design technologies for low power vlsi
Báo cáo hóa học: " Research Article Efficient Algorithm and Architecture of Critical-Band Transform for Low-Power Speech Applications" pdf
Ngày tải lên :
22/06/2014, 19:20
... power [11]. The existing
CBT methods are not suitable for low- power VLSI realiza-
tion because of the high computation complexity and high
hardware complexity. Therefore, there is a need to design ... with the Center for
Signal Processing, NTU as a Research Engi-
neer. His research interests include digital IC design, VLSI architec-
tures for digital signal processing, low- power design, and embed-
ded ... and R. W. Brodersen, Low-
power CMOS digital design, ” IEEE Journal of Solid-State Cir-
cuits, vol. 27, no. 4, pp. 473–484, 1992.
[18] B. M. Bass, “A low- power, high-performance, 1024-points...
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A low power high dynamic range broadband variable gain amplifier for an ultra wideband receiver
Ngày tải lên :
06/11/2012, 10:26
... limitation
In this VGA design, the output signal is fixed to be 1V
pp
with 2.5V power
supply, to meet the full scale of the ADC. Thus, the suitable VGA topology for this
design has to provide ... suitable for low power applications.
(3) Summary of analog-multiplier-based VGA
In summary, the multiplier-based VGA has good linearity and large gain tuning
range, but it is not power efficient ...
generated by the subtraction between g
mp1
and g
mp2
. And hence, it is not suitable for low-
power VGA design.
II.1.3 Differential pair with source degeneration
Another commonly used VGA...
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ultra low-power electronics and design
Ngày tải lên :
01/06/2014, 11:43
... to proposals on other levels in the design flow and to future work.
Keywords: Low- power design, dynamic power reduction, leakage power reduction, ultra-
low- V
th
devices, multi-V
dd
, multi-V
th
, ... threshold voltages
for further power reduction. Especially for designs where minimization of
total power consumption is key (as compared to e.g. minimization of standby
power for mobile products), ... Pacific Design Automation Conference
2003, pp. 400-403.
[20] K. Usami, M. Horowitz, Clustered Voltage Scaling Technique for Low- Power Design,
Proceedings of the International Symposium on Low Power...
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Báo cáo hóa học: " Research Article A Subsample-Based Low-Power Image Compressor for Capsule Gastrointestinal Endoscopy" docx
Ngày tải lên :
21/06/2014, 07:20
... ultra -low-
power image compressor for capsule endoscope,” BioMedical
Engineering Online, vol. 5, article 14, 2006.
[15] X. Xie, G. Li, X. Chen, X. Li, and Z. Wang, “A low- power digital
IC design ... converting into one dimension for B component.
Raw image
R
G1
G2
B
Compression
image for G1
Compression
image for G2
Noncompression
image for B
Compression
image for R
Entropy
coding
Entropy
coding
Entropy
coding
4-by-4
zigzag
scan
4-by-4
zigzag
scan
8-by-8
zigzag
scan
Quantization
R-table
4-by-4
quantization
G-table
4-by-4
quantization
G-table
2D
8-by-8
DCT
2D
4-by-4
DCT
2D
4-by-4
DCT
2 ... pages
doi:10.1155/2011/257095
Research Ar ticle
A Subsample-Based Low- Power Image Compressor for
Capsule Gastrointestinal Endoscopy
Meng-Chun Lin
1
and Lan-Rong Dung
2
1
Department of IC Design, Avisonic Technology Corporation,...
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Báo cáo hóa học: " Research Article Optimal Channel Selection for Spectrum-Agile Low-Power Wireless Packet Switched Networks in Unlicensed Band" doc
Ngày tải lên :
21/06/2014, 22:20
... exact method makes it infeasible for
practical applications. Therefore, it is needed to derive
an approximate solution for the success probability giving
acceptable performance with minimal computational ... f
t
+1
. (11)
Following the above formulation, the history of trans-
mission outcomes for each channel can be written as x(t)
=
(i
t
, b
t
, s
t
, f
t
) which we call the informational state ... the trafficpattern
of interfering network in each channel.
For the reasons that will follow, we assume that the
duration of idle intervals, for channel i, is modeled as a
geometric random variable...
