Deakin University
Browse
mahmud-analyticalframeworkof-2021.pdf (5.88 MB)

Analytical framework of CP-free multiuser OFDM system for coordinated multi-point at mmwave

Download (5.88 MB)
Version 2 2024-06-06, 10:16
Version 1 2021-08-31, 08:35
journal contribution
posted on 2024-06-06, 10:16 authored by JJ Sadique, SR Sabuj, SE Ullah, MA Hossain, R Raad, MR Islam, Abbas KouzaniAbbas Kouzani, MAP Mahmud
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.

History

Journal

Applied Sciences (Switzerland)

Volume

11

Article number

ARTN 7605

Pagination

1 - 26

Location

Basel, Switzerland

Open access

  • Yes

eISSN

2076-3417

Language

English

Publication classification

C1 Refereed article in a scholarly journal

Issue

16

Publisher

MDPI