您要查找的是不是：
- Combined with several OFDM transceivers at the base-band parallel, the conventional single-carrier SDM MIMO system could be extended to SDM MIMO OFDM system. 将MIMO技术与OFDM相结合,通过在基带上增加多路并行的OFDM系统可以把传统基于单载波的空间复用MIMO系统扩展成为空间复用MIMO OFDM系统(SDM MIMO OFDM)。
- Time-Varying Channel Estimation and Pilot Tone Placement for MIMO OFDM Systems 系统时变信道估计及最优导频分布
- An adaptive modulation technique for multiuser MIMO systems with multiuser diversity is proposed. 摘要提出一种在MIMO系统中采用自适应调制实现可变速率多用户分集的方案。
- OFDM system tends to damage the orthogonality for ICI. OFDM的频谱正交性容易受到ICI的影响被破坏.
- Carrier frequency offset is one of the key problems in OFDM system. 摘要载波频率偏移是OFDM系统实现的关键问题之一。
- An adaptive subcarrier and bit allocation method based on embedded constellation is proposed for multiuser OFDM systems. 在多用户正交频分复用(OFDM)系统中,提出了一种基于复合星座的自适应子载波和比特分配方案。
- We propose a novel suboptimal antenna selection algorithm which is based on the channel Frobenius norm for multiuser MIMO systems with BD while keeping the computational complexity lower. 论文就是针对采用块对角化预编码的多用户MIMO下行链路，基于信道F-范数提出一种新的次优天线选择算法。
- To gain more insights of MIMO OFDM, the most promising 4G air interface, we study its coherent and noncoherent system structures in multipath time-varying Rayleigh fading channels. 为了对这最有希望的第四代空中介面-多输入多输出正交分频分工-有更深入的了解，我们研究它在多路径时变瑞雷衰落通道的同调与非同调系统架构。
- A Suboptimal Multiple Access Scheme for Multiuser OFDM System 多用户OFDM系统中一种次最优多址接入方案
- In chapter 4, we concatenate space-time block coding with a delay processor and a signal mapper in OFDM system. 在第四章中，我们结合具有延迟处理器的篱栅编码架构与正交空时区块码应用于正交分频多工系统。
- In this dissertation, under the guidance of multiuser information theory, the resource optimization techniques in both OFDM systems and cooperative communication systems are intensively studied. 本文以基于OFDM技术的第四代移动通信系统为背景,在多用户信息论的指导下,研究系统中的资源优化分配问题。
- The results show that TC OFDM system can provide 6dB coding gain at a BER of 10 -3 compared with no coding OFDM system. 结果表明 ,在比特误码率BER为 10 - 3时采用TC OFDM方案与未编码系统相比可以提供 6dB的编码增益。
- The MIMO OFDM Technology in WLAN WLAN中的MIMO OFDM技术
- This paper also introduces the application of LDPC codes,especially its application in the STC- OFDM system. 文中还讨论了LDPC码的应用,主要是在STC-OFDM系统中的应用。
- The second chapter introduced OFDM system, including series-parallel conversion, DFT/IDFT conversion, cyclic prefix. 第二章介绍了OFDM系统与MIMO技术,包括OFDM系统的串并转换,DFT/IDFT转换,循环前缀等特性。
- One of the major drawbacks of the OFDM system is the high peak-to-average power ration (PAPR). 摘要正交频分复用(OFDM)系统的一个主要缺点是峰均功率比(PAPR)过高。
- By this way, no redundant signals are added, and the bandwidth efficiency of OFDM system is further increased. 由于采用这种方法无需加入冗馀信息，故进一步提高了系统的传输效率。
- From the OFDM system theory, we could know baseband OFDM signals often are realized by IFFT. 从OFDM系统原理可以知道，基带OFDM信号通常都是用IFFT来实现的。
- A training guided decision feedback equalization (DFE) method was proposed for OFDM system. 针对OFDM系统,提出了一种基于训练引导的判决反馈均衡算法。
- A new frequency offset and channel estimation joint algorithm for OFDM system is proposed. 摘要针对正交频分复用系统提出一种新的频偏与信道联合估计的算法。
