本文提出了一种新的四天线准正交空时分组码的通用设计方法。
In this paper, a novel general design method of quasi-orthogonal space-time block codes for four antennae is presented.
随着调制阶数的增加，正交空时分组码的性能越来越差，但传输速率变大；
If the modulation order is different, the higher the order is, the worse the performance is, but the transmitting rate is bigger.
研究了基于正交空时分组码的多用户OFDM系统的自适应子载波分配算法。
An adaptive subcarrier allocation algorithm for multiuser OSTBC-OFDM system is discussed in this paper.
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