disadvantages of wireless sensor networks ppt
FED: FUZZY EVENT DETECTION MODEL FOR WIRELESS SENSOR NETWORKS pptx
Ngày tải lên :
30/03/2014, 16:20
... algorithm
for wireless sensor networks, ” International Journal of Wireless & Mobile Networks (IJWMN),
vol.2, no.3, August 2010.
International Journal of Wireless & Mobile Networks (IJWMN) ...
nature of wireless sensor networks, migration phase of the algorithm has the duty of
balancingthe capabilities of the cluster in case where some sensors fail. That is, whenever a
scare sensor ... random.
We use three types of sensors(SensorType1, SensorType2 and SensorType3) with equal
quantities. In each experiment a sensor field is generatedwith predefined number of nodes that
has been...
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On the Lifetime of Wireless Sensor Networks
Ngày tải lên :
28/04/2014, 13:38
... 2002b. Wireless sensor networks:
A survey. Elsevier Comput. Netw. 38, 393–422.
A
RAMPATZIS, T., LYGEROS,J.,AND MANESIS, S. 2005. A survey of applications of wireless sensors
and wireless sensor networks. ... in wireless
sensor networks. In Proceedings of the 24th IEEE Conference on Computer Communications
(INFOCOM).
C
ARDEI
,M.AND WU, J. 2004. Coverage in wireless sensor networks. In Handbook of Sensor ... On the Lifetime of Wireless Sensor Networks
ã
5:39
SORO,S.AND HEINZELMAN, W. B. 2005. Prolonging the lifetime of wireless sensor networks via
unequal clustering. In Proceedings of the 19th IEEE...
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Báo cáo hóa học: " An analytical model for the intercell interference power in the downlink of wireless cellular networks" ppt
Ngày tải lên :
21/06/2014, 00:20
... D.)
LetuslastnoticethatthechoiceforvaluesofM and
J
is a trad e-off between different aspects: cardinality of
the resulting typical set (i.e., tractable number of points),
number of simulation runs and accuracy of the histo-
gram. ... generate sequences of ‘rando m’
numbers belonging to a fixed set of values. In order to
take into account the ignorance of the contribution of
the highest interference gains of the N - M non-com-
pelled ... a
practical tool for the assessment and simulation of
wireless cellular networks when the effect of shadow-
ing is to be considered.
The main contributions of this paper are as follows:
ã In the special...
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Báo cáo hóa học: " Research Article Tree Based Protocol for Key Management in Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 11:20
... polyno-
mial of degree λ) to each sensor. So, each sensor node stores
a polynomial with λ +1coefficients and every pair of sensor
nodes can establish a key using the property of symmetry of
polynomials. ... convergence of technological advances in microelectron-
ics and wireless communications has enabled the emergence
of a promising area: Wireless Sensors Networks (WSNs).
WSNs come from the combination of ... the father of the sensor in the final spanning
tree. The base station is the root of the tree, so
Father
BS
is set to null.
(ii) Level
i
: the level of the sensor in the tree. The level of
the root...
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Báo cáo hóa học: " Research Article Random Field Estimation with Delay-Constrained and Delay-Tolerant Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 17:20
... “Distributed
sampling for dense sensor networks: a bit-conservation prin-
ciple,” in Proceedings of the 2nd International Workshop on
Information Processing in Sensor Networks, vol. 2634 of Lecture
Notes in ... in wireless sensor networks, ”
IEEE/ACM Transactions on Networking, vol. 14, no. 2, pp. 316–
329, 2006.
[3] S. C. Draper and G. W. Wornell, “Side information aware
coding strategies for sensor networks, ” ... Ministry of Science and Innova-
tion (FPU grant AP2007-01654).
References
[1] I. F. Akyildiz, W. Su, Y. Sankarasubramaniam, and E. Cayirci,
Wireless sensor networks: a survey,” Computer Networks, ...
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Báo cáo hóa học: "Research Article A High-Accuracy Nonintrusive Networking Testbed for Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 17:20
... nodes.
Sensor nodes are the basic cells of the wireless sensor
networks. Therefore it is fundamental to learn the architec-
ture of sensor nodes. At present there exist a large number
of kinds of sensor ... in such networks due to the constrained resource, the
dynamics of wireless communications, the frequent failures
of sensor nodes and the variety of the applications for
wireless sensor networks.
