performance comparison of adhoc routing protocols
Báo cáo hóa học: "Research Article Comparison of Channel Estimation Protocols for Coherent AF Relaying Networks in the Presence of Additive Noise and LO Phase Noise Stefan Berger and Armin Wittneben" pptx
Ngày tải lên :
21/06/2014, 17:20
... estimates and therefore the
performance of any coherent gain allocation scheme. While
the impact of estimation noise on all protocols of Section 4
is the same, the impact of phase noise is not. In ... accuracy of the channel estimates obtained by the
protocols is different. For symmetry reasons we can constrain
ourselves to the discussion of only two of the four protocols.
We quantify the quality of ... large
σ
2
pn
, the performance of both protocols converges because
the phases of the channel estimates will asymptotically
be uniformly distributed. Furthermore, it can be observed
that the comparison...
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Báo cáo hóa học: " Supporting QoS in MANET by a Fuzzy Priority Scheduler and Performance Analysis with Multicast Routing Protocols" docx
Ngày tải lên :
23/06/2014, 00:20
... specifications of the routing protocol.
5. CONCLUSION
In this paper, we have analyzed the performance of the novel
fuzzy-based pr iority scheduler for data trafficandevaluated
the effect of inclusion of this ... under-
lying multicast routing protocols, like NTPMR, CAMP, and
ODMRP, run over IEEE 802.11 as the MAC protocol. Queu-
ing dynamics with different degrees of mobility and routing
protocols show that ... expiry time of packet, queue length of the node, and
data rate of the source, are considered and the application of
fuzzy logic to combine these variables and hence find the pri-
ority index of the...
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Báo cáo khoa học: "Paragraph-, word-, and coherence-based approaches to sentence ranking: A comparison of algorithm and human performance" ppt
Ngày tải lên :
17/03/2014, 06:20
... choose the first sentences of each
1
We did not use any machine learning techniques to
boost performance of the algorithms we tested.
Therefore performance of the algorithms tested here ... weight of sentence i in
document j, n
si
is the number of words in sentence
i, k is the kth word in sentence i, tf
jk
is the
frequency of word k in document j, n
d
is the
number of documents ... definition of discourse
segments because we used the discourse trees from
Carlson et al. (2002)’s database of coherence-
annotated texts.
3.1.2 Kinds of coherence relations
We assume a set of coherence...
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Báo cáo toán học: " Recursive analytical performance evaluation of broadcast protocols with silencing: application to VANETs EURASIP Journal on Wireless Communications and " pptx
Ngày tải lên :
20/06/2014, 20:20
... might terminate before
reaching the end of the network.
2.2 Performance metrics of interest
In this work, the performance of probabilistic multihop broadcast protocols will be investigated using ... conditions—
this is the very idea of IF. The shape of p, as a function of d, is shown in Figure 5, for different values of c
and ρ
s
. It can be observed that the PAF of SIF is monotonically increasing ... the average global performance metrics (namely, RE, D, and TE), on the basis of the average local
performance metrics of a generic TD. We recall that, thanks to the assumptions of the deterministic...
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Báo cáo hóa học: " Research Article Messaging Performance of FIPA Interaction Protocols in Networked Embedded Controllers" docx
Ngày tải lên :
22/06/2014, 05:20
... development
of agent platforms which include an abstract architecture and
a set of interaction protocols (IPs) [4].
Key points in the development of multiagent systems are
the design of behaviors, ... length of each FIPA message is around 282
characters. This value can change; it depends on the content
of the message. For the purpose of the tests, only the agents’
threads were running within soft ... within soft real-time heap of the AJ-
100 microprocessor. In addition, the length of the messages
was held constant. In the case of the request protocol, the
amount of sent and received messages...
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Báo cáo hóa học: " Research Article Messaging Performance of FIPA Interaction Protocols in Networked Embedded Controllers" ppt
Ngày tải lên :
22/06/2014, 19:20
... development
of agent platforms which include an abstract architecture and
a set of interaction protocols (IPs) [4].
Key points in the development of multiagent systems are
the design of behaviors, ... previous work of the authors [17] measured the aver-
age round trip time (aRTT) of single inform messages. The
purpose of the test was to observe the scalability in terms of
pairs of agents. The ... investigated the performance of
the agent platform MicroFIPA-OS running on handled de-
vices and wireless transmission media at 9600 bps. The work
shows the timing response of the request interaction...
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Báo cáo hóa học: " Research Article A Comparison of Detection Performance for Several Track-before-Detect Algorithms" doc
Ngày tải lên :
22/06/2014, 19:20
... ninety
percent probability of detection for that SNR. The false track
performance at the SNR values of interest is shown in Tab l e 2.
The false track performance of the PDAF-AI is clearly unac-
ceptable ... detection performance of four alternative track-before-
detect algorithms has been investigated for a range of target
SNR values and speeds. For most of the scenarios the differ-
ence in detection performance ... Algorithm tuning
Each of the algorithms has a number of different parame-
ters which need to be selected to ensure good performance.
It is of interest to characterise how algorithm performance
varies...
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Báo cáo hóa học: " Performance Evaluation of Important Ad Hoc Network Protocols" potx
Ngày tải lên :
22/06/2014, 22:20
... sent.
4. PERFORMANCE COMPARISON OF THE PROTOCOLS
For performance evaluation of different protocols, the latest
version of OPNET was u sed, which supports DSR, TORA,
and AODV protocols. For all simulations, ... find any dependence of route dis-
covery time on the number of loads.
