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Second-generation telecommunication systems, such as the Global System for Mobile
Communications (GSM), enabled voice traffic to go wireless: the number of mobile phones
exceeds the number of landline phones and the mobile phone penetration is approaching
100% in several markets. The data-handling capabilities of second-generation systems are
limited, however, and Third-generation systems are needed to provide the high bit-rate
services that enable high-quality images and video to be transmitted and received, and to
provide access to the Web with higher data rates.
標簽：
Evolution
WCDMA
UMTS
HSPA
LTE
for
and
上傳時間：
2020-06-01
上傳用戶：shancjb
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During the past three decades, the world has seen signifi cant changes in the telecom-
munications industry. There has been rapid growth in wireless communications, as
seen by large expansion in mobile systems. Wireless communications have moved
from fi rst-generation (1G) systems primarily focused on voice communications to
Third-generation (3G) systems dealing with Internet connectivity and multi-media
applications. The fourth-generation (4G) systems will be designed to connect wire-
less personal area networks (WPANs), wireless local area networks (WLANs) and
wireless wide-area networks (WWANs).
標簽：
Communications
Networking
Wireless
上傳時間：
2020-06-01
上傳用戶：shancjb
-
Welcome to the Third volume of the book entitled Technologies for the Wireless Future, which
is produced by WWRF. The idea is to take the most important outputs from the working
groups and special-interest groups that compose the Forum and bring them together in a series
of one-volume surveys. The latest of these will give the reader a good overview of the WWRF
approach to analyzing the future of wireless and mobile communications, as well as an insight
into the trends themselves and the key technologies that will be deployed.
標簽：
Wireless
Research
Forum
World
上傳時間：
2020-06-01
上傳用戶：shancjb
-
This book paves the path toward fourth generation (4G) mobile communica-
tion by introducing mobility in heterogeneous IP networks with both Third
generation (3G) and wireless local area networks (WLANs), which is seen as
one of the central issues in the becoming 4G of telecommunications networks
and systems. This book presents a thorough overview of 3G networks and
standards and discusses interworking and handover mechanisms between
WLANs and the Universal Mobile Telecommunication System (UMTS).
標簽：
Wireless
towards
WLANs
WPANs
4G
上傳時間：
2020-06-01
上傳用戶：shancjb
-
HIS IS THE Third —and most likely the last—book
in the series on information technology for
energy managers and web based energy infor-
mation and control systems. This book concentrates on
web based enterprise energy and building automation
systems, and serves as a capstone volume in this series.
The thrust here is that the highest level functions of a
building and facility automation system are provided
by a web based EIS/ECS system that provides energy
management, maintenance management, overall facility
operational management, and ties in with the enterprise
resource management system for the entire facility or
the group of facilities being managed. If there were ever
to be a fourth volume in this series, it would follow
the logical progression of the first three volumes, and
would probably be titled Web Based Enterprise Resource
Management Systems.
標簽：
Enterprise
Energy
Based
Web
上傳時間：
2020-06-06
上傳用戶：shancjb
-
Multisim官方示例Multisim仿真例程基礎電路范例135例合集:Chapter 1 - RLC CircuitsChapter 2 - DiodesChapter 3 - TransistorsChapter 4 - AmplifiersChapter 5 - OpampsChapter 6 - FiltersChapter 7 - Miscellaneous CircuitsFundamental Circuits.pdf004 Parallel DC Circuits.ms10005 Series-Parrallel DC Circuit.ms10006 Current Analysis.ms10007 Millmans Theorem 1.ms10008 Millmans Theorem 2.ms10009 Kirchhoff's Current Law.ms10010 Thevenin's Theorem.ms10011 Superposition Principle.ms10012 Nortons Theorem and Source Conversion.ms10013 AC Voltage Measurement.ms10014 Frequency Response of the Series RL Network.ms10015 RL High and Low Pass Filter.ms10016 Frequency Response of the Series RC Network.ms10017 RC High and Low Pass Filter.ms10019 Center-Tapped Full-Wave Rectifier.ms10020 Bridge Rectifier.ms10021 Capacitor-Input Rectifier Filter.ms10022 Diode Clipper (Limiter).ms10023 Diode Clipper.ms10024 Diode Clamper (DC Restorer).ms10025 Diode Voltage Doubler.ms10026 Zener Diode and Voltage Regulation 1.ms10027 Zener Diode and Voltage Regulation 2.ms10028 Zener Diode and Voltage Regulation 3.ms10105 TTL Inverter.ms10107 TTL Gate.ms10109 OR Gate Circuit.ms10111 Over-Damp Circuit.ms10113 Critical-Damp Circuit.ms10115 Series RLC Circuit 1.ms10117 Clapp Oscillator.ms10119 Differential Amplifier 1.ms10121 Differential Amplifier in Common Mode.ms10123 LC Oscillator with Unity Gain Buffer.ms10125 Notch Filter.ms10127 PNP Differential Pair.ms10129 Crossover Network.ms10131 Second-Order High-Pass Chebyshev Filter.ms10133 Third-Order High-Pass Chebyshev Filter.ms10135 Fifth-Order High-Pass Filter.ms10
標簽：
multisim
上傳時間：
2021-10-27
上傳用戶：trh505
-
這是一本英文版的MPC的MATLAB教程，講這一塊的資料太少了，故上傳一本。MPC is one of the few areas that has received on-going interest from researchers in both the industrial and cademic communities.Four major aspects of model predictive control make the design methodology attractive to both practitioners and academics.This is particularly attractive to industry where tight profit margins and limits on the process operation are inevitably present. The Third aspect is the ability to perform on-line process optimization. The fourth aspect is the simplicity of the design framework in handling all these complex issues.
