Emerging 5G Multicarrier Chaotic Sequence Spread Spectrum Technology for Underwater Acoustic Communication

Wu, Jinqiu; Qiao, Gang; Pengbin, Kang

doi:10.1155/2018/3790529

Cited by 11 publications

(8 citation statements)

References 12 publications

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“…As recorded the limited bandwidth in underwater acoustic, OFDM suits for communication purposes. Contrary, OFDM offers a profitable integration over single-carrier modulations against with the frequency selective fading [312]. Thus, come up for all these issues, the requirement to deploys multi-carrier transmission schemes.…”

Section: A 5g Networking System In Underwatermentioning

confidence: 99%

Recent Trends in Underwater Visible Light Communication (UVLC) Systems

2022

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In recent years, underwater visible light communication (UVLC) has become a potential wireless candidate for signal transmission in highly critical, unknown, and acrimonious water mediums such as oceans. Unfortunately, the oceans are the least explored reservoirs in oceano-geographical history. However, natural disasters have aroused significant interest in observation and monitoring oceanic environments for the last couple of decades. Therefore, UVLC has drawn attention as a reliable digital carrier and claims a futuristic optical media in the wireless communication domain. Counterparts of traditional communications, the green, clean and safe UVLC supports high capacity of data-rate and bandwidth with minimal delay. Nevertheless, over long ranges, the deployment of UVLC is challenging rather than terrestrial basis communication. Additionally, VLC systems suffer from signal attenuation and strong turbulence channel conditions. Due to the fact that, this study provides an exhaustive and comprehensive survey of recent advancements in UVLC implementations to cope with the optical signal propagation issues. In this regard, a wide detail summary and future perspectives of underwater optical signaling towards 5G networks along with the current project schemes, channel impairments, various optical signal modulation techniques, underwater sensor network architectures with energy harvesting approaches, hybrid communication possibilities, and the Internet of underwater things (IoUTs) are concluded in this research.

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Section: A 5g Networking System In Underwatermentioning

confidence: 99%

Recent Trends in Underwater Visible Light Communication (UVLC) Systems

2022

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“…Since channel estimation in GFDM systems operating in underwater acoustic channel remains an unsolved challenge, Jinqiu-Gang-Pengbin (JGP) [25] have proposed a spread spectrum technique based GFDM transceiver. At the receiver side, through dispreading, the strongest signal is detected preventing the need for a channel estimation block.…”

Section: ) Gfdm Scheme For Uwa Communicationmentioning

confidence: 99%

Towards Multicarrier Waveforms Beyond OFDM: Performance Analysis of GFDM Modulation for Underwater Acoustic Channels

2020

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“…In underwater environment, we mainly concentrate on modelling of ambient noise. The simulation of underwater noise as a function of frequency is carried out using Equations (9) to (12). The four main sources of underwater noise, namely, turbulence, shipping, wind and thermal noise, and the total noise according to equation (13), are simulated for s = 0 and w = 1 m/s, and the simulation result is shown in Figure 4.…”

Section: Noise Modelmentioning

confidence: 99%

Generalized frequency division multiplexing–based acoustic communication for underwater systems

Hebbar¹,

Poddar²

2020

Int J Communication

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The underwater (UW) acoustic channel poses multiple challenges like coloured ambient noise, frequency-dependent attenuation, and doubly selective fading. The availability of a robust underwater communication mechanism can largely enhance the success of human effort in a multitude of applications, ranging from pollution surveillance to defence and search/ rescue operations. In this work, generalized frequency division multiplexing (GFDM), a non-orthogonal multicarrier scheme, which has recently been studied for terrestrial wireless fading channels, is developed and tested for signalling in UW acoustic communication. UW noise, attenuation, and doubly selective fading channels are modelled with appropriate statistics. The BER performance of proposed system is systematically evaluated under different channel conditions, starting from simple additive white Gaussian noise (AWGN) and Rayleigh fading channels to a horizontally configured UW channel. The performance is also compared with contemporary orthogonal frequency-division multiplexing (OFDM)-and filter bank multicarrier (FBMC)-based systems. K E Y W O R D Sgeneralized frequency division multiplexing (GFDM), acoustic underwater (UW) communication, UW channel modelling 1 | INTRODUCTION Underwater (UW) communications have received a lot of research attention due to their wide variety of applications ranging across defence/warfare, oceanographic and seismic wave monitoring, oil explorations, search and rescue operations, aquatic life monitoring, and pollution control and disaster management. Such applications need the deployment of UW sensor networks, along with autonomous/tethered vehicles or devices in deep oceans. The main requirement of underwater sensor nodes and vehicles is possession of self-configuration ability so that they are able to communicate and coordinate among themselves in a robust manner. Establishing a reliable underwater wireless communication is the enabling technology for most of these requirements.Electromagnetic waves, especially RF waves and optical signals, have been tested for UW communication. The electromagnetic waves, however, suffer from large frequency-dependent attenuation and absorption in the sea water. Moreover, the approach is hazardous to marine life and also fails if the medium becomes less or non-conductive over time and geography. Sound waves are seen to achieve longer range with the same transmit power due to its physical nature. The highly time-varying and spatial-varying nature of the ocean medium poses a major challenge in the design and

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Emerging 5G Multicarrier Chaotic Sequence Spread Spectrum Technology for Underwater Acoustic Communication

Cited by 11 publications

References 12 publications

Recent Trends in Underwater Visible Light Communication (UVLC) Systems

Recent Trends in Underwater Visible Light Communication (UVLC) Systems

Towards Multicarrier Waveforms Beyond OFDM: Performance Analysis of GFDM Modulation for Underwater Acoustic Channels

Generalized frequency division multiplexing–based acoustic communication for underwater systems

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