linear block codes examples ppt
Báo cáo hóa học: " Research Article A Simple Differential Modulation Scheme for Quasi-Orthogonal Space-Time Block Codes with Partial Transmit Diversity" ppt
Ngày tải lên :
22/06/2014, 19:20
... these codes can provide very useful re-
sults at low SNR. At high SNR, they perform worse than O-
STBC due to the reduced diversity. Recently, improved quasi-
orthogonal space-time block codes ... on
quasi-orthogonal codes, ” IEEE Transactions on Wireless Com-
munications, vol. 4, no. 6, pp. 3018–3030, 2005.
[13] L Y. Song and A. G. Burr, “Differential quasi-orthogonal
space-time block codes, ” IEEE ... constellation expansion; in addition it has a linear signal detector with very low complexity. Simulation results
show that these partial-diversity codes can provide very useful results at low...
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Engineering rock mechanics: part 2 II lustrative worked examples ppt
Ngày tải lên :
05/03/2014, 16:20
...
been severely damaged by the sliding of a large
block
of
rock on which the road had been built (to the right of the upper
picture). The rock block was able to slide because there was a large-scale ... have formed a rock
block which has slid downwards. The traces
of
dust in Fig. 2.4a and the
clouds of dust in Fig. 2.4b were not caused by blasting: the unstable rock
block slid down under ... are highlighted by the photograph in Fig. 1.2.
CHILE
-
Continuous, Homogeneous, Isotropic and Linearly Elastic;
DIANE
-
Discontinuous, Inhomogeneous, Anisotropic and Not-Elastic.
These refer...
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Engineering rock mechanics: part 2IIlustrative worked examples ppt
Ngày tải lên :
14/03/2014, 14:20
... engineering rock mechanics course at Imperial College, Uni-
versity of London, plus many extra examples to ensure that the book is
comprehensive and
is
suitable for all reader purposes and ...
referred
to
throughout as
“ERM
1”.
Engineering
rock
mechanics: part
2
Illustrative worked examples
John
R
Harrison
Senior Lecturer in Engineering Rock Mechanics
Imperial College
of ...
(lbf/in2) with equal facility:
1
MPa
*
145
psi.
Part
A:
I
I
I
ust
ra
t
ive
worked
examples
-
Questions
and
Answers
xvi
Units
and
symbols
Symbol Quantity Name of
SI
unit...
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Báo cáo khoa học: "Dynamic Programming for Linear-Time Incremental Parsing" pptx
Ngày tải lên :
17/03/2014, 00:20
... our knowledge, our work is the
first linear- time incremental parser that performs
dynamic programming. The parser of Roark and
Hollingshead (2009) is also almost linear time, but
they achieved this ... ∼8 times faster with the simplified edge-factored model in plot (c). Plot (d)
shows the (roughly linear) correlation between parsing accuracy and search quality (avg. model score).
10
0
10
2
10
4
10
6
10
8
10
10
10
12
... Sweden, 11-16 July 2010.
c
2010 Association for Computational Linguistics
Dynamic Programming for Linear- Time Incremental Parsing
Liang Huang
USC Information Sciences Institute
4676 Admiralty Way,...
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Tự vẽ nail color block chơi Noel pptx
Ngày tải lên :
22/03/2014, 13:20
... kiểu nail color block này, bạn có thể chọn son
đỏ hoặc hồng cùng tông màu trên móng, hay kết hợp với trang phục
cùng tông màu, nhưng nhớ đừng quá đà nhé.
Tự vẽ nail color block chơi Noel ... khả năng của bạn. Xu hướng vẽ
móng color block được giới chơi nail mê mẩn. Bạn có thể tự vẽ tại nhà
mà chẳng cần đến những hiệu nail đắt đỏ.
Color block là xu hướng thịnh hành từ thời trang ... lượt từng móng theo hình minh họa.
Đã hoàn thành bộ nail color block sành điệu.
Bạn có thể thực hiện nhiều kiểu nail color block với những gam
màu khác nhau, hãy tham khảo 2 mẫu nail dưới...
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Báo cáo khoa học: "Recognizing Authority in Dialogue with an Integer Linear Programming Constrained Model" pptx
Ngày tải lên :
23/03/2014, 16:20
... formalize
these constraints using Integer Linear Programming.
4.1 Challenging cases
We want to distinguish between phenomena such as
in the following two examples.
f K2 so I’m like on the bank on ... current and previous contribution.
4.3 Constraints using Integer Linear
Programming
We formulate our constraints using Integer Linear
Programming (ILP). This formulation has an ad-
vantage over ... developed a coding manual which
describes, in a reproducible way, how to apply the
codes listed above. The six codes we use, along with
their frequency in our corpus, are given in Table 1.
In the...
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Báo cáo hóa học: " On a boundary value problem of a class of generalized linear discrete-time systems" ppt
Ngày tải lên :
20/06/2014, 22:20
... J
p
:= sI
p
1
− J
p
1
(a
1
) ⊕···⊕sI
p
ν
− J
p
ν
(a
ν
).
(7)
and also the q blocks of the second uniquely defined block sH
q
- I
q
correspond to the
i.e.d.
s
q
1
, ,
s
q
σ
,
σ
j=1
q
j
= ... November 2011
References
1. Kalogeropoulos, G: Matrix Pencils and Linear System Theory. City University Press, London (1985)
2. Rough, WJ: Linear System Theory. Prentice Hall, Upper Saddle River, New ... Chelsea (1959)
6. Datta, BN: Numerical Linear Algebra and Applications. Cole Publishing Company (1995)
7. Dassios, IK: Solutions of higher-order homogeneous linear matrix differential equations...
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Báo cáo hóa học: " Memory effects in annealed hybrid gold nanoparticles/block copolymer bilayers" ppt
Ngày tải lên :
21/06/2014, 05:20
... isotherm originates
from chains reorientations of two blocks. Such reorien-
tations are the result of the balance between block- block
and block interface interactions.
