MIMO-OFDM Channel Estimation in the Presence of copyright Frequency Offset

MIMO-OFDM Channel Estimation in the Presence of copyright Frequency Offset

Blog Article

A multiple-input multiple-output (MIMO) wireless communication system with orthogonal frequency division multiplexing (OFDM) is expected to be a promising scheme.However, the estimation of the copyright frequency offset (CFO) and the channel parameters is a great challenging task.In this paper, a maximum-likelihood- (ML-) based algorithm is Algoritmos genéticos aplicados a la optimización de antenas Yagi-Uda Genetic algorithms applied to Yagi-Uda antenna optimization proposed to jointly estimate the frequency-selective channels and the CFO in MIMO-OFDM by using a block-type pilot.

The proposed algorithm is capable of Association between Serum Cystatin C and Diabetic Foot Ulceration in Patients with Type 2 Diabetes: A Cross-Sectional Study dealing with the CFO range nearly useful OFDM signal bandwidth.Furthermore, the cases with timing error and unknown channel order are discussed.The Cramér-Rao bound (CRB) for the problem is developed to evaluate the performance of the algorithm.

Computer simulations show that the proposed algorithm can exploit the gain from multiantenna to improve effectively the estimation performance and achieve the CRB in high signal-to-noise ratio (SNR).