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.
This paper investigates the power control problem for parallel amplify-and-forward OFDM relaying networks under hybrid power constraints across relays. Based on the concavity of the objective function, an iterative algorithm, which definitely converges to the optimal solution, is firstly proposed for the special case where the aggregate constraint could be ignored. Then, for the general case where...
In this paper, we investigate the power allocation optimization problem for dual-hop nonregenerative OFDM relaying networks, where an aggregate power constraint is imposed on all relays. We first formulate the model into a single-parameter optimization problem, in which we found the related functions are monotonically decreasing. Then based on the monotonicity, we propose a bisection algorithm to...
Accurate estimation of chlorophyll a (Chla) in inland turbid lake waters by means of remote sensing is a challenging task due to their optical complexity. In order to explore the best solution, we observed water quality parameters and measured water reflectance spectra in Lake Taihu for 14 days in November 2007. After initial wavelength analysis and iterative optimization, the best three-wavelength...
Mumford-Shah piecewise smooth functional is a variational PDE model widely used in image segmentation and smoothing. An analogous discrete model which models image as an MRF has also been built. In this paper, we propose another discrete Mumford-Shah piecewise smooth model on lattice from a different perspective. We present a discrete objective functional, as well as the method to find the solution...
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.