multiple access techniques for wireless communication
Multiple Access Protocols for Mobile Communications - GPRS, UMTS and Beyond
Ngày tải lên :
02/03/2013, 16:59
... 44
2.5.3 Wireless Local Area Network (WLAN) Standards 46
2.6 Summary 48
3 Multiple Access in Cellular Communication Systems 49
3.1 Multiple Access and the OSI Layers 49
3.2 Basic Multiple Access ... Protocol for Hybrid CDMA/TDMA 12
1.4.1 Why Combine CDMA and PRMA? 12
1.4.2 Hybrid CDMA/TDMA Multiple Access Schemes 14
1.4.3 Literature on Multiple Access Protocols for Packet CDMA 15
1.4.4 Access ... individual portions of
its resources to support multiple communications, basic multiple access techniques (such
as frequency-, time-, or code-division multiple access, with FDMA, TDMA, and CDMA
as their...
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Theory of stochastic local area channel modeling for wireless communications
Ngày tải lên :
20/11/2012, 11:36
... capacity for data transmission of current wireless systems is still tiny when compared to
wired forms of communications. But wireless data rates continue to increase. To understand
the push for higher ... interesting trends in wireless communications is the proposed
use of multiple- input, multiple- output (MIMO) systems. A MIMO system uses multiple
transmitter antennas and multiple receiver antennas ... works for wireless systems that have been
deployed to date. Do not expect this statement to hold much longer. There are 6 current
trends in wireless communications which emphasize the need for...
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Multi-Carrier Technologies for Wireless Communication
Ngày tải lên :
02/03/2013, 16:59
... interests
include multiple access techniques, estimation theory, multi-user detection
and channel modeling.
“I am extremely grateful to my parents for the sacrifices they have made and
for imparting ... of wireless telecommunications, a
number of trends are gaining widespread popularity. Among these is the
explosion of interest in multi-carrier communications, and its application to
wireless multiple- access. ... mobiles
from TDMA (time division multiple access) to DS-CDMA (direct sequence
code division multiple access) to MC-CDMA to OFDM, while maintaining a
common hardware platform.
In this chapter, we demonstrate...
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Tài liệu Rf Mems Circuit Design For Wireless Communications pptx
Ngày tải lên :
19/01/2014, 20:20
... ground
fixed/mobile platform, and (3) the space platform.
4 RF MEMS Circuit Design for Wireless Communications
Information
Voice
Broadband data
Messaging
Navigation
DBS
Internet
Video
Wireless ... 4
1
3
3
p
(2.29)
28 RF MEMS Circuit Design for Wireless Communications
2
Elements of RF Circuit Design
2.1 Introduction
The design of RF MEMS circuits for wireless applications is predicated upon
the ... Design for Wireless Communications
86%
11%
3%
2000
81%
15%
4%
2001
75%
20%
5%
2002
70%
25%
5%
2003
Phone line Power line Wireless
Figure 1.4 Distribution of interconnection media usage for home...
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Channel Equalization for Wireless Communications: From Concepts to Detailed Mathematics doc
Ngày tải lên :
16/03/2014, 22:20
... desirable. In the literature, channel modeling
information can be found for
• wireless (radio) communications [Tur72, Suz77],
• wireline communications (twisted pair) [Fis95],
4 INTRODUCTION ... the book will be wireless communications exam-
ples,
specifically radio communications such as cellular communications. In such
systems, there are several standard models used for the medium ... antenna.
For the dispersive static channel, we will specify fixed values for the medium
coefficients. For the dispersive fading channel, we will specify relative average
powers for the medium...
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MEMS-based Circuits and Systems for Wireless Communication docx
Ngày tải lên :
30/03/2014, 07:20
... circuits. Fundamentals of microfabrication techniques
employed for making AlN CMR are briefly introduced. Different methods for
arraying these devices and form either electrically or mechanically ... increasing
recent interest in wireless applications [41–43] has generated new efforts to
miniaturize and integrate the off-chip passives needed for filtering and frequency
generation in communication circuits. ... therefore
enabling multiple frequencies of vibration on the same silicon chip and greatly
reducing manufacturing tolerances to film thicknesses.
In general, the equivalent circuit representation for...
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Tdd - cdma for wireless communications
Ngày tải lên :
27/05/2014, 04:01
... aspects
of wireless communications performance. Chapters 7 and 8 discuss the basis
of two public mobile communication standards, and several private wireless
8 TDD-CDMA for Wireless Communications
C
B
S
N
w
=+
144 ... observed in the utilized multiple- access schemes:
from frequency-division multiple access (FDMA) to time-division multiple
access (TDMA) and code-division multiple access (CDMA). TDMA and
CDMA developments ... channels.
TDD-CDMA for Wireless Communications
Riaz Esmailzadeh
Masao Nakagawa
Artech House
Boston • London
www.artechhouse.com
1.1 Mobile Communications
The mobile communications revolution took place for...
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Báo cáo hóa học: "Editorial Space-Time Channel Modeling for Wireless Communications" pptx
Ngày tải lên :
21/06/2014, 22:20
... centered around
multiple- input multiple- output (MIMO) techniques for
wireless communications is based on capacity gains obtained
by more fully exploiting the spatial and temporal aspects
of wireless ... Corporation
EURASIP Journal on Wireless Communications and Networking
Volume 2007, Article ID 24595, 2 pages
doi:10.1155/2007/24595
Editorial
Space-Time Channel Modeling for
Wireless Communications
Thushara ... channels. The early indications moving to the
use of multiple transmitters and multiple receiver elements
could lead to quite significant performance improvements
that were based on theoretical...
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Báo cáo hóa học: " Research Article Novel Techniques of Single-Carrier Frequency-Domain Equalization for Optical Wireless Communications" doc
Ngày tải lên :
21/06/2014, 08:20
... growing interest for use in
indoor wireless data transmission [1, 2]. Diffuse optical
wireless (DOW) communications offer a viable alternative
to radio frequency (RF) communication for indoor use ... 0.01 W, the performances of all SCFDE schemes are
almost the same due to their lower PAPR. For an input
signal power of 1 W for QPSK and 0.1 W for 16 QAM and
64 QAM, DQO-SCFDE performs better than ... 2008.
[4] J. B. Carruthers and J. M. Kahn, Multiple- subcarrier modula-
tion for nondirected wireless infrared communication, ” IEEE
Journal on Selected Areas in Communications,vol.14,no.3,pp.
538–546,...
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báo cáo hóa học:" Multiple access communications in future-generation wireless networks" potx
Ngày tải lên :
21/06/2014, 17:20
... acceptance. Fully formatted
PDF and full text (HTML) versions will be made available soon.
Multiple access communications in future-generation wireless networks
EURASIP Journal on Wireless Communications ... in Multiple Access Communications such as new
cooperative MAC protocols; spectrum sharing, and channel assignment
techniques for cognitive radio networks; new results on PHY layer multiple
access ... nonasymptotic method for
implementation of proportional differentiated admission control.
The article “Polarization Division Multiple Access With Polarization
Modulation for LOS Wireless Communications”...
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