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.
Heterogeneous cloud radio access networks (H-CRANs), which take a separation of the remote radio units (RRHs) from the baseband units (BBUs), is considered to be a promising architecture for the future network due to its competitive advantages in both spectral efficiency and energy efficiency (EE). The RRH is mainly used to provide high data rate for mobile users (MTs) with high quality of service...
A new auto-tuning method is presented in this paper for the TITO process with time delay. The first step is to identify the process model and the second step is to design the IMC-PID controller. In the identifying procedure, both the bias relay test and the idea relay test are involved to identify the model. The important feature of the proposed method is that it does not require the prior information...
In this paper, a new sequential relay feedback method for the tuning of decentralized PID controllers in intelligent coordinated control systems (CCS). Based on the specified phase and gain margin, the parameters of the fuzzy self-adjusting PID controllers and the fuzzy gain scheduling PID controllers are determined. The scheme is implemented through the function code in typical DCSs (EDPF-NT, XDPS,...
A new multi-user two-way transmission network is considered to fully utilize wireless system resource, and ensure transmission reliability, with assistant of an amplify-and-forward relay. In multiple access channel (MAC) phase, signal space alignment technique is employed, which cancel the multi-user interference. In broadcast channel (BC) phase, a new multiple-input multiple-output (MIMO) precoding...
This paper is a tutorial intended to give protection engineers a better understanding of how vector matching fundamentals are applied to transformer differential schemes. The need for a concise, methodical approach to vector matching has become evident through numerous lessons learned during substation commissioning. Particular examples of lessons learned from autotransformer standardization projects...
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.