1/4/2024 0 Comments Procoding blind estimationReferences Īssume non-Gaussian sources, constant-modulus and cyclostationarity. Although subspacebased MUSIC and ESPRIT methods enjoy better CFO estimation performance, they are spectrum inefficient because Ĭompared with, blind CFO estimation methods Well as cyclostationarity based approach. Rotational invariant technique (ESPRIT), kurtosisbased and constant modulus-based estimator as In general, can be divided into two types: one is nonblind CFO estimation methods, including based on pilots or training sequence, pseudo-noise sequence Īnd the cyclic prefix, while the other is blind CFOĮstimation methods, including multiple signal classification (MUSIC), estimation of signal parameters via (2009ZC52036), and Nanjing University of Aeronautics and Astronauticsįor OFDM systems has been conducted in, which, This work was supported by the National Natural Science Foundation of China (60801052), the Aeronautical Science Foundation of China The research on CFO estimation algorithms Hence, it is necessary to estimate and compensate the CFOīetween transmitter/receiver to ensure the subcarrier orthogonality. Besides of these, high sensitivity to the carrier frequency offset (CFO) has also been widely considered as a weaknes s. Yet thereĪre some inherent problems, including time-synchronousĮrror and inter-carrier interference, existing in OFDM. The next generation of mobile communications. OFDM, known as an efficient technique for high-speed digital transmission over multipathįading channels, provides a fast-developing technology for MCM contains orthogonal frequency division multiplexing (OFDM) and multi-carrier code division multiple access. Multi-carrier modulation (MCM) is the principle of transmitting data by dividing the stream into several parallelīit streams, each of which has a much lower bit rate,Īnd uses these substreams to modulate several carriers. Keywords: carrier frequency offset (CFO), orthogonal frequencyĭivision multiplexing (OFDM), generalized precoding, trilinear Illustrate the performance of this algorithm. Furthermore, the proposedĪlgorithm can work well without virtual carriers. Invariant technique (ESPRIT), the proposed algorithm enjoys aīetter CFO estimation performance. Compared with both the jointĭiagonalizer and estimation of signal parameters via rotational Trilinear model, and then a novel CFO estimation algorithm is To obtain multiple covariance matrices which are requisite for the Firstly, the generalized precoding is employed (OFDM) systems by utilizing trilinear decomposition and generalized precoding. (CFO) estimation for orthogonal frequency division multiplexing ChinaĪbstract: This paper discusses the blind carrier frequency offset Generalized precoding and trilinear modelĮlectronic Engineering Department, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. Journal of Systems Engineering and Electronicsīlind CFO estimation algorithm for OFDM systems by using
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