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.
In this paper, we propose a new method to derive a family of regular rate-compatible low-density parity-check (RC-LDPC) convolutional codes from RC-LDPC block codes. In the RC-LDPC convolutional family, each extended sub-matrix of each extended code is obtained by choosing specified elements from two fixed matrices HkE1 and HkE2, which are derived by modifying the extended matrices HE1 and HE2 of...
Inefficient resource utilization of communication cell and base station is the major limitation of traditional Radio Access Network (RAN), which makes Cloud Radio Access Network (C-RAN) becomes a promising infrastructure. C-RAN data centers face physical constraints in space and power, so the efficient utilization of hardware is more critical. General multi-core processors are universally used in...
Cognitive radio networks (CRNs) significantly improve spectrum utilization efficiency by allowing secondary users (SUs) to opportunistically share unused spectrum bands with primary users (PUs). In this paper, we present a spectrum assignment model and propose a genetic algorithm (GA) and a heuristic algorithm to determine the proper spectrum assignment, which optimizes the SUs' reward and the network...
To improve the quality of images collected by the wireless capsule endoscope (WCE) and to decrease the system energy consumption, we proposed a novel design of WCE. This WCE system integrates a CMOS sensor with an optional JPEG compression engine, a low power consumption high-performance micro-controller and an ultra low power RF transceiver in a small capsule (less than 10 mm × 25 mm). Experiment...
Ultra-wideband (UWB) is proposed to realize high-rate transfers in indoor environment. The long delay spread of UWB channel would cause excessive inter symbol interference (ISI), which results from an overlap of over dozens of symbols. Thus, ISI is a major challenge for the design of a receiver for high-rate IR-UWB system. To mitigate ISI, an all-digital fractionally spaced linear center (FSLC) equalization...
In this paper we present a novel wireless acquisition system for the real ambulance field which could be equipped on ambulance vehicle to realize pre-hospital treatment for patients. The distinctive feature of the system is that it can not only provide biomedical information including the oxygen saturation, the ECG, the blood pressure, the temperature and the heart rate of patients, but also supply...
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.