ABSTRACT

As the virtual centre of excellence in mobile and personal communications (Mobile VCE) moves into its second core research programme it has been decided to set up a fourth generation (4G) visions group aimed at harmonising the research work across the work areas and amongst the numerous researchers working on the programme. This paper outlines the initial work of the group and provides a start to what will become an evolving vision of 4G. A short history of previous generations of mobile communications systems and a discussion of t ....etc

[:=Read Full Message Here=:]

High-Speed Downlink Packet Access (HSDPA) (Sometimes known as High-Speed Downlink Protocol Access) is a 3G mobile telephony protocol in the HSPA family, which provides a roadmap for UMTS-based networks to increase their data transfer speeds and capacity. Current HSDPA deployments now support 1.8 Mbit/s, 3.6 Mbit/s, 7.2 Mbit/s and 14.4 Mbit/s in downlink.

Further speed grades are planned for the near future. The networks are then to be upgraded to HSPA Evolved, which provides speeds of 42 Mbit downlink in its first release.

In addition to ....etc

[:=Read Full Message Here=:]

Image Processing and Analysis


Introduction
Image Processing and Analysis can be defined as the act of examining images for the purpose of identifying objects and judging their significance Image analyst study the remotely sensed data and attempt through logical process in detecting, identifying, classifying, measuring and evaluating the significance of physical and cultural objects, their patterns and spatial relationship.

Digital Data
In a most generalized way, a digital image is an array of numbers depicting spati ....etc

[:=Read Full Message Here=:]

FIXED AND MOBILE WIMAX

ABSTRACT
Within the last two decades, communication advances have reshaped the way we live our daily lives. Wireless communications has grown from an obscure, unknown service to an ubiquitous technology that serves almost half of the people on Earth. Whether we know it or not, computers now play a dominant role in our daily activities, and the Internet has completely reoriented the way people work, communicate, play, and learn. However severe the changes i ....etc

[:=Read Full Message Here=:]

hello can u send me d infomation abt dis topic pls send me as soon as possible ....etc

[:=Read Full Message Here=:]

FIXED AND MOBILE WIMAX

ABSTRACT

Within the last two decades, communication advances have reshaped the way we live our daily lives. Wireless communications has grown from an obscure, unknown service to an ubiquitous technology that serves almost half of the people on Earth. Whether we know it or not, computers now play a dominant role in our daily activities, and the Internet has completely reoriented the way people work, communicate, play, and learn. However severe the changes in our lifestyle may seem to have been ov ....etc

[:=Read Full Message Here=:]

ABSTRACT
Third generation is the generic term used for the next generation of mobile communications systems. 3G will provide enhanced services to those - such as voice, text and data - predominantly available today.
Video on demand, high speed multimedia and mobile Internet access are just a few of the possibilities for users in the future. 3G Services will expand the possibilities of information and communication.
UMTS is a part of the International Telecommunications Union's (ITU's) 'IMT ....etc

[:=Read Full Message Here=:]

PLEASE,SEND ME FULL REPORT AND PPT ON IT. ....etc

[:=Read Full Message Here=:]

High Speed Downlink Packet Access (HSDPA) – A Means of Increasing Downlink Capacity in WCDMA Cellular Networks
Abstract:
The increasing demand for capacity in order to provide high data rate multimedia services in wireless environments necessitates enhanced radio transmission techniques and network protocol functionality. Such techniques have to be added to already existing mobile cellular networks, e.g. as provided by EDGE. For 3rd generation UMTS networks based on WCDMA, the High Speed Downlink Packet Access (HSDPA) is bein ....etc

[:=Read Full Message Here=:]

ABSTRACT

In recent years, Broadband technology has rapidly become an established, global commodity required by a high percentage of the population. The demand has risen rapidly, with a worldwide installed base of 57 million lines in 2002 rising to an estimated 80 million lines by the end of 2003. This healthy growth curve is expected to continue steadily over the next few years and reach the 200 million mark by 2006. DSL operators, who initially focused their deployments in densely-populated urban and metropolitan areas, are now challenged t ....etc

[:=Read Full Message Here=:]

Title: cognitive radio systems

Abstract

Efficient use of radio spectrum is a necessity for future wireless systems. While the vast majority of the frequency spectrum is licensed to different organizations, observations provide evidence that usage of the licensed spectrum is by far not complete

neither in the time domain nor the spatial domain. This material discusses basics of Cognitive radio (CR), classifications of

cognitive radio systems, cognitive system architecture, antenna design for cognitive radio system.

1. Introduction ....etc

[:=Read Full Message Here=:]

I M VIRAL SHAH.I STUDY IN B.E. LAST YEAR IN COMPUTER.I WANT REPORT ON HSDPA. ....etc

[:=Read Full Message Here=:]

A New Bit-Allocation Scheme for Coding of Digital Audio Using Psychoacoustic Modeling

Abstract:
In this paper we present a modified adaptive bit-allocation scheme for coding of audio signals using psychoacoustic modeling. Statistical redundancy reduction (lossless coding) generally gives compression ratios up to 2. We increase this ratio using perceptual irrelevancy removal (lossy coding). In this work MPEG-1 Layer-1 standard for psychoacoustic modeling is used and compression is improved by modifying the bit-allocation ....etc

[:=Read Full Message Here=:]

Presented by
Pradeep R


ABSTRACT
Hyperspectral imaging has been an area of active research and development, and hyperspectral images have been available only to researchers. With the recent appearance of commercial airborne hyperspectral imaging systems, hyperspectral imaging is poised to enter the mainstream of remote sensing. Hyperspectral images will find many applications in resource management, agriculture, mineral exploration, and environmental monitoring. But effective use of hyperspectral images requir ....etc

[:=Read Full Message Here=:]

HSDPA(High Speed Downlink Packet Access) improves system capacity and increases user data rates in the downlink direction, that is, transmission from the Radio Access Network to the mobile terminal. This module, which is designed to supplement the UMTS Air Interface tutorial, explores the HSDPA channel architecture along with the additional functionality required in the UMTS MAC (Medium Access Control) layer. The processes of adaptive modulation and coding along with procedures by which HSDPA data is scheduled for transmission across the air in ....etc

[:=Read Full Message Here=:]

CHAPTER 1
INTRODUCTION
In certain application fields where image processing is involved, the use of spectral information in the visible (VIS) and near infrared (NIR) range is critical. The systems for spectral measuring can be classified according to their spectral resolution or their spatial resolution. Narrowband hyper spectral systems are usually based on point spectrometers or linear spectrometers. These systems can measure many precise narrow spectral bands of a point light source or a line source, in the VIS and NIR ranges and beyond. O ....etc

[:=Read Full Message Here=:]

The topic is related to improving end-user experience for web browsing services in the HSDPA scheduler.

I wanted to ask some questions related to it.

The basic idea is to identify web browsing applications in the WRAN from their traffic characteristics, define the user requirements for them and then basically optimizing the application in order to improve the scheduling algorithm in hsdpa.
For the web browsing services, the characteristics I have taken into account are, i.e. with these characteristics we would be able to identify web ....etc

[:=Read Full Message Here=:]