MOBILE COMMUNICATIONS
ULTRA WIDE BAND TECHNOLOGY


Presented By
G.Sankar Reddy
And
T.kamal Tej
From
VIGNAN„¢S ENGINEERING COLLEGE,Vadlamudi

ABSTRACT

Mankind has come across many stages right from ancient Stone Age to the modern wireless age. In every stage it developed its own unique method of communication to suit its requirements. These methods range from Graham Bellâ„¢s cabled telephones to todayâ„¢s wireless mobile handsets. But if there could be a technology such that ....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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Open Wireless Architecture - The Core to 4G Mobile
Communications


Abstract


Mobile communication is continuously one of the
hottest areas that are developing at a booming speed,
with advanced techniques emerging in all the fields of
mobile and wireless communications. Current times
are just the beginning for deploying 3G mobile
communication systems, while research on the next
generation of mobile communications, 4G wireless and
mobile networks begin to pave the way for the future.
This article studies the visions of 4G from ....etc

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GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS
&
SECURITY

SUBMITTEDBY :
SARATH CHOWDARY P.
SURYA TEJA P.
THIRDYEAR,
ELECTRONICS & COMMUNICATION
ENGINEERING ,
SIRC.R.REDDYCOLLEGEOFENGINEERING,
ELURU, ANDHRA PRADESH.


Abstract
In the past decade mobile communications has become one of the driving forces of the digital revolution. Everyday, millions of people are making phone calls by pressing a few buttons. Little is known about how one personâ„¢s voice r ....etc

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excuse me , i need to know more information about 4G MOBILE COMMUNICATIONS , so can u plz provide the total information related to that topic....thank u. ....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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Abstract:::
The demand for wireless mobile communications services is growing at an explosive rate, with the anticipation that communication to a mobile device anywhere on the globe at all times will be available in the near future.
An array of antennas mounted on vehicles, ships, aircraft, satellites, and base stations is expected to play an important role in fulfilling the increased demand of channel requirement for these services, as well as for the realization of the dream that a portable ....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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Submitted by:
PRADEEP KUMAR


Future of Mobile Communications
What is Mobile Communication
The world of mobile communications
2G Mobile Systems
• GSM and CDMA one carry speech and low bit rate data.
2G service had the same switched TDM backbone, but
added a true Data Bearer and a digital voice bearer.
Data rates were still limited to the max 64kbps of a single time slot.
2.5G added a packet bearer to the mix , still limited to 64kbps slots.
4G Mobile Systems
• Access, handoff
• ....etc

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i need the mobile communication using zigbee technology ....etc

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