Performance analysis for keyhole channel of a quaternion quasi-orthogonal space time block code

摘要

Performance analysis for keyhole channel of a new kind of quaternion quasi-orthogonal space time block code is introduced in this paper. First the transmission model is formulated. Then the new code of four transmit antennas is designed, the new code can provide full transmission rate. And zero-forcing linear decoding method is adopted. Lastly the new code is compared with the quaternion quasi-orthogonal space-time block code of four transmit antennas for Rayleigh channel and with the traditional quasi-orthogonal space-time block code of four transmit antennas for keyhole channel. Simulation results show that the new code can increase bit error rate compared with the quaternion quasi-orthogonal space-time block code for Rayleigh channel, and can reduce bit error rate compared with the traditional quasi-orthogonal space-time block code for keyhole channel.