customers. The company is dedicated to providing innovative and customized equipment‚ services and solutions to meet the different needs and requirements of customers worldwide. Huawei’s product portfolio comprises wireless products (e.g. UMTS‚ CDMA2000‚ GSM/ GPRS/ EDGE and Wi-MAX); network products (e.g. NGN‚ xDSL‚ and optical network and data communications products); value-added services (e.g. intelligent network‚ CDN/ SAN and wireless data) as well as mobile and fixed terminals. Huawei becomes
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Case Study of Samsung’s Mobile Phone Business Boon-Young Lee∗ aliceboon@kdischool.ac.kr and Seung-Joo Lee∗∗ sjl@kdischool.ac.kr Abstract: This paper examines Samsung Electronics successful growth strategy in the mobile phone business. It examines its early efforts at developing a competitive product in the domestic market‚ its globalization strategies‚ and some of the key challenges it faces today. The paper provide insights into how a late-comer to an industry can overcome certain
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[prev] [prev-tail] [tail] [up] Chapter 4 Fading and Shadowing Fading is a significant part of any wireless communication design; it is important to predict what type of fading may occur‚ and if possible use a wireless standard capable of providing remedies for the fades. When no remedies are possible‚ it may be important to predict the likelihood of outage. We will review here several types of fading and provide models to predict their impact. 4.1 Large-Scale Shadowing We start with
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History of Cell Phones The history of mobile phones records the development of interconnection between the public switched telephone systems to radio transceivers. From the earliest days of transmitting speech by radio‚ connection of the radio system to the telephone network had obvious benefits of eliminating the wires. Early systems used bulky‚ high power consuming equipment and supported only a few conversations at a time‚ with required manual set-up of the interconnection. Today cellular technology
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March 2000 Third Generation (3G) Wireless White Paper Trillium Digital Systems‚ Inc. March 2000 Trillium Digital Systems‚ Inc. 12100 Wilshire Blvd.‚ Suite 1800 Los Angeles‚ CA 90025-7118 Phone: +1 (310) 442-9222 Fax: +1 (310) 442-1162 Web: http://www.trillium.com (c) 1989 - 2000. Trillium Digital Systems‚ Inc. All rights reserved. Trillium and Trillium Digital Systems are registered trademarks of Trillium Digital Systems‚ Inc. Other referenced trademarks are trademarks (registered or otherwise)
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What’s Wi-Max? Wi-Max is an IP based‚ wireless broadband access technology that provides performance similar to 802.11/Wi-Fi networks with the coverage and QOS (quality of service) of cellular networks. Wi-Max stands from "Worldwide Interoperability for Microwave Access. Wi-Max is a wireless digital communications system‚ also known as IEEE 802.16 that is intended for wireless "metropolitan area networks". Wi-Max can provide broadband wireless access (BWA) up to 30 miles (50 km) for fixed stations
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achieved without undue interference between theusers CDMA employs spread- spectrum technology and a special coding scheme (where each transmitter is assigned a code). CDMA is used as the access method in many mobile phone standards such as cdmaOne‚ CDMA2000 (the 3G evolution of cdmaOne)‚ and WCDMA (the 3G standard used by GSM carriers)‚ which are often referred to as simply CDMA.It is a spread spectrum multiple access technique.a spread spectrum technique spreads the bandwidth of the data uniformly
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Contents 1. Overview 2. Predecessors of 4G 3.1 LTE 3.2 WiMAX 3.3 UMB (formerly EV-DO Rev. C) 3.4 Flash-OFDM 3. Objective and approach 4.5 Objectives 4.6 Approaches 4.7.1 Consideration points 4.7.2 Principal technologies 4. 4G features 5. Components 6.7 Access schemes 6.8 IPv6 support 6.9 Advanced Antenna Systems 6.10 Software-Defined Radio (SDR)
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MOBILE COMPUTING Chapter 1: Outline 1.1 Introduction to Mobile Computing 1.2 Radio Propagation 1.3 Antennas 1.4 Cellular Systems 1.5 Wireless Link Characteristics ERIC SAVIOUR ARYEE OKAI OCT‚2013 MOBILE COMPUTING 1.1 INTRODUCTION What is Mobile Computing? Mobile Computing is a technology that allows transmission of data‚ voice and video via a computer or any other wireless enabled device without having to be connected to a fixed physical link. ERIC SAVIOUR ARYEE OKAI OCT
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and user perceptions. 1. Compare and contrast 3G wireless networks to 4G networks A. Compare and contrast 3G wireless networks to 4G networks in terms of services and applications” Some examples of services offered by 3G wireless networks are CDMA2000‚ UMTS‚ and EDGE along with a list of others while 4G networks offer Wimax2 and LTE-Advance. Applications are the primary reason consumers use smart-phones today. They get
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