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.
Adaptive nonlinear output feedback control of GD-FNN(generalized dynamic fuzzy neural network) for underwater robot motion control using forming filter for wave disturbance is presented. This method completely construct nonlinear and uncertain parts of underwater robot by online adaptive learning algorithm without knowing fuzzy neural structure and training phase in advance. Output feedback control...
Orthogonal frequency division multiplexing (OFDM) is an effective technique for combating radio channel multipath fading and for high-bit-rate transmission over wireless channels and it is extensively used in modern wireless local area network systems to support high performance bandwidth-efficient multimedia services. Easily applied channel estimation and simple channel equalization are important...
In orthogonal frequency division multiplexing networks, inter-cell interference results in poor performance, especially universal frequency reuse scheme has already been used. Soft Frequency Reuse (SFR) scheme, one of the most promising inter-cell interference coordination (ICIC) schemes, has been introduced in LTE-Advanced networks. In this paper, We develop an analytical queueing model for the SFR...
The 3GPP is defining the next generation radio access network which introduces advanced self- optimization to reduce the operational efforts and complexity. It is also of interest to minimize operational effort by introducing self-optimizing mechanisms. Optimization of the handover parameters is an important goal of LTE-Advanced. In this paper, a new self- optimizing handover algorithm based on the...
WLAN (wireless local area network) access providing high data rate has recently been deployed and worldwide extended. Most of WLAN standards are OFDM-based (orthogonal frequency division multiplexing) because of the good behavior of this technique in multi-path radio channels. However, several aspects have to be taken into account when an OFDM system is implemented. One of the most critical issues...
In this paper, we propose a practical, efficient and real-time technique to estimate the end-to-end available bandwidth in the condition of probe packets losing. One of main ideas of the proposed technology is compensation mechanism, which uses a least square method to approximately compensate the losing packets based on polynomial-mimesis technology in the communication channel. The second is that...
In order to suppress effectively the effects of RSSI error to wireless sensor networks node localization's precision in pervasive computing environment, individual diversity difference coefficient, distance difference coefficient and distance difference localization equation is defined based on the analysis of the models of maximum likelihood estimation and RSSI. The closest beaconing node to object...
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.