Figure 27 shows the performance of the AODV protocol
in terms of the number of hops per route as a function of
S. Ahmed and M. ... vector (AODV) routing,
and temporally ordered routing algorithm (TORA). Although considerable amount of simulation work has been done to measure
the performance of these routing protocols, due...
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Báo cáo y học: "A three-country comparison of psychotropic medication prevalence in youth"
Ngày tải lên :
25/10/2012, 10:06
... School of Pharmacy, University of Maryland, Baltimore, Maryland, USA,
2
Department of
Psychiatry, School of Medicine, University of Maryland, Baltimore, Maryland, USA,
3
Departments of Psychiatry ... (110/1908) of US medicated youth, 1.9% (18/937)
of medicated Dutch youth and 4.6% (62/1358) of medi-
cated German youth.
Discussion
The major finding of this cross-national prevalence study
of psychotropic ... use of common surgical procedures: an inter-
national comparison of New England, England, and Norway.
N Engl J Med 1982, 307:1310-1314.
13. Sheehan KH: Caesarean section for dystocia: a comparison...
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Báo cáo y học: "A Comparison of Immuncapture Agglutination and ELISA Methods in Serological Diagnosis of Brucellosis"
Ngày tải lên :
25/10/2012, 10:56
... Evaluation of Brucellacapt
for the diagnosis of human brucellosis. Journal of Infection
2004; 49: 102–108.
3. Clavijo E, Diaz R, Anguita A, Garcia A, Pinedo A, Smith HL.
Comparison of a Dipstick ... T.
Comparison of Coombs and immunocapture-agglutination
tests in the diagnosis of brucellosis. Chin Med J
2005;118(3):252-4.
6. Prado A, Gutierrez P, Duenas A. Serological follow-up of bru-
cella ... Gültekin M,
Mamıkoğlu L. Comparison of serologic tests which are used in
the diagnosis of Brucellosis. Mikrobiol Bült 2005;39:291-9.
12. Alışkan H. Diagnostic value of Culture and serological...
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![Báo cáo y học: "Comparison of osteogenic potentials of human rat BMP4 and BMP6 gene therapy using [E1-] and [E1-,E2b-] adenoviral vectors"](https://media.store123doc.com/images/document/12/to/qp/medium_qpq1351678087.png)
Báo cáo y học: "Comparison of osteogenic potentials of human rat BMP4 and BMP6 gene therapy using [E1-] and [E1-,E2b-] adenoviral vectors"
Ngày tải lên :
31/10/2012, 17:08
... Similar activities of these two generations of BMP
adenoviral vectors were found in all models. These results indicate that the amount of viral gene expression and
the source of the BMP cDNA are ... BMPs, BMP9 uses a different
type of receptor and signal transduction pathway, the
details of which are not yet clear [30, 40]. The
functional performances of various BMP adenoviral
vectors ... the deletion of the E1
and E2b genes and the use of homologous (rat) BMP
genes do not improve the osteogenic potential of
direct BMP adenovirus vector gene therapy, the
results of this study...
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Báo cáo y học: "Postoperative pain scores and analgesic requirements after thyroid surgery: Comparison of three intraoperative opioid regimens"
Ngày tải lên :
02/11/2012, 10:14
... end of the dissection of the first
thyroid lobe while the infusion of remifentanil 0.05-0.25
µg/kg/min was maintained until the last surgical stitch.
If surgery had to be prolonged because of ... were enrolled.
After the dissection of the first thyroid lobe, all
patients received 1g of paracetamol and 20 mg nefopam IV
as part of multimodal prevention of postoperative pain.
Except for ...
parameters were recorded: time of extubation, first VAS
pain scores, the necessity, the amount of morphine titration
to reach a VAS of < 40, the incidence of nausea and
Int. J. Med. Sci....
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Báo cáo y học: "Comparison of Classical and Clozapine Treatment on Schizophrenia Using Positive and Negative Syndrome Scale of Schizophrenia (PANSS) and SPECT Imaging"
Ngày tải lên :
02/11/2012, 11:12
... enough
to build up a coherent theory of
the origin of the
brain abnormality in schizophrenia
.
This paper describes a
state -of- the-art approach of SPECT to correlate neuropsychological ... picture of the pattern of brain perfusion immediately
after administration. Therefore, the effect of sedation on measured
rCBF should be negligible. Thirty minutes after the administration
of ...
group.
Table 3 shows the comparison of the mean values of relative perfusion in schizophrenic subjects pre and post treatment. The
results show that the mean rCBF values of the schizophrenic patients...
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Báo cáo y học: "Comparison of a Two-Lead, Computerized, Resting ECG Signal Analysis Device, the MultiFunction-CardioGramsm or MCG (a.k.a. 3DMP), to Quantitative Coronary Angiography for the Detection of Relevant Coronary Artery Stenosis (70%)
Ngày tải lên :
03/11/2012, 10:58
... large inventory of normalized
mathematical indexes of abnormality. It is the pattern
of these mathematical indexes of abnormality, ob-
tained from analysis of multiple cardiac cycles of the
resting ... (0.86-0.903).(Figure 2). The coordinates of
the curve confirmed that a cut-off score of 4.0 pro-
vides the best combination of sensitivity and specific-
ity for the prediction of relevant coronary stenosis ... assumptions about the
distribution of the data (normal distribution) were not violated.
Discussion
The overall sensitivity of 91% and specificity of
85% of the MCG device in this meta-analysis...
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