Buffer Sizing for 802.11 Based Networks

Abstract:-
We consider the sizing of network buffers in 802.11 based networks. Wireless networks face a number of fundamental issues that do not arise in wired networks. We demonstrate that the use of fixed size buffers in 802.11 networks inevitably leads to either undesirable channel under-utilization or unnecessary high delays. We present two novel dynamic buffer sizing algorithms that achieve high throughput while maintaining low delay across a wide range of network con ....etc

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AN EFFICIENT APPROACH FOR CAPACITOR SIZING AND LOCATION ON A RADIAL DISTRIBUTION SYSTEM USING ARTIFICIAL INTELLIGENCE TECHNIQUE




INTRODUCTION

The analysis of the customer failure statistics of most
utilities indicates that the distribution system makes the
greatest individual contribution to the unavailability of
supply to a customer. Therefore, the analysis of a
distribution system is an important area of activity. It is
well known that losses in a d ....etc

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Abstract
This paper presents a general model of dual infeedHVDC system applying VSC-HVDC, which can be used as anelement in large multi infeed HVDC system. The model may havedifferent structure under different grid faults because of theaction of breakers. Hence power flow of the system based on thismodel is analyzed under steady state and different kinds of gridfault transient situations. Two main control methods applied onVSC-HVDC page link in this dual infeed HVDC system areinvestigated, and comparative analysis of them under transie ....etc

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ABSTRACT
Urban electrical power systems with steep demand increase need easily located solutions with short lead time from decision to transmission. While AC cable solutions can offer sufficient power ratings, the problems of load controllability and short circuit power increase with every added circuit. These problems may be countered with Voltage Source Converter (VSC) based technology using Cables for transmission, such as HVDC Light. This technology offers up to 500 MW per station with small footprint, ideal for in feed to city ....etc

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An improvised MOS transistor model suitable for
Geometric Program based analog circuit sizing in
sub-micron technology

A special monomial form of the device model is required by the Geometric program. This article describes the work done in identifying the sources of inaccuracy in this basic model. The strict monomial form has been relaxed. the sizing problem is solved as a series of geometric programs instead of solving it considering as single entity. a folded-cascode op-amp sizing example is used to describe the efficiency of t ....etc

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Voltage Source Converter (VSC) based HVDC transmission systems are available in market for power rated between a few MVA to a few hundreds of MVA. The new system results in many application opportunities and new applications in turn bring up new issues of concern. This paper aims at exploring the HVDC transmission systems and also presents a comprehensive investigation on one of the concerned issues, which is the contribution of HVDC Light? to short circuit currents. Different AC network conditions, load conditions and fault types are considere ....etc

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My project involves comparing some of the wireless applications in use today by studying how they work. Then focusing on WIMAX (IEEE 802.16 standard) which is a part of wireless LAN , the project will deal with the study of the various intrusion attempts and interruptions that it is faced with and their detection. It would also involve a study of the encryption and decryption schemes used. Then finally it would deal with the development of Wireless Intrusion Detection System (IDS) that would attempt to identify computer system and network intru ....etc

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SITING AND SIZING OF DISTRIBUTED GENERATION
UNITS USING GA AND OPF
ABSTRACT
This paper deals with the important task of finding the optimal siting and sizing of
Distributed Generation (DG) units for a given distribution network so that the cost
of active and reactive power generation can be minimized. The optimization tech-
nique is based on Genetic Algorithm (GA) and Optimal Power Flow (OPF) calcu-
lations. Using the suggested technique of this paper, the search space of GA is lim-
ited and the optimum generation ....etc

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Need powerpoint presentation on hvdc light city infeed with hvdc light and extruded cables ....etc

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STATCOM-controlled HVDC Power Transmission for Large
Offshore Wind Farms: Engineering Issues
Abstract –
The paper considers a solution for integration of
large offshore DFIG-based wind farms with a common collection
bus controlled by a STATCOM into the main onshore grid
using line-commutated HVDC connection. A design procedure
is described and the controlled system is validated using
PSCAD/EMTDC simulations confirming high performance of
the proposed control strategy in both normal operation conditions
and faults. Engineeri ....etc

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