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Evolutionary Algorithm Based Capacity Maximization of 5G/B5G Hybrid Pre-Coding Systems
Salman Khalid1, Waqas Bin Abbas1, Hyung Seok Kim2
1Department of Electrical Engineering, National University of Computer and Emerging Science, Islamabad 44000, Pakistan.
Sensors (Basel, Switzerland)
|September 22, 2020
Summary
This study introduces an Artificial Bee Colony (BEE) algorithm for hybrid pre-coding in Massive MIMO systems. The BEE-based scheme enhances spectral efficiency without complex interference cancellation, outperforming other methods.
Area of Science:
- Wireless Communication
- Signal Processing
- Optimization Algorithms
Background:
- Massive MIMO systems face path loss at millimeter wave frequencies.
- Hybrid pre-coding offers a solution with reduced computational complexity compared to fully connected structures.
- Improving spectral efficiency is crucial for future 5G/B5G systems.
Purpose of the Study:
- To enhance the spectral efficiency of partially connected hybrid pre-coding architectures.
- To propose an evolutionary algorithm for joint computation of RF and digital pre-coders.
- To evaluate the performance of the proposed algorithm against existing methods.
Main Methods:
- Application of the Artificial Bee Colony (BEE) evolutionary algorithm for joint RF and digital pre-coder computation.
- Evaluation of a partially connected hybrid pre-coding structure.
- Comparison with successive interference cancellation (SIC) based pre-coding and other evolutionary algorithms.
Main Results:
- The BEE-based pre-coding scheme significantly improves spectral efficiency.
- The proposed method achieves higher spectral efficiency than popular evolutionary algorithms and SIC-based schemes.
- The algorithm demonstrates robustness against variations in channel conditions.
Conclusions:
- Evolutionary algorithms, specifically the BEE algorithm, are effective for optimizing hybrid pre-coding in Massive MIMO systems.
- The proposed joint computation approach enhances spectral efficiency in partially connected architectures.
- The BEE-based scheme provides a promising solution for future wireless communication systems.
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