In particular, the appearance ... the
protruding hydrophilic spots, consisting indeed of PAA
blocks, and the flat hydrophobic regions, due to th e
assembly of PnBuA blocks.
Figure 2b shows the effect of the Au sputtering
deposition. ... distribution onto the block copoly-
mer domains, studied by AFM, seems strongly affected
by the bilayer annealing, showing an apparent return of
the initial dephasing of the HP-LB block copolymer
film....
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Báo cáo hóa học: " Research Article Combined Distributed Turbo Coding and Space Frequency Block Coding Techniques" pptx
Ngày tải lên :
21/06/2014, 11:20
... resulted coded blocks of
length N
i
+ N
c
= N
i
/R
c
are then sent by the source (UT or
BS) over the source-destination and source-RN links.
(ii) Relaying Phase. The RN decodes the received block,
using ... destination.
Denoting by PER
x
the block error probability at destina-
tion provided by the algorithm x, if the messages transmitted
by RNs are correct, and by PER
S−R1
and PER
S−R2
the block
error probabilities ... different
puncturing patterns for the two transmissions. Usually, Con-
volutional Turbo Codes (CTCs) or Low Density Parity Check
(LDPC) codes are employed to implement the distributed
FEC.
4.2.1. Distributed...
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Báo cáo hóa học: " Research Article Super-Orthogonal Block Codes with Multichannel Equalisation and OFDM in Frequency Selective Fading" pdf
Ngày tải lên :
21/06/2014, 17:20
... codes (STTCs) [2, 3], space-time
block codes (STBCs) [4, 5], and super-orthogonal space-time
trellis codes (SOSTTCs) [6, 7]. SOSTTCs are a new class of
space-time codes that combine set partitioning ... two-symbol blocks with L
rays, is given by 2
∗(L−1)∗S,whereS is the original number
of states of the super-orthogonal block code in space-time
domain.
3.2. Super-Orthogonal Block Codes for OFDM. ... provided the original work is properly
cited.
Super-orthogonal block codes in space-time domain (i.e., Super-orthogonal space-time trellis codes (SOSTTCs)) were initially
designed for frequency nonselective...
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Báo cáo hóa học: " Research Article Exploiting Transmit Buffer Information at the Receiver in Block-Fading Channels" ppt
Ngày tải lên :
21/06/2014, 22:20
... different ways, and hence there is a link
indicated in Figure 4 between FF transmission block and CSI
computational block. A temporal representation of the entire
process is also given in Figure 4.
The ... applicability of the results, a
block- fading channel with Rayleigh fading statistics is used.
However, the proposed methods are applicable in general for
any block- fading channel, with other ... paper is that having partial or complete
instantaneous TBIR leads to a lower packet loss rate in block- fading channels assuming the availability of partial CSIT. We provide
a framework for the...
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Báo cáo hóa học: "Research Article Feedback Quantization for Linear Precoded Spatial Multiplexing" ppt
Ngày tải lên :
21/06/2014, 22:20
... data
transmission. The transmission is organized in a blockwise
fashion, that is, feedback is only possible at the beginning of
each new block, and every block has a duration of T
f
.We
assume the channel ... orthogonal space-time block codes, ” IEEE
Transactions on Signal Processing , vol. 53, no. 1, pp. 64–73,
2005.
[17] G. Leus, C. Simon, and N. Khaled, “Spatial multiplexing
with linear precoding in ... space-time linear precoders
and decoders,” IEEE Transactions on Signal Processing,
vol. 50, no. 5, pp. 1051–1064, 2002.
[2] D. P. Palomar, M. Bengtsson, and B. Ottersten, “Minimum
BER linear transceivers...
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Báo cáo hóa học: " Research Article Impact of Carrier Frequency Offsets on Block-IFDMA Systems" pptx
Ngày tải lên :
21/06/2014, 23:20
... transmitted on blocks of subcarriers
that are equidistantly distributed over the N subcarriers.
Thus, Q
= ML,whereL stands for the number of blocks and
M the number of subcarriers per block. The ... (q
/
=q, u
= u) is the intrablock interference, caused by
the other symbols transmitted by the desired user u.From
now on, we group the self-interference and the intrablock
interference both caused ... f )is
a periodic function with period 1/LT
= KM/NT,which
corresponds to the spacing between two blocks of M adjacent
subcarriers. Also note that when M increases, it can be
EURASIP Journal on...
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Báo cáo hóa học: " Research Article Performance Analysis of Space-Time Block Codes in Flat Fading MIMO Channels with Offsets" potx
Ngày tải lên :
22/06/2014, 19:20
... imperfect carrier offset compensation on the performance of space-time block codes. The symbol error
rate (SER) for orthogonal space-time block code (OSTBC) is derived here by taking into account the ... Tao, L. Jianfeng, H. Jianjun, and Y. Guangxin, “Performance
analysis for orthogonal space-time block codes in the absence
of perfect channel state information,” in Proceedings of the 14th
IEEE International ... “Effect of imperfect channel in-
formation on M-QAM SER performance of orthogonal space-
time block codes, ” in Proceedings of the 57th IEEE Semiannual
Vehicular Technology Conference (VTC ’03),...
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