Conference Paper

Large Intelligent Surface (LIS)-based wireless communication systems rely on chan- nel estimation techniques to estimate the channel state information (CSI) between the transmitter and receiver. However, channel estimation in LIS-based systems is constrained by high training costs. This paper presents an overview of performance analysis and comparison with exist- ing optimization algorithms, demonstrating comparable performance while significantly reducing computational complexity. Nevertheless, additional research is required to optimize the perfor- mance of these techniques for different scenarios and to develop implementation strategies that address the challenges posed by scenarios with high mobility.