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fwdmalawmc
Abstract—In this paper, we study the joint estimation of inphase
and quadrature-phase (I/Q) imbalance, carrier frequency
offset (CFO), and channel response for multiple-input multipleoutput
(MIMO) orthogonal frequency division multiplexing
(OFDM) systems using training sequences. A new concept called
channel residual energy (CRE) is introduced. We show that by
minimizing the CRE, we can jointly estimate the I/Q imbalance
and CFO without knowing the channel response. The proposed
method needs only one OFDM block for training and the training
symbols can be arbitrary. Moreover when the training block
consists of two repeated sequences, a low complexity two-step
approach is proposed to solve the joint estimation problem.
Simulation results show that the mean-squared error (MSE) of
the proposed method is close to the Cramer-Rao bound (CRB).
Index Terms—MIMO OFDM, CFO, I/Q imbalance, channel
estimation.
- 2012-03-29 16:33:58下载
- 积分：1
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khelil_diss
master thesis for wireless ad hoc network
- 2009-04-21 00:00:33下载
- 积分：1
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EGC
分析了分别在瑞丽、莱斯、AWGN衰落信道、采用BPSK、QPSK、QAM调制方式情况下的EGC性能比较(The comparison of EGC performance under the conditions of Rayleigh, Rician, AWGN fading channels and using BPSK, QPSK and QAM modulation methods is analyzed.)
- 2021-04-22 18:58:48下载
- 积分：1
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LEO_Channel_MU
这是一份低轨道卫星建模的资料，比较简洁适合学习(This is a low-orbit satellite modelling data, relatively simple and suitable for learning, recommend to see)
- 2021-03-11 14:59:25下载
- 积分：1
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myicqsourcecode.rar
i c q 即 时 通 信 软 件， j a v a 实 现。 很 好 的 学 习 软 件。(icq instant messaging software, java implementation. Very good learning software.)
- 2009-03-13 20:49:18下载
- 积分：1
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RMSE变化tls-esprit程序
说明： 详细介绍了基于均匀线阵型的波达方向估计算法，线性旋转不变性子空间方法tls-esprit，介绍了RMSE变化的情况，具有可操作性。(Introduces the DOA estimation algorithm based on uniform linear array in detail, the linear rotation invariant subspace method (tls-esprit), the changes in RMSE and it is operable.)
- 2020-05-26 23:11:13下载
- 积分：1
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Watterson
短波信道watterson模型的建模仿真，已经编译通过。(Watterson HF channel modeling and simulation model has been compiled through.)
- 2021-04-01 10:29:07下载
- 积分：1
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6
说明： 6. 在三条径的瑞利信道中，对于OFDM：
(1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。
(2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。
(3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM:
(1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn.
(2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability.
(3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)
- 2021-01-23 11:58:44下载
- 积分：1
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BpskSim
无线通信调制C++源代码，BPSK,QAM,QPSK,FSK(Modulation C++ source wireless communication, BPSK, QAM, QPSK, FSK)
- 2014-08-07 07:27:29下载
- 积分：1
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gps信号模拟软件
说明： GPS信号模拟软件，模拟GPS设备向串口输出0183格式标准语句，配合串口虚拟工具使用，可以在普通电脑上调试(GPS signal simulation software, which simulates GPS equipment to output 0183 standard statements to serial port, can be debugged on ordinary computer with serial virtual tools.)
- 2020-06-24 13:20:02下载
- 积分：1