Some ... over the wireless links of the wireless sensor network
itself. The other is to transfer the test data over additional
networks. For the former category, the bandwidth of the
wireless sensor networks...
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Báo cáo hóa học: "Research Article Low-Complexity One-Dimensional Edge Detection in Wireless Sensor Networks" ppt
Ngày tải lên :
21/06/2014, 17:20
... values of η
o
), regardless of the sensor SNR.
On the other hand, for low values of the communication
0
0
5
10
D
15
20
p
= 0
p
= 0.5
p
= 0.2
0.2
SNR
sensor
= −10 dB
SNR
sensor
= 0dB
SNR
sensor
= ... leakage: some of the sensors (namely, sensors
s
2
, s
3
, s
5
,ands
6
in Figure 1(b)) thus detect the presence
of the gas (namely, sensors s
2
, s
3
, s
5
,ands
6
) whereas the
remaining sensors (namely, ... based, regardless of the quan-
tization strategy, on the assumption of knowledge of the
number of edges N
bs
at the AP. However, in the scenario
of interest, for example, monitoring of a gas leakage,...
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Báo cáo hóa học: " Research Article Distributed KDC-Based Random Pairwise Key Establishment in Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 17:20
... Harn, “Location-
aware key management scheme for wireless sensor networks, ”
in Proceedings of the ACM Workshop on Security of Ad Hoc and
Sensor Networks (SASN ’04), pp. 29–42, October 2004.
[17] ... “Location-based pair-wise key establish-
ments for static sensor networks, ” in Proceedings of the 1st
ACM Workshop on Security of Ad Hoc and Sensor networks, pp.
72–82, October 2003.
[16] D. Huang, M. ... sensor nodes in order to offer data
confidentiality and data integrity.
Large-scale WSNs consist of a large number of sensor
nodes [2, 3]. Usually, sensor nodes have limited capacity
in terms of...
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Báo cáo hóa học: "Research Article Efficient Path Key Establishment for Wireless Sensor Networks" ppt
Ngày tải lên :
21/06/2014, 22:20
... 102–114, 2002.
[2] C. Karlof and D. Wagner, “Secure routing in wireless sensor
networks: attacks and countermeasures,” in Proceedings of the
1st IEEE International Workshop on Sensor Network Protocols
and ... multipath
routing for mobile ad hoc networks, ” in Proceedings of the
1st ACM Inter n ational Workshop on Performance Evaluation
of Wireless Ad Hoc, Sensor, and Ubiquitous Networks (PE-
WASUN ’04), pp. ... network. The value of t
may be set to reflect the density of the node within
the neighborhood. For dense networks, the value of
t should be small; while for sparse networks, a large
value of t may be...
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Báo cáo hóa học: " Research Article An Efficient Multibit Aggregation Scheme for Multihop Wireless Sensor Networks" pptx
Ngày tải lên :
21/06/2014, 23:20
... (MMSE)
estimate of the number of descendants of that child deciding
in the favor of event. In [6], it is assumed that every
sensor node has knowledge of the number of descendants
ofitseachchild.In[7], ... for wireless
microsensor networks, ” IEEE Transactions on Wireless Com-
munications, vol. 1, no. 4, pp. 660–670, 2002.
[20] G. Ferrari and M. Martal
´
o, “Extending the lifetime of sensor
networks ... properly
cited.
1. INTRODUCTION
Wireless sensor network (WSN) [1] is a network formed by a
large number of sensor nodes deployed in the area of interest.
These sensor nodes can sense, process,...
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Báo cáo hóa học: " Research Article Dynamic Session-Key Generation for Wireless Sensor Networks" ppt
Ngày tải lên :
21/06/2014, 23:20
... 2008
Recommended by Jong Hyuk Park
Recently, wireless sensor networks have been used extensively in different domains. For example, if the wireless sensor node of a
wireless sensor network is distributed in ... node.
Therefore, it is necessary to make use of secure transmission
on wireless sensor networks. However, there are obvious
restrictions on the resources of wireless sensor networks.
The restrictions on the ... 3.
Step 1. When a new sensor node is joined to the wireless
sensor networks, the sensor node make use of K
si
to encrypt
the preset parameters a
j
and K
msg
with the ID
sj
of the sensor
node; a complete...
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