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 method can be complete by three step. First, Find the main cycle through FFT. Second, decide the embedding dimension. Third, forecast by using the chaos model. According the characteristic of road traffic flow and the evidence showed that the prediction is effectively. So it is able to being used in actual prediction.
Most of existing transfer protocols performs poorly for transferring bulk data over fast long distance network. A key reason is the congestion control algorithm. This paper designs a novel congestion control algorithm, namely congestion detection and rate adaptation (CDRA) algorithm, which adjusts sending rate according to the congestion level of terminal in order to maximize transfer performance...
An improved 32-bit carry-lookahead adder (CLA) with conditional carry-selection (CSS) is proposed in this paper. The new adder is compared with serial adder and pure carry-lookahead adder. The three adders is simulated in FPGA circuits, the results show that the propagation time of the carry of the new 32-bit adder is reduced 26% compared with Serial Adder and 3.17% with pure Carry-Lookahead Adder.
Fast and seamless handover are weighty issues in 3G systems. Based on UMTS and WLAN Converging architecture, a joint vertical handover decision strategy (jVHOD) was proposed for heterogeneous wireless networks. Also, several significant metrics were evaluated through a vertical handover performance model, which was validated by computer simulation. The analytical results showed that jVHOD had better...
Location based routing protocols are often used to deliver packets in VANET for the sake of scalability and lower overhead. Before exchanging information between moving vehicles, the location of destination node should be discovered. However, the existing location service employed in MANET is not very suitable for vehicular ad hoc network. In this paper, a vehicle location service protocol (VLS) is...
In this paper, we model the hierarchical structures inherent in cognitive radio networks as the priority queueing system in which primary users interact with the highest priority and secondary users belong to the lowest priority class. In a M/G/l system containing one primary user and multiple secondary users, we obtain analytical forms of delay and throughput for different users with the function...
In this paper, discrete Hopfield neural networks with weight function matrix (DHNNWFM) and discrete Hopfield neural networks with weight function matrix and delay (DHNNWFMD) are introduced. And the stability properties of DHNNWFMD that weight function matrix is a symmetric function matrix are studied. And we obtain a important result that If the weight function matrix is a symmetric function matrix...
This paper describes a practical settling time analysis of the charge-pump phase-locked loop (PLL) by considering nonlinear circuit effects on transient settling behavior; a PLL slew rate, a PFD reset delay, and a loop filter charge sharing. A transient analysis including those parameters with a refined lock-in range is given, showing that the overall settling time can be significantly affected by...
WiMAX technology is a good candidate to provide broadcast TV services for mobile users because it supports QoS based multicasting functionality. To provide multicast-based TV services over the mobile WiMAX network, a multicast session setup involves both MAC-layer and IP-layer multicast management. However, in mobile environment, IP-layer multicast management entails service interruption due to unreliable...
VANET is an ad hoc network composed of highly mobile vehicle nodes. Many routing protocols utilize traffic information as a critical metric for determining optimal message forwarding path. The existing traffic information systems are not suitable for routing decision either because of the huge development and maintenance cost or due to the insufficient information provision. In this paper, a new distributed...
This paper considers a robust H∞ filtering problem for a class of neutral delay differential uncertain systems with polytopic type uncertainty. The main purpose is to obtain a stable linear filter such that the filtering error system is robustly stable and guarantees a pre-specific H∞ attenuation level or an (almost) optimal H∞ attenuation level γ. Sufficient conditions are stated in terms of LMIs...
This paper presents a study on scaling properties of polarization mode dispersion of spun fibers in the presence of random mode coupling. Simple equations are obtained for both optimal and non-optimal spin conditions
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.