BER Performance Investigation of MIMO Underwater Acoustic Communications

Pranitha, B.; Minh, Hoa Le; Aslam, Nauman; Anjaneyulu, L.; Vangala, Sandeepkumar

doi:10.1109/csndsp.2018.8471868

Cited by 5 publications

(2 citation statements)

References 8 publications

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“…Based on these evidences it can be understood that MIMO technology increases the capacity of the channel reducing the Bit Error Rate (BER) of system in UWAC [11]. To recover the transmitted data, ZF equalization technique has been applied to MIMO in [12].…”

Section: Introductionmentioning

confidence: 99%

International Journal of Electronics and Telecommunications

Pranitha¹,

Anjaneyulu²,

Minh³

et al. 2020

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Underwater Acoustic Communications (UWAC) is an emerging technology in the field of underwater communications, and it is challenging because of the signal attenuation of the sound waves. Multiple Input and Multiple-Output (MIMO) is introduced in UWAC because of its support in enhancing the data throughput even under the conditions of interference, signal fading, and multipath. The paper presents the concept and analysis of 2× 2 MIMO UWAC systems that uses a 4-QAM spatial modulation scheme thus minimizing the decoding complexity and overcoming the Inter Channel Interference (IChI). Bit Error Rate (BER) investigation is carried out over different link distances under acoustic Line of Sight (LOS). The utilization of Zero Forcing (ZF) and Vertical-Bell Laboratories Layered Space-Time (VBLAST) equalizers, which estimates the transmitted data proves a success of removing Inter Symbol Interference (ISI). The ISI caused due to multipath effect and scattering in UWAC can be reduced by iterative process considered in VBLAST. A study is made on how the distance between the transmitter and the receiver and the Doppler Effect has its impact on the performance of the system.

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Section: Introductionmentioning

confidence: 99%

International Journal of Electronics and Telecommunications

Pranitha¹,

Anjaneyulu²,

Minh³

et al. 2020

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“…In our previous work [19], a comparison for ZF equalizer and LMS equalization has been made in UWAC for a 2×2 MIMO in which ZF equalization outperforms LMS equalization technique. In this paper, the ZF equalization technique at the receiver will be compared for Rayleigh and Rician fading UWAC MIMO channels.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a MIMO based Underwater Communication System under Fading Conditions

Pranitha

Anjaneyulu

2019

Eng. Technol. Appl. Sci. Res.

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Due to the intense importance of underwater applications in military and commercial purposes, Underwater Acoustic Communication (UWAC) is an attracting research area. Very high propagation delay, path loss, and low bandwidth are the factors that challenged the acoustic waves in an underwater environment. Multi-input multi-output (MIMO) techniques are currently considered in UWAC to surpass the bandwidth limitation of the undersea channel. In this paper, the accomplishment of a MIMO in UWAC System highlighting both Line of Sight (LOS), i.e. the Rician fading and Non-Line of Sight (NLOS), i.e. the Rayleigh fading signal propagation, is assessed. Spatial Modulation technique is used, which helps in increasing the data rate in UWAC. It controls the spatial distribution of the energy caused by a signal in such a way that the single ocean channel sustains multiple parallel communication channels. The utilization of Zero Forcing (ZF) equalizer, which estimates the transmitted data proves the success of removing inter symbol interference (ISI). Matlab simulations are done for the UWAC system for values of LOS/NLOS. Because of various scattering effects in NLOS propagation, the error rate is considerably high when compared to that of the LOS propagation. Bit Error Rate (BER) values for the corresponding signal to noise ratio (SNR) are calculated.

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Novel Distance-Based Subcarrier Number Estimation Method for OFDM System

Kumar¹,

Kumar²

2020

Lecture Notes in Electrical Engineering

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BER Performance Investigation of MIMO Underwater Acoustic Communications

Cited by 5 publications

References 8 publications

International Journal of Electronics and Telecommunications

International Journal of Electronics and Telecommunications

Performance Evaluation of a MIMO based Underwater Communication System under Fading Conditions

Novel Distance-Based Subcarrier Number Estimation Method for OFDM System

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