The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A subspace approach for blind channel estimation in SIMO-OFDM systems without cyclic prefix is proposed in this paper. By exploiting a repetition index in the signal model, our algorithm generalizes the conventional subspace approach. The computational complexity of the singular value decomposition (SVD) operation in the proposed method is lower than that in other subspace approaches. Additionally,...
A subspace-based blind channel estimation algorithm for OFDM systems with the conjugate-symmetric property is proposed in this paper. In subspace-based algorithms, construction of the signal or noise subspace is an important issue. Different to other subspace-based approaches exploiting the signal or noise subspace from cyclic prefix, virtual subcarriers, or oversampling techniques, we develop a blind...
A subspace-based blind channel estimation algorithm with cyclic prefix is proposed in this paper. A systematic approach is used to construct a new signal matrix in the proposed algorithm. Compared with conventional blind channel estimation algorithm, the proposed algorithm has lower computational complexity and higher probability of full row rank for the corresponding signal matrix. In addition, fewer...
A modified subspace-based blind channel estimation algorithm for OFDM systems is proposed in this paper. A systematic approach is used to construct the signal matrix in the proposed algorithm. Compared with conventional subspace- based blind channel estimation algorithm, the proposed algorithm has lower computational complexity and higher probability of full row rank for the corresponding signal matrix...
Carrier frequency offset estimation is an important technique in receiver design of wireless communications. In many applications, sampled single frequency tone is selected as training symbols/sequence for frequency synchronization. Under this assumption, frequency offset estimation can be regarded as the problem of single frequency estimation. In this paper, an approximate maximum likelihood frequency...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.