Lin Shao-feng, Wang Ning, Guo Chao-ping, Shi Yong-hong
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Study on Application of Adoptive CP-OFDM in Tactical UAV Downlink Transmission
On the basis of research on characteristics of downlink channel of tactical UAV (unmanned aerial vehicle) and the influence of CP to system performance, an improved adoptive CP-OFDM is introduced to overcome the decline of bit rate and waste of power efficiency caused by traditional CP-fixed OFDM when applied to tactical UAV downlink transmission. Theoretical analysis and simulation results show that, the method reduces the power loss of 0.5dB 1dB compared with CP-fixed OFDM, 0dB 0.5dB compared with original adoptive CP-OFDM, the method improves the transmission rate of 0~25% compared with CP-fixed OFDM, the improvement is 0~10% higher than original adoptive CP-OFDM.
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