lstc

Conclusion Simulation results show that the new architecture greatly outperforms LSTC using zero-forcing algorithm .

结论仿真结果表明，新结构优于基于迫零算法分层空时编码的性能。信道估计、多用户检测，以及在时间选择性衰落下的问题，是今后进一步研究的方向。

Aim To improve the performance of layered space-time coding ( LSTC ) for wideband downlink transmission .

目的提高无线宽带下行传输中分层空时编码的性能。

Space-time coding includes space-time trellis coding ( STTC ), layered space-time coding ( LSTC ) and space-time block coding ( STBC ) .

空时编码包括三种：空时网格编码（STTC）、空时分层编码（LST）和空时分组编码（STBC）。

STC technology can divide into : Layered space-time coding ( LSTC ), space-time trellis code modulation ( ST-TCM ), Unitary space-time coding ( USTC ), differential space-time coding ( DSTC ) .

空时编码分为：分层空时编码、空时格型编码和酉空时编码、差分空时编码。

Space-time coding mainly includes Space-Time Block Codes ( STBC ), Space-Time Trellis Codes ( STTC ) and Layered Space-Time Codes ( LSTC ) . Based on the radio channel propagation models , the paper introduces several different models and corresponding channel capacities of MIMO systems .

空时编码技术主要包括：空时格码、分层空时码和空时分组码。本文在无线信道传播模型的基础上，首先介绍了MIMO系统的不同模型及信道容量。