[PDF] Top 20 Blind Maximum-Likelihood Carrier-Frequency-Offset Estimation for Interleaved OFDMA Uplink Systems

... very high. The distinct feature of the proposed algorithm is that it only requires a root-searching procedure. The main idea is to use a series expansion when evaluating the ML function. The performance of the expansion ... See full document

... a maximum likelihood (ML) CFO estimation method for such ...disadvantageous for real-world ...the likelihood function directly and thereby perform CFO ...need for the ... See full document

... channel’s maximum delay spread is shorter than the length of the cyclic ...Doppler frequency of approximately 463 Hz when the carrier frequency is 5 GHz, we plot the corresponding MSE ... See full document

... receiver. For the sake of clarity and brevity of the presentation, only the estimates for the CFO vector f m as well as the interference-plus-noise vector correlation matrix R are ...joint estimation ... See full document

... 802.11g for WLAN was adopted as a reference-design platform to evaluate the per- formance of the proposed ...symbols for coarse estimation, and two long preambles for fine ...the ... 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

... accurate estimation of the frequency offset is ...approaches for the frequency-offset estimation using the pre- amble data [6], [7], the cyclic prefix data [8], [9], or the ... See full document

... assisted frequency offset estimation, channel vector estimation and RAKE combining give the desired signal ...presented for a multiuser ...large frequency offsets and resistance ... See full document

... The carrier frequency offset can he estimated by first calculating the pilot-suhcarrier phase difference between two OFDM symbols, removing the quantity contributed by the [r] ... See full document

... methods for analyzing such data critically rely on the assumption that the truncation variable is quasi-independent of the variable of ...a likelihood-based inference approach under the assumption that the ... See full document

... In this paper, the ambiguity function method is used t o estimate the carrier phase integer ambiguities.. On the other hand, an appropriate algorithm for determining[r] ... See full document

... V. S IMULATIONS We use Monte Carlo simulations to evaluate the performance of the synchronizers, and consider an OFDM system of N = 256 subcarriers and a guard interval of N G = N/8 = 32 samples. Only data subcarriers ... See full document

... neither the log-likelihood nor the total variation require knowledge of the ideal image, the combination of both can be used also in the evaluation of the SPECT reconstruction. Figure 3 shows plots of both figures ... See full document

... neither the log-likelihood nor the total variation require knowledge of the ideal image, the combination of both can be used also in the evaluation of the SPECT reconstruction. Figure 3 shows plots of both figures ... See full document

... (SNR) estimation is desirable for all sorts of operations involved in high- performance baseband ...a blind SNR estimation scheme for the phase-shift keying (PSK) signals based on the ... See full document

... Point Estimation In this chapter, the basic terminology and concepts of parametric point estimation were introduced ...of estimation to be discussed here are those listed in the first section of the ... See full document

... channel estimation algorithms preset a fixed length for the channel. For wireless communications, however, the actual length of the channel is ...value for the length of the channel estimator ... See full document

... a blind channel estimation scheme for single-carrier frequency-domain equalization-based space–time block coded ...framework for improving solution accuracy when imperfect data ... See full document

... Moreover, the ML methods can alleviate the mutual can- cellation effect caused by the coherent sources and provide high estimation accuracy. However, the multi-dimensional optimization nature of the ML methods ... 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 techniques or multiple ... See full document