An Improved Symbol Timing Synchronization Algorithm In Fbmc Systems
2019 INTERNATIONAL CONFERENCE ON ADVANCED ELECTRONIC MATERIALS, COMPUTERS AND MATERIALS ENGINEERING (AEMCME 2019)(2019)
摘要
A novel symbol timing synchronization algorithm by iterative method is proposed for FBMC / OQAM systems. In the iterative process, different methods are used for rough timing synchronization and fine timing synchronization. Firstly, the ZC (Zadoff-Chu) sequence delay correlation is used to estimate the coarse timing by cross-correlation. After the coarse timing synchronization compensation, the auto-correlation is used to estimate the carrier frequency offset, so that better frequency offset estimation performance can be obtained. Then, the estimated frequency offset is subjected to sequence compensation, and finally, the fine symbol timing synchronization is performed using the compensated sequence. Compared with other algorithms, it can be concluded that the proposed algorithm can obtain high precision of timing accuracy when there is frequency offset in the system.
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关键词
Iterative Decoding,Space-Time Coding,frequency domain equalization,signal constellations,Orthogonal Time Frequency Space Modulation
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