A5086468742- Optical Network Technologies
- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- Advanced Wireless Communication Techniques
- Photonic Crystal and Fiber Optics
- Advanced Fiber Optic Sensors
- PAPR reduction in OFDM
- Advanced MIMO Systems Optimization
- graph theory and CDMA systems
- Cellular Automata and Applications
- Cooperative Communication and Network Coding
- Error Correcting Code Techniques
- Blind Source Separation Techniques
- Optical Systems and Laser Technology
- Advanced Optical Sensing Technologies
- Photonic and Optical Devices
- Advanced Measurement and Detection Methods
- Advanced Optical Network Technologies
- Fault Detection and Control Systems
- Semiconductor Lasers and Optical Devices
- Target Tracking and Data Fusion in Sensor Networks
Beijing Jiaotong University
2021-2025
Qufu Normal University
2019
A block-based mode decomposition (BMD) algorithm is proposed in this paper, which reduces computational complexity and enhances noise resistance. The BMD uses randomly selected sample blocks of the beam images to restore coefficients instead all pixels images. It allows for any shape, such as triangles. In noise-free simulations, compared spatially degenerated (SPMD) algorithm, requires only 1% multiplication operations, thereby significantly increasing efficiency while maintaining a high...
In this paper, an adaptive frequency-domain block equalizer (FDBE) implementing the moment estimation (Adam) algorithm is proposed for mode-division multiplexing (MDM) optical fiber communication systems. By packing all frequency components into frequency-dependent blocks of a specified size B, we define equalization matrix to simultaneously compensate multiple at each block, which computed iteratively using Adam, recursive least squares (RLS) and mean (LMS) algorithms. Simulations show that...
This paper proposes the alternating direction method of multipliers-based infinity-norm (ADMIN) with threshold (ADMIN-T) and percentage (ADMIN-P) detection algorithms, which make full use distribution signal to interference plus noise ratio (SINR) for an uplink massive MIMO system. The ADMIN-T ADMIN-P algorithms are improved visions ADMIN algorithm, in appropriate SINR algorithm a certain designed reduce overall computational complexity. detected symbols divided into two parts by is based on...
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
The probability distribution of the signal-to-interference plus noise ratio (SINR) is analyzed and approximated by generalized gamma for mode-dependent loss (MDL)-impaired fiber links. Based on characteristics SINR, an improved reduced-search algorithm (IRS) based multilevel SINR thresholding (IRS-MST) proposed. IRS-MST dynamically determines size search space each mode multiple thresholds. Furthermore, a compounding function used to balance performance. Simulation results show that can...
Mode division multiplexing (MDM) technology enables multiple data signals to be transmitted over the same fiber channel, which is a potential method for increasing capacity of optical communication systems. Primary impaired factor mode-dependent loss (MDL) poses fundamental limitations, increases hardware complexity receiver, and decreases performance MIMO algorithm. In this work, alternating direction multipliers with threshold (ADMM-T) detection algorithm proposed MDL-impaired links by...
A novel joint classification and regression task convolutional neural network (JCR-CNN) architecture is proposed, which can perform the discrimination of hybrid mode group categories in few-mode fibers (FMFs) predict corresponding coefficients simultaneously. In addition, introduction data augmentation (DA) technique establishes a tight link between experimental synthetic simulation data, allowing model trained only on to cope well with acquisition errors optical path configuration when...
Research to mode division multiplexing (MDM) systems based on few-mode or multi-mode fibers is one of the hot spots achieve demand for rapidly increased global user data traffic. Polar code, with a very low encoding and decoding complexity Shannon Limit, worthwhile apply MDM into research. Besides, acquisition channel state information (CSI) great significance equalization detection coherent receivers. However, CSI considered be fully known at receiver in most existing research few discusses...