Robust symbol detection for single-carrier underwater acoustic communication in impulsive noise environment
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View abstract on PubMed
Summary
This summary is machine-generated.This study introduces a robust underwater acoustic communication method using variational Bayesian inference (VBI) and vector approximate message passing (VAMP) to cancel impulsive noise. The novel approach improves bit error rate and communication system robustness.
Area Of Science
- Electrical Engineering
- Signal Processing
- Underwater Communications
Background
- Underwater acoustic communication systems are susceptible to impulsive noise, degrading performance.
- Existing methods for impulsive noise cancellation in communication systems have limitations.
Purpose Of The Study
- To develop a robust single-carrier iterative symbol detection method for underwater acoustic communication systems.
- To effectively cancel impulsive noise and improve communication reliability.
Main Methods
- A novel mixed model is proposed, distinguishing clean data from impulse-noise-induced outliers using binary indicator variables.
- Variational Bayesian inference (VBI) is employed for joint symbol and impulsive noise detection and compensation.
- Vector Approximate Message Passing (VAMP) is integrated into the VBI framework to enhance symbol detection.
- A channel estimation method based on damped generalized approximate message passing is introduced to reduce system complexity.
Main Results
- The proposed VBI-VAMP method demonstrates superior performance in impulsive noise environments.
- The technique significantly improves robustness and reduces the bit error rate (BER) compared to existing methods.
- Experimental results validate the effectiveness of the proposed communication system.
Conclusions
- The developed iterative symbol detection method offers a robust solution for underwater acoustic communications.
- The integration of VBI and VAMP provides an effective strategy for impulsive noise mitigation.
- The proposed system enhances the reliability and performance of underwater acoustic communication links.
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