báo cáo hóa học:" Fair, efficient, and power-optimized spectrum sharing scheme for cognitive radio networks" doc
Báo cáo hóa học: " An efficient and secure anonymous authentication scheme for mobile satellite communication systems" doc
... the
random number k,1≤ k<q,whereq is a large prime
factor of p - 1. On the other hand, the proposed
scheme does not require any symmetric and asymmetric
operations. Therefore, the proposed scheme ... computation for
mobile users, and (3) it does not require sensitive verifi-
cation table. Nevertheless, we f ound that Chen et a l.’s
scheme still requires high computations for...
Báo cáo hóa học: " Research Article A Sociability-Based Routing Scheme for Delay-Tolerant Networks" doc
... hand, in order
for the nodes to produce and exchange such information in
an inexpensive manner. On the other hand, the challenge
stands in capturing as much as possible of the exploitable
information ... is the formalization
of a sociability concept and a guideline to its exploitation
for efficient forwarding in DTNs. Additionally, a framework
for its evaluation and comparison with...
báo cáo hóa học:" Research Article Hybrid RSS-RTT Localization Scheme for Indoor Wireless Networks" doc
... standard deviation of the shadow
fading X was simulated as a uniform random value between
2.85 dBm and 3.45 dBm. On the other hand, according to
the expression (8) for each actual position and ... conventional TOA and TDOA schemes. In [9]
an algorithm of neural networks is implemented for the
hybrid scheme that combines RSS and TOA measurements,
enhancing the overall performance...
Báo cáo sinh học: "Fair, efficient, and power-optimized spectrum sharing scheme for cognitive radio networks" pot
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Fair, efficient, and power-optimized spectrum sharing scheme for cognitive radio
networks
EURASIP ... power level, modulation scheme, and coding
scheme. There are four major stages of the CR: (1) spectrum sensing, (2)
spectrum management, (3) spectrum sharing, and...
Báo cáo hóa học: " Research Article Channel Sensing without Quiet Period for Cognitive Radio Systems: A Pilot Cancellation Approach" ppt
... adopting
quiet period and the PU detection scheme exploiting CSC
[6]. The performance results for these two schemes are
obtained by using simulation. In simulation, the scheme with
quiet period performs the ... signal and the pilot
sequence. From now on, we present only the theoretical
results for the proposed scheme.
Next,wecomparetheperformanceoftheproposed
scheme with those...
Báo cáo hóa học: " Research Article Bit Level Synchronized MAC Protocol for Multireader RFID Networks" docx
... times for various values of clock offsets
Figure 15: Performance gain through simulation for n = 5for
varying overlap factor α with guard times based on different δ.
This was not accounted for in ... j)andM
j
,forall j.Letk be the size of M
κ
and thus is
the frame size to be used by all readers. Also, based on the
assumption of a uniform tag distribution among all readers,
|M
j
|=k. Th...
báo cáo hóa học:" CDSWS: coverage-guaranteed distributed sleep/wake scheduling for wireless sensor networks" docx
... between x
i
and x
j
.
Denote that the numbers of sensors in A and B are N
A
and N
B
. For any x
i
∈ A and
x
j
∈ B, if d(x
i
, x
j
) ≤
√
3r
s
, then the connection value between x
i
and x
j
is ... the network and using only a necessary set of nodes for
information collection and packet delivery is one popular way of energy conservation [16].
GAF uses geographic location infor...
Báo cáo hóa học: " Both FA- and mPEG-conjugated chitosan nanoparticles for targeted cellular uptake and enhanced tumor tissue distribution" docx
... contributions
Hou ZQ, Yi YF, and Zhang QQ conceived of the study and participated in
the design of the study and performed the statistical analysis and drafted
the manuscript. Zhan CM and Jiang QW carried ... Preparation and evaluation as a matrix for controlled
release of pharmaceuticals. J Pharm Pharmcol 1992, 44:283.
16. Gupta KC, Jabrail FH: Controlled-release formulations...
báo cáo hóa học:" Adaptive access and rate control of CSMA for energy, rate, and delay optimization" docx
... function of and , and an increasing function of
and for all values of .
Proof: In order to prove the theorem we show through induction that for
we have for any vector that increase and , and decrease ... state update function and define two possible next states
and . For known values
of and we can use (1)–(3) and easily show that in which
for some . Thus ....
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