1) space-frequency coding
空频编码
1.
Tail cancellation and cyclic reconstruction are applied in SFBC-OFDM system to eliminate the bandwidth loss of space-frequency coding due to the cyclic prefix.
将尾抵消和循环重建应用于空频编码的正交频分复用(SFBC-OFDM)系统中,为了消除循环前缀对空频编码带宽损失的影响,使用了迭代算法来校正接收到的信号。
2.
Noncoherent space-frequency coding in MIMO-OFDM is an important method to obtain space and frequency diversity in the absence of channel state information.
非相干空频编码是在无法得到精确信道信息的情况下获取MIMO-OFDM系统中空间分集和频率分集的重要手段,而目前非相干空频码的研究还是将整个OFDM符号看作是一个码字,这样大大增加了系统的编译码复杂度。
3.
This paper introduces the basic principles of MIMO-OFDM technology briefly,and focuses on the research on the space-frequency coding,receiver design,multiuser systems and some relevant open areas for the further research.
简要介绍了MIMO-OFDM技术的基本原理,重点讨论了空频编码、接收机设计、多用户系统等方面的研究现状以及未来研究的领域。
2) SFBC
空频编码
1.
Under this scenario,the space-frequency block codes(SFBC) scheme cannot lead to significant diversity gains.
针对小间距天线的空间信道具有很强的相关性,空频编码(SFBC)通过小间距天线的空间信道将损失分集增益的问题,提出一种在小间距天线和没有信道状态信息(CSI)的情况下,通过载波映射得到较好分集增益的算法——小间距天线分集算法(SDA),并且从理论上证明该算法的正确性。
5) space-time-frequency code
空时频编码
1.
In order to enhance the transmission reliability,the space-time-frequency code is introduced into the process of transmitting control signal,thus to make the control signal achieve space diversity gain,time diversity gain and frequency diversity gain simultaneously.
文中针对B3G系统,提出了一种控制信令传输方法,为了提高传输的可靠性,将空时频编码引入到控制信令的传输中,使得控制信令在传输的过程中,能够同时获得空间分集、时间分集和频率分集,从而达到了提高传输可靠性的目的。
2.
In order to obtain maximum coding gain and full diversity gain in space,time and frequency for MIMO-OFDM systems,an improved rate-one space-time-frequency code is presented.
为了在MIMO-OFDM系统中更好地获得空间、时间和频率三维分集增益及较高编码增益,设计了一种最大码元速率为1的改进空时频编码技术。
6) space-time/space-frequency code
空时/频编码
补充资料：空急空巴
1.干着急﹐无可奈何。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条