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 studies the distributed fusion Kalman filtering problem for a class of cyber-physical systems (CPSs), where multiple sensors are arbitrarily deployed to jointly sense the state of underlying physical systems, and the sensor measurements are directly sent to the corresponding sink node. When each local estimate obtained by the sink node is transmitted to a remote information fusion center...
This paper is concerned with the problem of distributed fault estimation for networked systems using quantized measurements. In the proposed distributed scheme each estimator provides a fault estimate by adopting both its local measurement and information from neighbors, which are quantized before transmission due to the limited bandwidth resource. A sector bound approach is firstly introduced to...
A high-efficiency vertical binary blazed grating coupler is proposed. An 83% of efficiency and 65nm 3dB bandwidth are demonstrated. The tolerance of incident angle is 11.5°.
In hybrid wireless network (HWN), delay is always an important parameter to evaluate the QoS performance. Previous works have studied the average delay of all transmitted packets. However, QoS guarantee is commonly provided for a certain data flow. In this paper, a stochastic network calculus (SNC) based approach is proposed to analyze the stochastic end-to-end delay of a data flow through HWN. Linear...
Video delivery in TV White Space (TVWS) is a challenging task due to the variation of the spectrum availability in TVWS and the stringent bandwidth requirements of video streaming. Most existing frameworks employ an opportunistic spectrum access style which result in bandwidth inefficiency since only one spectrum hole in white space can be used. In this paper, we propose a bandwidth efficient white...
Wireless Sensor Network is the most useful in many applications. The latest researches are available for this area. Many innovations about energy efficiency of wireless sensor networks are explored in the presented paper. The applications of Wireless Sensor Networks provided many benefits to health care, industries and scientific areas. The paper focuses on the research about the Wireless Sensor Network...
Cognitive radio is an exciting emerging technology that has the potential of dealing with the urgent requirement and scarcity of the radio spectrum. Although having multiple radio interfaces and available spectrum bands can generally increase the effective throughput, a problem arises as to what the best strategy to dynamically assign available bands to secondary users for maximizing throughput by...
High concentration of users in a cell of a wireless LAN leads to an unsustainable traffic load at the access point (AP). An unsuitable solution to the problem will cause poor connectivity for users, severe performance degradation, and possible collapse of the wireless LAN. In this paper, we present a scheduler based on queue length at the AP and a congestion control scheme based on the channel utilization...
In order to eliminate oscillation arisen from AIMD window control strategy in TCP, an adaptive PI rate controller (PI-RCA) was proposed to smooth the traffic and to prevent network from congestion. Theoretical analysis and simulation evaluation showed that PI-RCA can make flow control system achieve stability robustness and adapt to sudden changes in network environment, thus providing the network...
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.