Presented by:
Jean-Paul M.G. Linnartz

Introduction

OFDM: a form of MultiCarrier Modulation.
Different symbols are transmitted over different subcarriers
Spectra overlap, but signals are orthogonal.
Example: Rectangular waveform -> Sinc spectrum

For more details , please visit
http://wireless.per.nl/reference/ppt/eesi/dsp.ppt ....etc

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sir please provide ppts on radio over fiber &projrct report ....etc

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Generation of linearized optical single sideband signal for broadband radio over fiber systems
Radio over fiber (RoF) technique shows advantages in- cluding low loss, high bandwidth, and immunity against gelectromagnetic interference. In most RoF systems, in- put radio frequency (RF) signals are carried on optical carriers via intensity modulation (IM) and recovered after transmission using direct detection (DD) by photodetec- tors (PDs). Generally, LiNbO3 Mach-Zehnder modula- tors (MZMs) are utilized for IM/DD links. However, harmo ....etc

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BROADBAND ACCESS USING WIRELESS OVER MULTIMODE FIBRE SYSTEMS


i need the full report and powerpoint presentation as soon as possible..

send it to my mail [email protected] ....etc

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Abstract
We investigate the problem of streaming multiplevideos over multi-hop cognitive radio (CR) networks.Fine-Granularity-Scalability (FGS) and Medium-Grain-Scalable(MGS) videos are adopted to accommodate the heterogeneityamong channel availabilities and dynamic network conditions.We obtain a mixed integer nonlinear programming (MINLP)problem formulation, with objectives to maximize the overallreceived video quality and to achieve fairness among the videosessions, while bounding the collision rate with primary usersunder the presen ....etc

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I have apresentation on hybrid access networks where i need explanation on Rof ....etc

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Presented by:
Bart Lannoo, Didier Colle, Mario Pickavet, Piet Demeester

Abstract

Broadband access in a train environment is a topic which requires still a lot of research. It is especially the combination of fast moving users and high data rates which is still difficult to realize. In our proposed network architecture, we will make use of a reconfigurable Radio-over-Fiber network, which implements a moveable cell concept. By means of a case study, we will evaluate the total concept.

Introduction[/b ....etc

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presented by:
K.Raghava Vamsi
L.Naga prasad


ROF net-Transmission of RF Signals over Optical Fibers Using Radio Over Fiber Technology
Abstract- Radio over fiber technology is a combination of wireless and fiber optic networks, is an essential and emerging technology in the field of wireless communications, which can be used in a range of applications including the extension of existing radio coverage and capacity. Obviously, we ....etc

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Wireless communication has experienced tremendous growth in the last decade. High data rate wireless communication is becoming increasingly important to mobile users in corporate and public networks in the indoor environment. Although voice and low data rate services were the first applications of cellular networks, the focus in recent years has shifted to very high-bandwidth delivery, which is a key driver for system and network design. While wireless local area (WLAN) access is important for data applications, mobile users still expect reliab ....etc

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1.1 Wireless Communication Systems
Wireless communication has experienced tremendous growth in the last decade. In
1991 less than 1% of the world’s population had access to a mobile phone. By the
end of 2001, an estimated one in every six people had a mobile phone . During the
same period the number of countries worldwide having a mobile network increased
from just three to over 90%. In fact the number of mobile subscribers overtook the
number of fixed-line subscribers in 2002, as shown in Figure 1.1. It is predicted that
th ....etc

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