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Space-Time Coding in Mobile Satellite Communications Using Dual-Polarized Channels

机译:使用双极化信道的移动卫星通信中的时空编码

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The use of dual-orthogonal polarization (horizontal/vertical or circular right-hand/left-hand polarizations) can increase the rate of transmission of satellite communication systems by a factor of two. However, the cross polar discriminations (XPDs) of the satellite and earth station antennas may be large enough to severely interfere between the two polarizations. In this paper, we investigate the use of space-time coding techniques in satellite-land mobile systems using dual-polarized transmit and receive antennas. In particular, we show that we can achieve significant gains by using layered space-time coding concepts and iterative detection and decoding receivers in communications systems employing polarization diversity channels in the presence of line-of-sight components.
机译:使用双正交极化(水平/垂直或圆形的右手/左手极化)可以将卫星通信系统的传输速率提高两倍。但是,卫星天线和地球站天线的交叉极化鉴别度(XPD)可能足够大,以至于严重干扰两种极化之间的干扰。在本文中,我们研究了时空编码技术在使用双极化发射和接收天线的卫星陆地移动系统中的使用。尤其是,我们表明,在存在视距组件的情况下,在采用极化分集信道的通信系统中,通过使用分层的时空编码概念以及迭代的检测和解码接收器,可以实现显着的收益。

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