TY  - JOUR
T1  - An Adaptive Channel Equalization Scheme for Interference-Robust Secondary Synchronization Signal Detection in LTE and 5G Systems
AU  - Lee, Yelan 
AU  - Kim, Juyeop 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2025
DA  - 2025/1/1
DO  - 10.7840/kics.2025.50.7.1042
KW  - Cell search
KW  - equalization
KW  - SSS detection
KW  - software modem
KW  - interference
AB  - This paper proposes a method to enable effective cell ID detection by UE during the synchronization process in LTE and 5G networks under interference conditions. To enhance the SSS detection performance, equalization is performed using channel estimation values obtained through the PSS. However, in environments where interference signals from neighboring base stations are present, equalization may degrade performance.
Therefore, this study mathematically analyzes and presents an adaptive equalization technique that detects interference and optimizes SSS detection when multiple base station signals are received. A hardware testbed is built to validate the proposed method, demonstrating reliable cell ID detection even in the presence of interference signals.