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.
An H-infinity (H-inf) channel estimation algorithm is proposed for estimating the channels in MIMO-OFDM systems in the presence of carrier frequency offset (CFO). The goal is to contribute to an algorithm with low complexity, good estimate performance and better suppression to CFO. For this purpose, the H-inf with simplified objective function is first developed, and then, its computational load is...
In this paper, an H-infinity channel estimator, adopting simplified objective function, is introduced to multiple-input multiple-output with orthogonal frequency division multiplexing (MIMO-OFDM) systems. Next, the matrices inversions and multiplications are reduced by using the expectation maximum (EM) algorithm. Finally, the performance degradation due to the carrier frequency offset (CFO)) is improved...
In the Orthogonal Frequency Division Multiplexing (OFDM) system, pilot signals are transmitted for the receiving device to estimate the channel's response. The interval of such pilot is often designed to accommodate the devices under most extreme channel conditions or the average conditions of the environment. This scenario design either results in unnecessary overhead that could have been used for...
High-resolution parameter estimation techniques have recently been applied to jointly estimate multiple signal parameters. In this paper, we consider the joint frequency and 2-D DOA estimation problem. We define a novel space-time matrix which includes the information of incident frequencies and 2-D DOAs. The joint frequency and 2-D DOA estimation method used the defined space-time matrix is named...
ESPRIT is a high-resolution parameter estimation techniques based on the translational invariance structure of a sensor array, which has recently been applied to the problem of determining the directions and center frequencies of a number of narrowband sources in a band of interest. Here, we present a simple and efficient method for the joint angle-frequency estimation (JAFE), named as unitary-JAFE...
High-resolution parameter estimation techniques have recently been applied to jointly estimate multiple signal parameters. In this paper, we consider the joint angle and frequency estimation (JAFE) problem. We define a novel space-time matrix which includes the information of incident angles and frequencies. The joint angle and frequency estimation method used the defined space-time matrix is named...
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.