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.
Here three subwavelength multiband receiving antennas have been designed using corrugated ring resonator printed on a thin dielectric substrate with spiral-shaped defect ground structure (DGS). Numerical simulations verified that these multiband antennas have multiband with a small size of only 0.1λ*0.1λ. In addition, a 2*2 antenna array has been proposed and numerically demonstrated that the gain...
This paper studies the problem of correlated data gathering in wireless sensor networks. For a maximum network utility, a efficient data capture and transmission framework is proposed for correlated sources, where localized S-W source coding, network coding based flow control and opportunistic routing are jointly optimized. To increase the throughput and guarantee the decodability simultaneously,...
This paper studies the power consumption performance and resource allocation optimization in wireless video sensor networks. Network coding based multipath routing, network flow control and video encoding bit rate are jointly optimized, aiming to maximize the network lifetime at a given power budget and video quality requirement. Importantly, to concretely measure the network coding power utilized...
Wireless video sensor networks (WVSNs) feature the characteristics of easy deployment and low maintenance cost and therefore are suitable for a wide range of important applications, including remote surveillance, health care delivery and traffic control systems. Compared to traditional communication systems, Sensor nodes in WVSN operate under resource constrains such as power supply and transmission...
In wireless sensor networks, Energy efficiency is the most important performance target to prolong the networks lifetime. As the idle listening of sensor nodes result in primary energy waste, many typical MAC protocols are designed to save power by placing the radio in the low-power sleep mode, however, such schemes can lead to sleep latency problems in multi-hop transmissions. This paper analyses...
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.