High-speed terahertz (THz) communication systems face challenges in transmission performance due to both linear and nonlinear impairments. While Volterra nonlinear equalizer (VNLE) significantly enhances the performance of high-speed THz signals, its extensive computational complexity hinders practical implementation. In response, we present and experimentally validate a pruned Volterra nonlinear equalizer (PVNLE). Our approach involves identifying and eliminating insignificant weight coefficients from the second-order VNLE, effectively mitigating computational complexity while maintaining equalizer performance. Compared to the traditional VNLE, our proposed method demonstrates similar performance in terms of bit error rate (BER) with a noteworthy 70% reduction in computational complexity.
- Low Complexity Volterra Equalizer for Terahertz Radio-over-Fiber Communication Systems
- Pouya Torkaman - National Tsing Hua UniversitySeyed Mostafa Latifii - National Tsing Hua UniversityKai-Ming Feng - National Tsing Hua University, Department of Electrical EngineeringShang-Hua Yang - National Tsing Hua University, College of Semiconductor Research
- 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (Perth, Australia, 01/09/2024–06/09/2024)
- IEEE
- 2
- Conference paper
- 01/09/2024
- International Conference on Infrared, Millimeter, and Terahertz Waves (Print), pp.1-2
- English