Báo cáo hóa học: " Research Article How to Solve the Problem of Bad Performance of Cooperative Protocols at Low SNR Charlotte Hucher, Ghaya Rekaya-Ben Othman, and Jean-Claude Belfiore" potx
... pages
doi:10.1155/2008/243153
Research Article
How to Solve the Problem of Bad Performance of
Cooperative Protocols at Low SNR
Charlotte Hucher, Ghaya Rekaya-Ben Othman, and Jean-Claude Belfiore
Ecole Nationale Superieure ... cooperation).
Outage probabilities and simulation results show that the adaptive cooperation protocols solve the...
... capable of
acquiring the frequency-hopping pattern, signature sequence
and time synchronization of the user. The output of the
frequency dehopper in the receiver enters the despreader and
then the ... at mainlobe and a at sidelobe is developed.
The width of the mainlobe and the height of the sidelobe
are calculated based on the first moment and th...
... the proof.
Acknowledgments
The authors would like to thank the referee and the editor for their careful reading of the
manuscript and their many valuable comments and suggestions. The research ... The proof of uniqueness is the same to that
of Theorem 2.1. Therefore, {x
n
} converges to the unique common fixed point of S and T.
Corollary 2.4. Let E be...
... to reach
further than the filter slopes of the corresponding subband
split filter. We had to find a compromise between setting the
band limits of the band-stop filtering far outside the subband
of ... multiple subbands [1],
a systematic test procedure should measure the attenuation
in each of them separately. It is therefore required that
the test stimuli can stimulate e...
... 2.1 implies that 1.1 has a solution u ut if and only if u is a fixed point of T.
From Lemmas 2.1 and 2.2 and the Ascoli-Arzela theorem, the following follow.
Lemma 2.5. The operator defined ... Mathematics, Shanghai Jiao Tong University, Shanghai 200240, China
2
Department of Mathematics and Physics, Anyang Institute of Technology, Anyang, Henan 455000, China
3
Departm...
... years, the problem has attracted a great deal of people. Lions
6 used the theory of maximal monotone operators to solve the existence of solution of the
following problem:
Δu 0, in Ω ×
0,T
, ... considered blowup
of the solution of problem 1.8–1.10. For more results concerning the related problem 1.8–
1.10, we refer the reader to 3 , 6,...
... With the proposed hybrid
JEEMAS strategy, the destination needs to feedback the index
of the path with the maximum mutual information to the
source and each stage. Recall from the derivation of the
achievable ... 3).
Proof. To prove the theorem we will compute the achievable
DM-tradeoff of the CF strategy (30) and show that it matches
with the upper boun...
... element
P of F
q
k
and, under this
representation, to find factors Y
−P(X)ofR is equivalent to
find factors Y
−
P of
R(Y) =
j≤l
R
j
Y
j
, that is, to compute
factorization of a univariate polynomial ... can change up to w of
its coordinates. (In fact, we suppose that the action of the
warden on the stego-medium translates onto the stego-data
in such a way th...
... noted that it follows from 6 that
the complex Monge-Amp
`
ere operator is well defined on E
p
. For further information about
pluripotential theory and the complex Monge-Amp
`
ere operator we ... special functions and their generalizations have had
great impact on, for example, analysis, mathematical physics, and statistics. In this paper we
prove the following inequality for th...
... is the only feasible way to take all the
above mentioned aspects into account.
To summarize, the goals of the paper are
(i) to understand how equalization techniques affect the
performance at ... from the wireless links
point of view (i.e., at data-link and physical levels).
The specific configuration of the simulation platform
adopted for the present inve...