ethio telecom 3g mobile internet hackabana  shbejsshidbbrknsjjdkmdmmdmenahhsnnsghdngshhhsbbbsh ....etc

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leach is not distributed seletion head cluster.Leach is absolete. ....etc

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Introduction

WIRELESS TECHNOLOGY BECOMING HOTTER
TRANSITION TOWARDS MOBILITY OVER PAST 20 YEARS
CISCO IOS HAS INTEGRATED NEW TECHNOLOGY ON MOBILE IP WHICH PROVIDES USERS THE FREEDOM TO ROAM
NETWORK MOBILITY IS PROVIDED BY MOBILE IP

MOBILE IP OVERVIEW

ROUTING BASED ON STATIONARY IP ADDRESS
IN IP NETWORKS
IT IS AN EXTENSION TO IP PROPOSED BY IETF
THAT ENABLE USERS TO KEEP SAME IP ADDRESS WHILE ROAMING
WITHOUT MOBILE IP
* NODE MUST CHANGE ITS IP ADDRESS WHIL ....etc

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Voice over Internet Protocol (VoIP), is a technology that allows you to make voice calls using a broadband Internet connection instead of a regular (or analog) phone line. Some VoIP services may only allow you to call other people using the same service, but others may allow you to call anyone who has a telephone number - including local, long distance, mobile, and international numbers. Also, while some VoIP services only work over your computer or a special VoIP phone, other services allow you to use a traditional phone connected to a VoIP ....etc

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VoIP, or Voice over Internet Protocol refers to sending voice and fax phone calls over data networks, particularly the Internet. This technology offers cost savings by making more efficient use of the existing network.
Traditionally, voice and data were carried over separate networks optimized to suit the differing characteristics of voice and data traffic. With advances in technology, it is now possible to carry voice and data over the same networks whilst still catering for the different characteristics required by voice and data.
Voice-ov ....etc

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[email protected]

I need the ppt & report of FPGA based track circuit for railways using
transmission encoding ....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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Definition
Using an ordinary phone for most people is a common daily occurrence as is listening to your favorite CD containing the digitally recorded music. It is only a small extension to these technologies in having your voice transmitted in data packets. The transmission of voice in the phone network was done originally using an analog signal but this has been replaced in much of the world by digital networks. Although many of our phones are still analog, the network that carries that voice has become digital.

In todays phone networks, t ....etc

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A Quick Introduction to Voice over Internet Protocol (VoIP)



Internet Basics

The basic building block of networks is the IP datagram.
Analogy to datagrams—a postcard with
Destination address
Return address
A small amount of text
A postcard might inform you of a friend’s holiday travels or remind you of a dentist’s appointment.
The postal service doesn’t care which application (friend or dentist) sent the postcard—it just carries processed wood pulp with black marks.

Voice—Another A ....etc

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Mobile communications Over Internet Protocol is designed to be totally mobile-centric, and is optimized specifically for mobile-handsets environment rather than the PC. MoIP unlike mobile VoIP, is not a VoIP program made accessible from mobile phones or a switchboard application using VoIP in the background buts it's a form of peer-to-peer communications found on users' handsets, used to conduct talk and chat over the Internet connection as its primary channel via standard mobile communications applications including 3G, GPRS and Wifi.

Most ....etc

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