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Description: We address the problem of blind carrier frequency-offset (CFO) estimation in quadrature amplitude modulation,
phase-shift keying, and pulse amplitude modulation
communications systems.We study the performance of a standard
CFO estimate, which consists of first raising the received signal to
the Mth power, where M is an integer depending on the type and
size of the symbol constellation, and then applying the nonlinear
least squares (NLLS) estimation approach. At low signal-to noise
ratio (SNR), the NLLS method fails to provide an accurate CFO
estimate because of the presence of outliers. In this letter, we derive
an approximate closed-form expression for the outlier probability.
This enables us to predict the mean-square error (MSE) on CFO
estimation for all SNR values. For a given SNR, the new results
also give insight into the minimum number of samples required in
the CFO estimation procedure, in order to ensure that the MSE
on estimation is not significantly affected by the outliers.
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Size: 1265664 |
Author: 吴大亨 |
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Description: I need estimation channel MIMO-OFDM because I do synchronous CFO and SFO by tracking algorithm Obelix-I need estimation channel MIMO-OFDM because I do synchronous CFO and SFO by tracking algorithm Obelix
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Size: 10240 |
Author: bachka |
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Description: simple CFO estimation in mimo ofdm
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Size: 1024 |
Author: murali |
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Description: carrier frequency offset method in WLAN
- in document
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Size: 2483200 |
Author: seungyerl Lee |
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Description: carrier frequency offset CFO模擬-carrier frequency offset CFO simulation
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Size: 6144 |
Author: leolin |
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Description: good matlab code about cfo in mimo ofdm
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Size: 1024 |
Author: eng_dina |
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Description: In this paper, we investigate the timing and carrier
frequency offset (CFO) synchronization problem in decode and
forward cooperative systems operating over frequency selective
channels. A training sequence which consists of one orthogonal
frequency-division multiplexing (OFDM) block having a tile
structure in the frequency domain is proposed to perform synchronization.
Timing offsets are estimated using correlation-type
algorithms. By inserting some null subcarriers in the proposed tile
structure, we propose a computationally efficient subspace decomposition-
based algorithm for CFO estimation. The issue of optimal
tile length is studied both theoretically and through simulations.
By judiciously designing the tile size of the pilot, the proposed
algorithms are shown to have better performance, in terms of
synchronization errors and bit error rate, than the time-division
multiplexing-based training method and the computationally demanding
space-alternating generalized expectation-maximization
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Size: 985088 |
Author: ashish |
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Description: In this paper, we investigate the timing and carrier
frequency offset (CFO) synchronization problem in decode and
forward cooperative systems operating over frequency selective
channels. A training sequence which consists of one orthogonal
frequency-division multiplexing (OFDM) block having a tile
structure in the frequency domain is proposed to perform synchronization.
Timing offsets are estimated using correlation-type
algorithms. By inserting some null subcarriers in the proposed tile
structure, we propose a computationally efficient subspace decomposition-
based algorithm for CFO estimation. The issue of optimal
tile length is studied both theoretically and through simulations.
By judiciously designing the tile size of the pilot, the proposed
algorithms are shown to have better performance, in terms of
synchronization errors and bit error rate, than the time-division
multiplexing-based training method and the computationally demanding
space-alternating generalized expectation-maximization
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Size: 728064 |
Author: ashish |
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Description: plotting Consecutive OFDM Subcarriers in Time domain..This program plots sensitivity of OFDM subcarriers with Carrier frequency offset(CFO)-plotting Consecutive OFDM Subcarriers in Time domain..This program plots sensitivity of OFDM subcarriers with Carrier frequency offset(CFO)..
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Size: 1024 |
Author: murugan |
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Description: about Carrier frequency offset(CFO)
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Size: 975872 |
Author: jot |
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Description: Add CFO in OFDM... straight forward implimentation matlab
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Size: 1024 |
Author: cops |
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Description: cfo freq offs etimation
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Size: 1024 |
Author: cops |
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Description: 基本OFDM訊號在IEEE 802.11a架構下利用pilot估測CFO的原始碼-IEEE 802.11a OFDM signal in the basic framework used to estimate the CFO pilot source
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Size: 1024 |
Author: 范夢葳 |
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Description: 基本OFDM訊號在IEEE 802.11a架構下利用pilot估測CFO整數ML估測小數和pilot估測剩餘CFO的原始碼-IEEE 802.11a OFDM signal in the basic framework of integer CFO estimation using pilot and pilot ML estimate fractional CFO estimation of the remaining source code
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Size: 2048 |
Author: 范夢葳 |
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Description: 基于OFDM信道冲击响应和信道估计的matlaB仿真代码。值得借鉴！-Based on OFDM channel impulse response and channel estimation matlaB simulation code. Worth learning!
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Size: 1024 |
Author: 刘高星 |
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Description: 3GPP-LTE下频偏估计算法的研究，包含了三种算法。基于PSS的算法，基于CP的算法和基于MUSIC的算法-An efficient CFO estimation algorithm for the downlink of 3GPP-LTE
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Size: 514048 |
Author: 谈 |
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Description: cfo adding and tracking matlab code in ofdma
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Size: 1024 |
Author: prk |
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Description: 这是基于MIMO-OFDM的对CFO进行估计的源程序，对分析此同步算法有着非常重要的作用。-This is based on the source of the MIMO-OFDM of the CFO estimation, on the analysis of this synchronization algorithm has a very important role.
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Size: 58368 |
Author: 郭定平 |
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Description: Time Frequency Multiplex Preamble Design for Joint I1Q Imbalance, CFO and Channel Estimation in OFDM Systems
IEEE Paper
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Size: 1665024 |
Author: RITEN PATEL |
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Description: cfo optimazation algorithm cfo optimazation algorithm cfo optimazation algorithm-cfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithm
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Size: 241664 |
Author: aminfpga |
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