[PDF] Top 20 Blind SNR Estimation with Coherent Function for OFDM Systems

... In OFDM receivers, an accurate signal-to-noise ratio (SNR) estimation is desirable for all sorts of operations involved in high- performance baseband ...conventional SNR esti- mation ... See full document

... method for CP-free OFDM systems which applies the VCs, referred to as the Li method hereafter, was presented in ...constructed for SISO-OFDM systems without oversampling ... See full document

... Using the time-domain periodicity, which can be obtained by inserting zeros at some positions of frequency-domain OFDM symbols, a method for constructing the noise subspace is develop[r] ... See full document

... channel estimation for single-user OFDM systems ...gains for single-user OFDM ...proposed for a single-user OFDM system without cyclic ...subspace-based ... See full document

... In the third experiment, we apply the proposed method to 200 2-input 4-out random channels with L = 4 to demonstrate the performance. We use M = 36 and P = 4 to maintain the transmission efficiency at 90%. Each ... See full document

... ST Estimation Performance: For the ST estimation, we compare the proposed technique with the following blind or NDA techniques: (a) Blind minimum-interference ST syn- chronizer ... See full document

... preamble with more than two pe- riods is ...CFO estimation method for such ...polynomial function, which is disadvantageous for real-world ...likelihood function directly and ... See full document

... Channel Estimation for OFDM Systems With Power–Delay Profile Approximation Kun-Chien Hung and David ...channel estimation for multicarrier systems, one needs to ... See full document

... Weighting Function in OFDM Systems Yi-Ching Liao, Student Member, IEEE, and Kwang-Cheng Chen, Senior Member, IEEE Abstract— Phase noise resulting in Common Phase Error (CPE) and Inter-Carrier ... See full document

... the estimation theory, for example, the ML ...dealt with this problem by maximizing the ...structure. For the MSINR synchronization algorithm, two blind SINR estimations have been ... See full document

... channel estimation technique for multicarrier ...linear function and a linear-phase factor, where the linear-phase factor may be equiv- alently modeled in the time domain as a reference delay dubbed ... See full document

... index. SNR = 15 dB. Figs. 4 and 5. The estimated ST as a function of the sym- bol index at SNR = 15 dB is shown in ...searches for the whole symbol duration, its acquisi- tion time is ... See full document

... SIT). SNR = 10 dB, CR = 6 dB, N f = 512, and K = 10 are used throughout all CCDF simulations in this ...4. For 2 × 2 SIPR, two of the redundant vectors are used for channel estimation ... See full document

... (CFO) estimation is considered to be difficult in interleaved orthogonal frequency-division multiple-access (OFDMA) uplink ...the estimation of signal parameters via the rotational invariance technique have ... See full document

... density function (PDF), as shown in ...frequency estimation versus signal-to-noise ratio (SNR) under different IQ-M ...that for almost the entire SNR range, the P-CFO algorithm under ... See full document

... taps with an exponentially decaying power delay pro- file of the root mean-squared width equal to ...squared estimation errors of the frequency offset and the time offset, averaged over 1000 trials, versus ... See full document

... sion with cyclic prefix (CP) 1 [10], in which the transmitter implements a non-redundant diagonal precoder and, at the receiver the channel information is acquired through the precoding-assisted blind ... See full document

... that for channels with high frequency response variations, a large enough 𝑅 will produce a small average gain over the covered 𝑅 subcarrier channel frequency ...However, for the consideration of ... See full document

... sponse and common phase error to carry out equalization on ri,d, then the equalized results are sent to the detection block to get the decisions. Since accurate channel estimation in OFD[r] ... See full document

... According to the proposed iterative approaching algorithm, the global maximum of log-likelihood function can be definitely found to achieve both frequency and time synchronization[r] ... See full document