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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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ls 与 mmse 两种信道估计算法比较LS_MMSE
说明： ls 与 mmse 两种信道估计算法比较(Comparison of LS and MMSE channel estimation algorithms)
- 2020-09-15 14:47:56下载
- 积分：1
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载波同步仿真，使用的是反馈补偿法
说明： 载波同步仿真，使用的是反馈补偿法，接收信号经补偿矩阵，误差提取，环路滤波，相位累加器后反馈回补偿矩阵，稳定后估计相位趋近相位差，存在相位模糊情况。(the simulation of the carrier synchronization)
- 2020-04-30 12:55:40下载
- 积分：1
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ds_cdma
wcdma 编码扩频调制过程。。。。。。。。。。。。。。。。。。(wcdma coded spread-spectrum modulation process
)
- 2011-12-06 15:02:09下载
- 积分：1
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GFQldpc
GF（Q）域上的低密度校验（LDPC）码的译码及其在深空通信中的应用.PDF(GF (Q) domain LDPC (LDPC) code decoding and its application in deep-space communication. PDF)
- 2008-04-11 09:56:34下载
- 积分：1
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DRSP
建立无线传感网中节点路由的减少重传次数的一种算法(An algorithm to establish the number of node routing in wireless sensor networks to reduce retransmission)
- 2012-08-03 13:58:55下载
- 积分：1
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eary-late
迟早门，集中统一介绍的文献，很好的，可以看看(Sooner or later the door and centralized described in literature, well, you can take a look at)
- 2013-03-21 10:23:29下载
- 积分：1
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DSSS
利用MATLAB实现多用户的扩频通信的发送和接受，程序可以直接跑，不需要改动！(The use of MATLAB implementation of multi-user spread spectrum communication send and receive, the program can be directly run, no changes!)
- 2020-07-02 22:00:01下载
- 积分：1
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The-Modulo-Lattice-Channel-The-Key-Feature-in-Pre
the pdf entitled The Modulo Lattice Channel The Key Feature in Precoding is attached
- 2017-05-13 17:17:17下载
- 积分：1
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vanetmatlab
说明： artificial transportation system and internet of vehicles, internet of things, vanet, intelligent transportation.
- 2020-06-24 21:40:01下载
- 积分：1
