发送分集无线通信系统中的差分检测方案研究

A Differential Detection Scheme for Transmit Diversity Wireless Communications Systems

研究发射机和接收机均无信道状态信息的发送分集差分检测方案,并对其进行计算机模拟,模拟结果表明该差分检测方案较采用相干检测的发送分集方案在大信噪比时性能恶化约3dB。

This paper investigates a transmit diversity scheme given by two antennas when neither the transmitter nor the receiver has access to channel state information. The performance of the transmit diversity is simulated with computer. The results show that the performance of the investigated differential detection scheme is 3dB worse than that of the transmit diversity scheme which employs coherent detection.