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Báo cáo hóa học: "Research Article Dual Wake-up Low Power Listening for Duty Cycled Wireless Sensor Networks" docx
Ngày tải lên :
21/06/2014, 23:20
... per node of LPL and DW-LPL for
varying sleep intervals, T
p
for LPL and T
b
for DW-LPL. In
Figure 8(a), T
p
= 100 ms is best for data generation interval
T
d
= 10 s. For T
d
= 30 s, the optimal ... analysis.
Symbol Meaning CC2420
P
l
Power in listening 56.4 mW
P
t
Power in transmitting 52.2 mW
P
r
Power in receiving 56.4 mW
P
a
Power in awaking 670 uW
P
s
Power in sleeping 3 uW
t
a
Time to ... sporadic traffic and describe adaptive schemes
for DW-LPL.
3.2. Low power listening for sporadic traffic
Many sensor applications periodically generate trafficfor
data collection. At every collection...
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Báo cáo hóa học: " Research Article A Systematic Approach to Design Low-Power Video Codec Cores" doc
Ngày tải lên :
22/06/2014, 19:20
... the total power consumption and the final
throughput.
In this paper, we propose a dataflow oriented design ap-
proach for low- power block based video processing and ap-
ply it to the design of ... [9]. The techniques for power aware system
design [10] are grouped according to their impact on the en-
ergy delay product in [4]. Our proposed design flow assigns
them to a design step and identifies ... implementation. Additionally, such design approach
shortens the design time: it favors design reuse and allows
structured verification and fast prototyping.
The proposed design flow (Figure 1) uses different...
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Báo cáo hóa học: " Research Article LDPC Code Design for Nonuniform Power-Line Channels" pptx
Ngày tải lên :
22/06/2014, 19:20
... method to design allotted LDPC
codes for DMT channels. The method is general and can be
used for every nonuniform channel. This method allows for
design of optimized LDPC codes which outperform conven-
tional ... systems with nonuniform channels.
This paper is organized as follows. In Section 2,webriefly
review the required background of nonuniform channels
and LDPC coding for uniform and nonunifor m channels.
Section ... parameters. We propose a coding sys-
tem for discrete multitone channels that allows for using a single code over a nonuniform channel. The number of code parameters
for the proposed system is much greater...
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Multi-Carrier Technologies for Wireless Communication
Ngày tải lên :
02/03/2013, 16:59
... Figures 1 and 2, the performance of OFDM,
measured in terms of probability of error, is very poor.
The reason for the poor performance follows. In each narrow band
carrier, the low- rate data stream ... multi-carrier technologies of OFDM and MC-CDMA, explaining the
reasons that underlie their growing importance. In the sections that follow, we
explain how a common multi-carrier platform can be designed for ... probability of error performance is evaluated for a TDMA
transmitter sending 2N information symbols in a packet that would typically
hold N orthogonal symbols, and with a receiver designed based on...
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Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks
Ngày tải lên :
26/04/2013, 11:15
... order to ensure
strong header protection. Three header formats are used: one for MCS-7, MCS-8 and
ix
correction for CS-1; CRC only for CS-2, CS-3 and CS-4. 40,000 radio blocks per
coding ... appropriate modulation and coding scheme for coming transmissions,
so as to maximize the data rate. With LA the link performance is dependent on the
individual performance of each packet, coded in ... and correction for CS-1; CRC only for CS-2, CS-3 and CS-4. 40,000 radio blocks per
coding scheme. Data block size=456 bits [Source: 3GP01a].
xxii
Spreading Factor=256, Power Control Step=1...
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lesson plan 10_unit6-an excursion(reading and listening for low level)
Ngày tải lên :
01/07/2013, 01:26
... students will be able to:
- get information about some beautiful places in Vietnam.
- improve reading comprehension skill.
II. Skills: Reading for gist and for specific information
III. Methods: Mainly ... poster of information about photos:
- Asks Ss to translate the information into Vietnamese
by matching each box with the given translation
- Asks Ss to match the pictures with the information ... information.
Language: Listen to a short talk about a picnic.
Some words: glorious, destination, spacious, left-over,
Botanical Garden.
Skills: Listening for main ideas and listening for...
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