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This paper considers a group of mobile agents moving in Euclidean space with switched network topology. We propose a feedback control algorithm that achieves velocity consensus with weighted directed switched velocity graph and stabilize all position neighboring agents inter-distance to a same desired value. The main results are that the position and velocity graph remaining connected are satisfied...
A joint power system state and topology estimator based on a combined Weighted Least Squares (WLS) and Weighted Least Absolute Value (WLAV) strategy is proposed. The resulting coestimation algorithm is devised to simultaneously provide estimates to the analog power system variables and validate the current topology of the electric network. This is accomplished by formulating state & topology coestimation...
Limit violations may occur by power systems operation, such as: voltage level at buses, loadings of transmission lines and power transformers, etc.. If violations are detected in the supervision process, corrective measures may be carried out in order to eliminate them or to reduce their intensity. Loading shedding is an extreme solution and should only be adopted as the last control action. It is...
Today's Internet is facing many problems which did not take into account in its initial design, such as routing scalability, mobility and security. No matter evolutional or revolutionary solutions that are proposed in recent years, a recognized promising direction is to separate customer network from core network and separate identification from location. In this paper, we sketch out an architecture...
As researchers continue to architect massive-scale systems, it is becoming clear that these systems will utilize a significant amount of shared hardware between processing units. Systems such as the IBM Blue Gene (BG) and Cray XT have started utilizing flat (i.e., scalable) networks, which differ from switched fabrics in that they use a 3D torus or similar topology. This allows the network to grow...
This paper proposes a full-swing charge pump with zero phase offset for charge pump PLL (CP-PLL). The origins of phase offset are discussed and theoretically analyzed. Standard topologies for phase offset improvement are discussed and a new charge pump topology with zero phase offset and full-swing output is presented. Simulation results are presented to show the excellence of charge pump zero phase...
This paper reviews an analog multiplier and divider using only single multiple-output current controlled current through transconductance amplifier (MO-CCCTTA). The proposed circuit can function as a four-quadrant multiplier and two quadrant divider without changing original circuit topology. A constant value of multiplication and division can be controlled via an input bias current and temperature-insensitive...
Precise information of MAC layer topology is important for both network management and network analysis. There are many topology discovery algorithms based on the address forwarding tables but they supposed that the network to discovery hasn't redundant links or these algorithms are not effective to discover redundant links. In this paper, we present algorithms based on address forwarding tables (AFT)...
This paper gives a quantitative analysis of the main mechanisms setting fundamental limits to the linearity performances of CMOS direct down-conversion mixers. An advanced low voltage solution is proposed for 3G cell-phones in a 90 nm CMOS technology that achieves: 3nV/radicHz average input referred noise in the band from 10 kHz to 1.92 MHz, a flicker noise corner of 300 kHz, 9 dBm IIP3 and 75 dBm...
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