We present a new model for multiple input multiple-output (MIMO) out door wireless fading channels which is more general and realistic than the usual i.i.d. model. We investigate the channel capacity as a function of parameters such as the local scattering radius at the transmitter and the receiver, the distance between the transmit (TX) and receive (RX) arrays, and the antenna beamwidth sand spacing. We point out the existence of pinhole channels which exhibit low fading correlation between antennas but still have poor rank properties and hen ....etc

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A Paper Presentation on BLUETOOTH TECHNOLOGY IN WIRELESS COMMUNICATIONS
at
TECHFEST 2005
(A NATIONAL LEVEL TECHNICAL STUDENT PAPER PRESENTATION CONTEST)
Presented By
ARIF M. JEELANI P. SIVA NAGENDRA RAO
02481A0411 02481A0453
III / IV E.C.E
Gudlavalleru Engineering College,
Gudlavalleru.
Krishna district,
AP “ 521 356

Abstract:
Imagine the world with out wires and cables. Is this possible Yes this can be possible with the implementation of a new technology in wireless ....etc

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4G Wireless Systems

Abstract :

The ever-increasing growth of user demand, the limitations of the third generation of wireless mobile communication systems and the emergence of new mobile broadband technologies on the market have brought researchers and industries to a thorough reflection on the fourth generation. Many prophetic visions have appeared in the literature presenting 4G as the ultimate boundary of wireless mobile communication without any limit to its potential, but in practical terms not giving any design rules and thus any ....etc

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Blue Gene Technology

Abstract :

Blue Gene is a massively parallel computer being developed at the IBM Thomas J. Watson Research Center. Blue Gene represents a hundred-fold improvement on performance compared with the fastest supercomputers of today. It will achieve 1 PetaFLOP/sec through unprecedented levels of parallelism in excess of 4,0000,000 threads of execution. The Blue Gene project has two important goals, in which understanding of biologically import processes will be advanced, as well as advancement of knowledge of cellular ar ....etc

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The Ping of Death uses a ping system utility to create an IP packet that exceeds the maximum 65,536 bytes of data allowed by the IP specification. The oversize packet is then sent to an unsuspecting system. Systems may crash, hang, or reboot when they receive such a maliciously crafted packet. This attack is not new, and all OS vendors have fixes in place to handle the oversize packets.

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Introduction
iDEN is a mobile telecommunications technology, developed by Motorola, which provides its users the benefits of a trunked radio and a cellular telephone. iDEN places more users in a given spectral space, compared to analog cellular and two-way radio systems, by using speech compression and time division multiple access TDMA. Notably, iDEN is designed, and licensed, to operate on individual frequencies that may not be contiguous. iDEN operates on 25kHz channels, but only occupies 20 kHz in order to provide ....etc

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The convergence of three technology paradigms, viz. light-weight portable computers, the spread of wireless networks and services, and the ubiquitous Internet, aimed at allowing users the freedom to connect to the Internet at any time and in any place, to read email, query databases, retrieve information from the web or to entertain themselves, makes mobile computing a very promising prospect as well as a very formidable challenge. This paper details the mechanism of operation of Mobile IP network protocol, designed and developed to enable eff ....etc

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hi i am ram more studying third year of engineering in computer science at moze college.
I want a full seminar report on the topic idma the future of wireless technology in pdf format. ....etc

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Introduction

Pick up any newspaper today and it is a safe bet that you will find an article somewhere relating to mobile communications. If it is not in the technology section it will almost certainly be in the business section and relate to the increasing share prices of operators or equipment manufacturers, or acquisitions and take-overs thereof. Such is the pervasiveness of mobile communications that it is affecting virtually everyoneâ„¢s life and has become a major political topic and a significant contributor t ....etc

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Every new invention in the past ha to contend with various cynics who content that the existing technology is better than the new one or do you recall anyone saying That wonâ„¢t work man itâ„¢s too Hi-Fi, Well Blue tooth is also passing through the same phase.

For every new technology to get integrated into the society we have to pass certain phases that are predefined.

1. Scientific discussion: This is the place where the new technology is introduced and born out. Here the papers are presented at scientific seminars. Various pr ....etc

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