標簽：
模型預測控制
上傳時間：
2022-05-05
上傳用戶：zhanglei193
-
The information disclosed to you hereunder (the Materials ) is provided solely for the selection and use of Xilinx products. To the maximum extent permitted by applicable law: (1) Materials are made available"AS IS"and with all faults, Xilinx hereby DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED, OR ST ATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and (2) Xilinx shall not be liable (whether in contract or tort. includina nealigence. or under anv other theorv of liabilitv) for any loss or damage of any kind or nature related to, arising under, or in connection with, the Materials (including vour use of the Materials), including for any direct, indirect, special, incidental, or consequential loss or damage (including loss of data, profits, qoodwill, or any type of loss or damage suffered as a result of anv action brought by a Third party)
標簽：
xinlinx
spartan-6
上傳時間：
2022-06-18
上傳用戶：
-
PrefaceDuring the past years, there has been a quickly rising interest in radio access technologies for providingmobile as well as nomadic and fixed services for voice, video, and data. The difference indesign, implementation, and use between telecom and datacom technologies is also becoming moreblurred. One example is cellular technologies from the telecom world being used for broadband dataand wireless LAN from the datacom world being used for voice-over IP.Today, the most widespread radio access technology for mobile communication is digital cellular,with the number of users passing 5 billion by 2010, which is more than half of the world’s population.It has emerged from early deployments of an expensive voice service for a few car-borne users,to today’s widespread use of mobile-communication devices that provide a range of mobile servicesand often include camera, MP3 player, and PDA functions. With this widespread use and increasinginterest in mobile communication, a continuing evolution ahead is foreseen.This book describes LTE, developed in 3GPP (Third Generation Partnership Project) and providingtrue 4G broadband mobile access, starting from the first version in release 8 and through the continuingevolution to release 10, the latest version of LTE. Release 10, also known as LTE-Advanced,is of particular interest as it is the major technology approved by the ITU as fulfilling the IMTAdvancedrequirements. The description in this book is based on LTE release 10 and thus provides acomplete description of the LTE-Advanced radio access from the bottom up.Chapter 1 gives the background to LTE and its evolution, looking also at the different standardsbodies and organizations involved in the process of defining 4G. It also gives a discussion of the reasonsand driving forces behind the evolution.Chapters 2–6 provide a deeper insight into some of the technologies that are part of LTE and itsevolution. Because of its generic nature, these chapters can be used as a background not only for LTEas described in this book, but also for readers who want to understand the technology behind othersystems, such as WCDMA/HSPA, WiMAX, and CDMA2000.Chapters 7–17 constitute the main part of the book. As a start, an introductory technical overviewof LTE is given, where the most important technology components are introduced based onthe generic technologies described in previous chapters. The following chapters provide a detaileddescription of the protocol structure, the downlink and uplink transmission schemes, and the associatedmechanisms for scheduling, retransmission and interference handling. Broadcast operation andrelaying are also described. This is followed by a discussion of the spectrum flexibility and the associated
標簽：
4g
移動通信
上傳時間：
2022-07-08
上傳用戶：
-
半導體器件物理考試考試范圍
現更改為Physics of Semiconductor Devices/Third Edition，S. M. Sze， KWOK K.NG， John Wiley & Sons，2006 半導體器件物理，施 敏，伍國玨，西安交通大學出版社，2010。
標簽：
半導體器件
上傳時間：
2022-07-23
上傳用戶：qdxqdxqdxqdx
