i need this project description, working principle, circuit diagram and ppt ....etc

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The communication needs of Earth observation satellites is steadily increasing. Within a few
years, the data rate of such satellites will exceed 1 Gbps, the angular resolution of sensors will be
less than 1 μrad, and the memory size of onboard data recorders will be beyond 1 Tbytes.
Compared to radio frequency links, optical communications in space offer various advantages
such as smaller and lighter equipment, higher data rates, limited risk of interference with other
communications systems, and the effective use of freque ....etc

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Multi User Chatting System


Specifications of Multi User Chat System :

The aim of the Project Multi User Chat System is to develop a chatting system application such that it will work like a yahoo mess anger .

The following are the modules in Multi User Chat System :

Server Module.
Clients Module.
Public Chatting.
Private Chatting.

The following are the functions of Multi User Chat System :

Start the Server: First start the server, then only clients login to chat rooms.

Client Login: in this clients enter into chat ro ....etc

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CELLULAR AND MOBILE COMMUNICATIONS DS-CDMA
Presented By:
V.VIJAYA KUMAR, IV B.Tech E.C.E
SREE VIDYANIKETHAN ENGINEERING COLLEGE ,TIRUPATI


ABSTRACT

So far transmission errors have been described as evil entity in communication literature. Introducing error intentionally can save power and reduce interference. This has been proved by scientists Jik Dong Kim (South Korea), Sang Wu Kim (USA) and Young Gil Kim (South Korea). It is about combined power and error control in multicarrier DS-CDMA systems ....etc

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MULTI USER SECURITY FOR MULTICAST COMMUNICATION

INTRODUCTION

The simplest computer chatting is a method of sending, receiving, and storing typed messages with a network of users. This network could be WAN (Wide Area Network) or LAN(Local Area Network). Our chatting system will deal only with LAN’s (static IP address) and it is made up of two applications one runs on the server side (any computer on the network you choose it to be the server) while the other is delivered and executed on the client PC. Every time ....etc

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Abstract
Two major factors that limit the throughput inmulti-hop wireless networks are the unreliability of wirelesstransmissions and co-channel interference. One promising techniquethat combats lossy wireless transmissions is opportunisticrouting (OR). OR involves multiple forwarding candidates torelay packets by taking advantage of the broadcast nature andspacial diversity of the wireless medium. Furthermore, recentadvances in multi-radio multi-channel transmission technologyallows more concurrent transmissions in the network, and sh ....etc

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Presented By
Vinayaka S
Manjunath J
Raehan Ahmed
Mithun V


MULTI USER WHITE BOARD Interactive Lecture Archive SYSTEM
Abstract of the Project
 The primary motivation for the creation of the e-learning applications was the facilitation of collaboration of textual contents and images displayed to users from centralized database system. There was a need for a better way for of learning systems to rapidly exchange large amounts of information, ranging from experimental data and results of analyses to organi ....etc

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Multi-User FPGA-An Efficient Way of Managing Expensive FPGA Resources Using TCP/IP, Wi-Max/ Wi-Fi in a Secure Network Environment

In this article, the ways of sharing a single FPGA development board resource as a simulator in a multiuser environment is tried to improve for the purpose of improving the remote access using TCP/IP. There is a mutually exclusive hardware co-simulation strategy where multiple users can use the same FPGA prototyping board and the sharing is accomplished by the use of TDM and connecting Through Wi-Max/ Wi- ....etc

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i want some more details for multi user chat system using java as desktop application ....etc

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