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[Other] BCFO DL : 0: 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.
Update : 2025-02-17 Size : 1.21mb Publisher : 吴大亨
[matlab] Musysid DL : 0: 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
Update : 2025-02-17 Size : 10kb Publisher : bachka
[Program doc] simp_CFOest_mimoofdm DL : 0: simple CFO estimation in mimo ofdm
Update : 2025-02-17 Size : 1kb Publisher : murali
[Communication-Mobile] CFO DL : 0: carrier frequency offset method in WLAN - in document
Update : 2025-02-17 Size : 2.37mb Publisher : seungyerl Lee
[Communication] CFOsimutemp2varying DL : 0: carrier frequency offset CFO模擬-carrier frequency offset CFO simulation
Update : 2025-02-17 Size : 6kb Publisher : leolin
[matlab] ref2_off_estoff DL : 0: good matlab code about cfo in mimo ofdm
Update : 2025-02-17 Size : 1kb Publisher : eng_dina
[matlab] getPDF1 DL : 0: 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
Update : 2025-02-17 Size : 962kb Publisher : ashish
[matlab] getPDF2 DL : 0: 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
Update : 2025-02-17 Size : 711kb Publisher : ashish
[matlab] OFDMFREQUENCYOFFSET DL : 0: 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)..
Update : 2025-02-17 Size : 1kb Publisher : murugan
[Software Engineering] seminar030606 DL : 0: about Carrier frequency offset(CFO)
Update : 2025-02-17 Size : 953kb Publisher : jot
[matlab] assigning_offset DL : 0: Add CFO in OFDM... straight forward implimentation matlab
Update : 2025-02-17 Size : 1kb Publisher : cops
[matlab] cfoo_esst DL : 0: cfo freq offs etimation
Update : 2025-02-17 Size : 1kb Publisher : cops
[3G develop] OFDM_3_5 DL : 0: 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
Update : 2025-02-17 Size : 1kb Publisher : 范夢葳
[3G develop] OFDM_3_6 DL : 0: 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
Update : 2025-02-17 Size : 2kb Publisher : 范夢葳
[matlab] OFDM-CFO DL : 0: 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!
Update : 2025-02-17 Size : 1kb Publisher : 刘高星
[3G develop] CFO-estimation-algorithm DL : 1: 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
Update : 2025-02-17 Size : 502kb Publisher : 谈
[matlab] cfo-in-ofdma DL : 0: cfo adding and tracking matlab code in ofdma
Update : 2025-02-17 Size : 1kb Publisher : prk
[Other] CFO DL : 0: 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.
Update : 2025-02-17 Size : 57kb Publisher : 郭定平
[Program doc] Time-Frequency-Multiplex-Preamble-Design-CFO-in-O DL : 0: Time Frequency Multiplex Preamble Design for Joint I1Q Imbalance, CFO and Channel Estimation in OFDM Systems IEEE Paper
Update : 2025-02-17 Size : 1.59mb Publisher : RITEN PATEL
[Algorithm] cfo DL : 0: cfo optimazation algorithm cfo optimazation algorithm cfo optimazation algorithm-cfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithmcfo optimazation algorithm
Update : 2025-02-17 Size : 236kb Publisher : aminfpga

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