Performance Analysis of Massive MIMO-OFDM System Incorporated with Various Transforms for Image Communication in 5G Systems

Abstract

Modern-day applications of fifth-generation (5G) and sixth-generation (6G) systems require fast, efficient, and robust transmission of multimedia information over wireless communication medium for both mobile and fixed users. The hybrid amalgamation of massive multiple input multiple output (mMIMO) and orthogonal frequency division multiplexing (OFDM) proves to be an impressive methodology for fulfilling the needs of 5G and 6G users. In this paper, the performance of the hybrid combination of massive MIMO and OFDM schemes augmented with fast Fourier transform (FFT), fractional Fourier transform (FrFT) or discrete wavelet transform (DWT) is evaluated to study their potential for reliable image communication. The analysis is carried over the Rayleigh fading channels and M-ary phase-shift keying (M-PSK) modulation schemes. The parameters used in our analysis to assess the outcome of proposed versions of OFDM-mMIMO include signal-to-noise ratio (SNR) vs. peak signal-to-noise ratio (PSNR) and SNR vs. structural similarity index measure (SSIM) at the receiver. Our results indicate that massive MIMO systems incorporating FrFT and DWT can lead to higher PSNR and SSIM values for a given SNR and number of users, when compared with in contrast to FFT-based massive MIMO-OFDM systems under the same conditions.

Performance assessment of STBC-OFDM system using different transforms over LOS and NLOS channel

“…Figure 1 depicts the block diagram of the conventional OFDM system, the only different here is that in addition to Fourier transforms, FrFT and DWT transforms are also shown both at transmitter side as well as receiver side [1]. At the transmitters side, the input data with first encoded by source coding technique which is then forwarded to the channel encoding block.…”

“…Nowadays a lot of communication systems and standards like long-term evolution (LTE), long-term evolution advanced (LTE-A), wireless fidelity (WiFi), digital video broadcasting (DVB), and digital audio broadcasting (DAB) employ multicarrier modulation (MCM) techniques, due to its ability to overcome the dangerous deteriorate in wireless multipath communication channels [1]. When it comes to the diverse MCM techniques, OFDM is the most popular technique among all for realizing an efficient and robust communication over mobile wireless telecommunication systems.…”

Unjuk Kerja Sistem Ofdm Dengan Menggunakan Algoritma VFFT Pada Kanal Awgn

“…Orthogonal Frequency Division Multiplexing (OFDM), salah satu teknologi dibalik layanan jaringan generasi keempat dan kelima untuk menyediakan akses data berkecepatan tinggi ke pengguna akhir. OFDM telah banyak digunakan oleh berbagai standar popular seperti LTE dan WLAN [3].…”

“…Prinsip kerja sistem OFDM, yakni membagi aliran data yang berkecepatan tinggi menjadi sederetan aliran data yang berkecepatan rendah dan setiap aliran membutuhkan bandwidth yang jauh lebih rendah dari bandwidth koheren channel sehingga dapat membuat informasi dalam OFDM tahan terhadap frekuensi selective fading [3]. Secara sederhana diagram blok sistem OFDM ditunjukkan Gambar 1 yang terdiri dari.…”

Efficient Non-Linear Equalization Scheme for Performance Enhancement of MIMO-OFDM Communication Systems Using Walsh Transform

“…Channel partitioning techniques commonly used in cellular and wireline communication networks include Orthogonal Frequency Division Multiplexing (OFDM) and Discrete Multi-Tone (DMT) modulation [2], [3], [4], [5]. The benefits of OFDM technology extend its use to future wireless communications (5G) [6], [7], [8], [9], [10].…”