On the symbol detection of layered space time codes, it is assumed that the perfect channel estimations are available at the receiver.
提出一种基于旋转不变子空间的垂直分层空时码及其直接信号检测算法。
Power Allocation(PA) and Space Time Codes(STC) are the key techniques of the Multiple-Input Multiple-Output(MIMO) to increase spectral efficiency and improve performance.
运用功率分配和空时编码技术可以在MIMO系统中提高频谱效率、改善系统性能。
In this paper, we mainly compare the performance of the two space-time codes in many aspects, such as design criterion, transmission rate, diversity gain, code gain and arithmetic complexity etc.
在本文中，本文对这两种编码方式在设计准则、传输速率、分集增益、编码增益和算法复杂性等方面进行了较为详尽的比较研究。
Space- time block codes are code technologies which provide a new paradigm for transmitting over Rayleigh fading channels using multiple antennas.
空时编码是最近提出的使用多个天线应用于瑞利衰落信道的编码技术。
Based on cyclic diagonal codes, an improved design of unitary space-time codes (USTC) at low SNR is proposed.
在低信噪比情况下，提出了一种基于循环对角码的改进的酉空时码设计。
The pairwise error probability (PEP) of space-time trellis codes (STTC) was investigated to evaluate the performance of STTC over fading channels.
为获得衰落信道中空时网格码(STTC)的性能估计，对STTC的成对差错概率(PEP)进行了研究。
Whereas the non-orthogonal space-time block codes which obtain higher transmission rate at the cost of orthogonality and partial diversity gain may degrade the performance.
而以牺牲正交性和部分分集增益为代价来获得更高传输速率的非正交空时分组码又会使误码性能降低。
Focusing on the problem that existing linear dispersion (LD) space-time codes have a high encoding and decoding complexity, a type of orthogonal linear dispersion (OLD) space-time codes is proposed.
针对多输入多输出系统中现有的线性分散(LD)空时码编、解码复杂度高的问题，提出了一类正交线性分散(old)空时编码。
A decoding algorithm based on the tree-structured constellation design was presented in order to reduce the decoding complexity of unitary space-time codes.
针对酉空时码最大似然检测复杂度高的问题，提出了一种酉空时星座的设计及低复杂度译码方法。
Performance comparison of space time trellis codes and space time transmit diversity is carried out under the same bandwidth efficiency in this paper.
本文在相同频带利用率下将空时格码与空时发射分集的性能进行了比较。
In this paper, by combining the subspace method with layered space-time codes, we propose a vertical layered space-time code and accomplish the channel estimation without the training symbols.
本文将信号处理中的子空间方法同分层空时码的编码结构相结合，提出了一种垂直分层空时编码，实现了无需训练序列的信道估计。
In this paper, some optimum low rate space-time trellis codes are proposed.
本文给出了几种低码率空时网格码的好码。
Based on the above, the impact of amplitude coefficient ratio on amplitude-phase Double Differential Space-Time Codes is discussed, and an optimal selection scheme in amplitude coefficient is given.
在此基础上，讨论了幅度系数比对幅度相位双差分空时码的影响，并给出了一种最佳的幅度系数选择方案。
Due to the performance degradation of subspace-based blind decoding of space-time block codes (STBC) over spatially correlated channels, a revised decoding algorithm was proposed.
针对空时分组码子空间盲解码算法在空间相关信道下性能下降的问题，提出了一种修正解码算法。
It presents a new scheme of combining complex-rotary codes and layered space-time code to improve the performance of systems based on the lack of encoding plus of layered space-time code.
针对分层空时编码技术缺少编码增益的问题，提出了将复数旋转码与分层空时编码技术相结合来提高系统的性能。
In this paper, a novel general design method of quasi-orthogonal space-time block codes for four antennae is presented.
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。
Firstly, the paper analyses the space-time channel model and space-time signal systematically, as space-time codes belong to the technology dealing with space and time.
首先，由于空时编码是利用时间和空间的结合，属于空时处理技术，本文对空时信道模型和空时信号处理作了系统的分析。
Finally, the performance merit of TCMST block code is confirmed by Monte Carlo simulations and compared with other space-time block codes.
给出了TCMST块码的网格球解码算法，并对TCMST块码的性能进行了仿真，与其他空时块码做了比较，证实了TCMST块码的性能优越性。
Based on the simple analyses of the MIMO system, this paper discusses and compares the performance and the complexity of the detection algorithms of layered space-time codes.
本文在对MIMO系统作简要分析的基础上讨论了应用于分层空时系统的各种检测算法，并对其进行了性能及复杂度比较。
This dissertation research the architecture and decoding algorithm of space-time concatenated codes based on LDPC code.
本文主要研究基于LDPC码的空时级联码的实现方案和译码算法。
The present invention relates to the fields of transmit diversity, receive diversity and space-time block codes.
本发明涉及发射分集、接收分集和空时分组编码领域。
The current research interests in the paper are space-time encoding techniques for keyhole channels and the performance of space-time trellis codes. And some results have been gi...
匙孔信道的研究目前还处于初级阶段，现介绍了匙孔信道的空时格形码的编译码技术，就其性能特点做简略的分析介绍，并给出了一些结论。
The current research interests in the paper are space-time encoding techniques for keyhole channels and the performance of space-time trellis codes. And some results have been gi...
匙孔信道的研究目前还处于初级阶段，现介绍了匙孔信道的空时格形码的编译码技术，就其性能特点做简略的分析介绍，并给出了一些结论。
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