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advantage of Channel state information at Txer
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MIMO及注水算法.在已信道状态信息时,求信道容量的方法.-Algorithm for MIMO and water. In the channel state information, and the method of channel capacity.
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在MIMO系统中,已知和未知信道状态信息时的信道容量比较-In MIMO systems, known and unknown channel state information when the channel capacity compared
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The main goal of this work is to provide a unified theory of QSTBCs for four transmit antennas and
one (or more) receive antennas. The thesis consists of two main parts: In the first part we analyze the
QSTBCs transmission without any channel kno
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本程序利用MATLAB仿真在不知道信道状态信息的情况下,利用差分编码和差分接收计算误码率的程序-MATLAB simulation of the procedures used in the does not know the channel state information of the case, the use of differential encoding and differential receiver bit error rate calculation process
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非理想信道状态信息对MIMO系统性能的影响-Non-ideal channel state information on the performance of MIMO systems
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A multiple-input multiple-output (MIMO) communication system combined with the orthogonal frequency division multiplexing (OFDM) modulation technique can achieve reliable
high data rate transmission over broadband wireless channels. Channel state i
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A Subcarrier Allocation Algorithm for OFDMA
using Buffer and Channel State Information is one of the basic and most prominent algorithm in the present day world
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Simulation of Alamouti’s Scheme over Rayleigh fading channel.
Assume perfect channel state information at the receiver. Plot BER performance (use gray mapping) and compare it to MRC with 2RX antennas. Compare the performance with MRC.
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SM、V-BLAST、MRC系统仿真比较 SM、V-BLAST、MRC系统6bits传输仿真结果-Normalized maximum ratio combining (NMRC) detection algorithm, NMRC algorithm for general channels, flat fading channel Tan Ruili, Gaussian white noise, the receiver has received a perfect channel stat
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Relay Precoder Designs for Amplify-and-forward
MIMO Relay Networks with Imperfect Channel
State Information
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随着传输速率越来越高,信号所占用的带宽越来越宽,实际信道呈现出频率选择性衰落特
性。根据频率选择性衰落信道特性,建立了频率选择性衰落M IMO信道模型,采用频域和时域的方
法研究了在频率选择性衰落下,发射端已知和未知信道状态信息的M IMO信道容量,并给出了相关
的仿真结果。研究结果表明:在相同发射功率和传输带宽下,M IMO系统可以不牺牲信号带宽而显
著提高信道的容量,并且天线数量和输入信噪比的大小对信道容量具有不同的影响。研究结果为如
何提高频率选择性衰落环境下M IMO
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非理想信道状态信息对频谱共享认知中继网络性能的影响.pdf-Effect of the Imperfect Channel State Information on the Spectrum Sharing Cognitive Relay Networks
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知道完美信道状态信息与不知道信道状态信息的信道容量的对比-Know the perfect channel state information and does not know the channel state information of the channel capacity of the contrast
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软件程序按照发射端所掌握的各用户信道状态信息的程度共分为两部分:即完整信道状态信息(CSIT)和部分信道状态信息(CSIP)。其中,每一部分都包括预编码(precoding)和用户调度(scheduling)
在CSIT中,precoding又按照各用户的数据流数分为单数据流和多数据流两种情况。在每种情况下,首先考察了不同预编码算法的性能表现,包括两种ZF、MMSE、SINR、SLNR。之后又考察了功率分配算法的性能表现(文件名中含有PD表明其含有功率分配的过程)。按照不同指标进行功率
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Multi-User Diversity vs. Accurate Channel State Information in MIMO Downlink Channels
Niranjay Ravindran and Nihar Jindal
University of Minnesota, Minneapolis, MN 554-Multi-User Diversity vs. Accurate Channel State Information in MIMO Downlink Ch
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MIMO系统在发射端未知信道状态信息条件下,不同天线配置时的信道容量对比。-MIMO system in the transmitter channel state information unknown conditions, channel capacity when comparing different antenna configurations.
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与在空间域上通过适当信号处理来分离多用户相比,下行多用户多输入多输出(MU-MIMO)传输技术因其显著增加系统容量的潜力近来已经得到广泛关注。令人遗憾的是,这些技术需要准确的信道状态信息保证其正常运行。然而在实践中,由于在FDD系统中反馈信道的有限容量导致精确的CSIT是难以获得的。本文研究的系统采用MU-MIMO下行链路传输中的分解有限反馈。特别是,支持能够处理用户间干扰的方案的必不可少的信息是确定的,根据把残余的用户间干扰功率最大限度地减小来设计最佳的码本。模拟结果表明,一般的有限反馈对通过
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采用多天线的认知无线电系统相对于单天线认知无线电系统,既有传统的资源(频域,时域,码域),又有空域资源。本文研究基于博弈论的有限反馈认知MIMO系统的资源分配,涉及发射功率、空域(采用波束成形)和反馈速率等资源的分配。利用有限的反馈信道反馈量化的信道状态信息(CSI),基于量化CSI,本文主要研究联合功率分配与波束成形优化、次用户(认知用户或非授权用户)反馈速率控制、联合功率分配与反馈速率控制等相关资源分配问题。-Multi-antenna cognitive radio system with
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If SDMA is used on the downlink of a multi-user MIMO system,
either long-term or short-term channel state information
has to be available at the base station (BS) to faciliate the joint
precoding of the signals intended for the different users.
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