Direct-Mapping-Based MIMO-FBMC Underwater Acoustic Communication Architecture for Multimedia Signals

Chin-Feng Lin,Ivan A Parinov,Sergey Shevtsov,Shun-Hsyung Chang,Hung-Kai Chang,Chun-Kang Lee,Tsung-Jen Su

doi:10.3390/app10010233

Abstract

In this paper, a direct-mapping (DM)-based multi-input multi-output (MIMO) filter bank multi-carrier (FBMC) underwater acoustic multimedia communication architecture (UAMCA) is proposed. The proposed DM-based MIMO-FBMC UAMCA is rare and non-obvious in the underwater multimedia communication research topic. The following are integrated into the proposed UAMCA: A 2 × 2 DM transmission mechanism, a (2000, 1000) low-density parity-check code encoder, a power assignment mechanism, an object-composition petrinet mechanism, adaptive binary phase shift keying modulation and 4-offset quadrature amplitude modulation methods. The multimedia signals include voice, image, and data. The DM transmission mechanism in different spatial hardware devices transmits different multimedia packets. The proposed underwater multimedia transmission power allocation algorithm (UMTPAA) is simple, fast, and easy to implement, and the threshold transmission bit error rates (BERs) and real-time requirements for voice, image, and data signals can be achieved using the proposed UMTPAA. The BERs of the multimedia signals, data symbol error rates of the data signals, power saving ratios of the voice, image and data signals, mean square errors of the voice signals, and peak signal-to-noise ratios of the image signals, for the proposed UAMCA with a perfect channel estimation, and channel estimation errors of 5%, 10%, and 20%, respectively, were explored and demonstrated. Simulation results demonstrate that the proposed 2 × 2 DM-based MIMO-FBMC UAMCA is suitable for low power and high speed underwater multimedia sensor networks.

Highlights

Underwater acoustic multimedia communication (UAMC) has attracted the interest of many researchers
2 × 2 DM-based multi-input multi-output (MIMO) multimedia modulated packets that were in the serial-to-parallel method, 64-point inverse fast Fourier transform (IFFT), two polyphase networks (PPNs), and parallel-to-serial method; and 2 × 2 DM-based MIMO-filter bank multi-carrier (FBMC) multimedia modulated packets with power assignment schemes were extracted as final outputs
Performances of the proposed underwater acoustic multimedia communication architecture (UAMCA) using 4-offset quadrature amplitude modulation (OQAM) modulation with all other conditions retained from the binary phase shift keying (BPSK) system, are 2.93 × 10−5, 5.73 × 10−5, 0.00011, and 0.00041, respectively

Summary

Introduction

Underwater acoustic multimedia communication (UAMC) has attracted the interest of many researchers. Multiple-input multiple-output (MIMO) schemes with spatial multiplexing gain, filter bank multi-carrier (FBMC) modulation, the offset quadrature amplitude modulation (OQAM), and preamble-based channel estimation are integrated into a proposed underwater acoustic video transmission system, and the BER in the time and frequency dispersions in the UAC are discussed in [7]. Woodward et al [15] proposed a Filtered Multitone (FMT) modulation underwater acoustic communications system, integrated with low-complexity channel-estimation-based minimum MSEs adaptive turbo equalization, (7,5) convolutional channel coding, adaptive binary phase shift keying (BPSK), and eight phase shift keying modulation. Qiao et al [16] proposed a 2 × 2 MIMO OFDM-based high speed underwater acoustic transmission system, with low density parity check (LDPC) channel coding, orthogonal matching pursuit (OMP) channel estimation, and minimum mean-squared error (MMSE).

System Models

Simulation Results

Conclusions