshahi, Rajshahi 6000, Bangladesh
School of Digital Technologies, Manukau Institute of Technology, Auckland 0600, New Zealand
Faculty of Engineering and Information Sciences, University of Wollongong, Wollongong, NSW 2522, Australia
School of Engineering, Deakin University, Geelong, VIC 3216, Australia
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