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- Title
Analytical Framework of CP-Free Multiuser OFDM System for Coordinated Multi-Point at mmWave.
- Authors
Sadique, Joarder Jafor; Sabuj, Saifur Rahman; Ullah, Shaikh Enayet; Hossain, Md. Akbar; Raad, Raad; Islam, Md. Rabiul; Kouzani, Abbas Z.; Mahmud, M. A. Parvez
- 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.
- Subjects
MULTIUSER computer systems; WIRELESS communications; FORWARD error correction; BIT error rate; HADAMARD matrices; CHANNEL coding; OPTICAL communications
- Publication
Applied Sciences (2076-3417), 2021, Vol 11, Issue 16, p7605
- ISSN
2076-3417
- Publication type
Article
- DOI
10.3390/app11167605