Frequency Reversal Alamouti Code-Based FBMC With Resilience to Inter-Antenna Frequency Offsets

Transmit diversity schemes for filter bank multicarrier (FBMC) are known to be challenging. No existing have considered the presence of inter-antenna frequency offset (IAFO), which will result in performance degradation. In this letter, a new transmit scheme based on reversal Alamouti code (FRAC)-based structure address issue IAFO is proposed and proven inherently cancel inter-carrier interference (ICI) while preserving spatial diversity. Moreover, FRAC applicable frequency-selective channels. Numerical results show that undergoes negligible bit error rate (BER) degradation even with considerable IAFOs.