Introduction to Smart Antennas - Chapter 8 potx
Introduction to Smart Antennas - Chapter 8 potx
... station)
space-time
processing
smart antennas
MISO/SIMO
MIMO
FIGURE 8. 3: Space–time processing; applications and benefits [25].
132 INTRODUCTION TO SMART ANTENNAS
is considered to be frequency-flat, the ... the BS is able to adapt its antenna pattern
146 INTRODUCTION TO SMART ANTENNAS
−20 0 20 40 60 80 100
0
10
20
30
40
50
60
70
80
90
100
Signal -to- Noise Ratio (dB...
Introduction to Smart Antennas - Chapter 1 ppsx
... series
SYNTHESIS LECTURES ON ANTENNAS #5
Lecture #5
Series Editor: Constantine A. Balanis, Arizona State University
First Edition
10 9 8 7 6 5 4 3 2 1
vi INTRODUCTION TO SMART ANTENNAS
4.4 Smart Antenna Configurations ... reliable and robust high-speed high-data-rate transmission. The
purpose of this book is to provide the reader a broad view of the system aspects of smart a...
Introduction to Smart Antennas - Chapter 2 pps
... Bandwidth
. (2.1)
20 INTRODUCTION TO SMART ANTENNAS
-8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8
Normalized Frequency (f T)
-0 .4
-0 .2
0.0
0.2
0.4
0.6
0 .8
1.0
Normalized Amplitude
FIGURE 2.11: OFDM ... instead
FIGURE2 .8: Sectorized cellular network employing three sectors, each one covering 120
◦
field of view.
8 INTRODUCTION TO SMART ANTENNAS...
Introduction to Smart Antennas - Chapter 3 docx
... fixed to the optimum direction (toward which the signal -to- noise
ratio is maximized). In this direction the maximum of the pattern is ideally toward the desired
signal.
30 INTRODUCTION TO SMART ANTENNAS
0 ... 26 INTRODUCTION TO SMART ANTENNAS
Adaptive arrays based on DSP algorithms can, in principle, receive desired signals
from any angle of arrival. However, the output sig...
Introduction to Smart Antennas - Chapter 4 docx
... unit
Radio unit
FIGURE 4. 18: Reception part of a smart antenna [20].
60 INTRODUCTION TO SMART ANTENNAS
-1 80 -1 50 -1 20 -9 0 -6 0 -3 0 0 30 60 90 120 150 180
(degrees)
-8 0
-6 0
-4 0
-2 0
0
Gain (dB)
FIGURE ... diagram [94, 95].
SMART ANTENNAS 63
-1 80 -1 50 -1 20 -9 0 -6 0 -3 0 0 30 60 90 120 150 180
(degrees)
-8 0
-6...
Introduction to Smart Antennas - Chapter 5 ppsx
... since the observations
become “full-rank”. The approach of MUSIC, and other subspace-based methods, is to first
82 INTRODUCTION TO SMART ANTENNAS
-9 0 -7 5 -6 0 -4 5 -3 0 -1 5 0 15 30 45 60 75 90
(degrees)
0
5
10
15
20
25
30
35
MUSIC ... vector wavenumber of the incident plane from the ith narrowband source and
D is the vector displacement between the two subarrays...
Introduction to Smart Antennas - Chapter 6 docx
... stochastic gradient algorithms since the
instantaneous estimate of the gradient vector is a random vector that depends on the input data
90 INTRODUCTION TO SMART ANTENNAS
-9 0 -7 5 -6 0 -4 5 -3 0 -1 5 ... signal pattern shaping is to simultaneously place a beam
maximum toward the signal-of-interest (SOI) and ideally nulls toward directions of interfering
signals or...
Introduction to Smart Antennas - Chapter 7 ppsx
... beamwidths and lower sidelobes lead to lower cochannel
interference.
110 INTRODUCTION TO SMART ANTENNAS
-3 0-3 0 -2 0-2 0 -1 0-1 0 00
90
60
30
0
30
60
90
dB
E-plane
H-plane
FIGURE 7.3: Single element ... 20 20.5 21
-2 5
-2 0
-1 5
-1 0
-5
0
Frequency (GHz)
|S
11
| (dB)
-1 0 dB BW
0.25 GHz
-3 dB BW
0.74 GHz
FIGURE 7.2: Return loss (S
11
) of micros...
Introduction to Smart Antennas - Chapter 9 pdf
... adaptive beam-forming. Fig. 9.2 illustrates the functional diagram of Spotlight
.
Another product by the same company is the SmartCell
. It is a targeted, sector-by-
sector smart antenna ... to continual advances in the
field, it is expected that the usage of smart antennas will continue to grow.
COMMERCIAL AVAILABILITY OF SMART ANTENNAS 153
FIGURE 9.3: The use of standard or...
Introduction to Smart Antennas - Chapter 10 pdf
... semicircular ar-
ray antennas for low-cost wireless LAN data communication systems,” IEEE
Proc. Microw. Antennas Propagat., vol. 145, no. 2, pp. 153–1 58, Apr. 19 98.
doi:10.1049/ip-map:19 981 6 58
[3] J ... spectra,”
Nature, vol. 161, pp. 686 – 687 , 19 48.
[132] P. Stoica and R. Moses, Introduction to Spectral Analysis. UpperSaddleRiver,NJ:
Prentice-Hall, 1997.
REFERENCES 163
[61...
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