rtl design for low power

Ngày tải lên: 01/07/2014, 11:20

... 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...

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...

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 23/06/2014, 01:20

... 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...

Ngày tải lên: 06/11/2012, 10:26

Ngày tải lên: 25/12/2013, 10:38

... 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...

Ngày tải lên: 01/06/2014, 11:43

... Open Access Novel low- PAPR parallel FSOK transceiver design for MC-CDMA system over multipath fading channels Juinn-Horng Deng * and Jeng-Kuang Hwang Abstract A low peak-to-average power ratio (PAPR) ... performance and outperform the con- ventional STBC MISO and MIMO systems. The rest of this article is organized as follows. In Sec- tion 2, we pre sent the SISO system block d iagram and formulate ... 2011:144 http://jwcn.eurasipjournals.com/content/2011/1/144 Page 2 of 14 to signal power. For performance comparisons, BER simulations are conducted for the proposed QPS K-FSOK MC-CDMA, conventional MC-CDMA [8],...

Ngày tải lên: 20/06/2014, 22:20

... 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,...

Ngày tải lên: 21/06/2014, 07:20

... 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...

Ngày tải lên: 21/06/2014, 22:20

... 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...

Ngày tải lên: 21/06/2014, 23:20

... 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...

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 28/08/2014, 02:29

Ngày tải lên: 24/10/2014, 22:00

... the joint design has a better performance than the various separate design schemes. Furthermore, the joint source precoder, relay for- warding matrix and destination equalizer design for dual ... closed-form solution is the optimal solution. Chapter 3—Robust Transceiver Design for AF MIMO-OFDM Relay Sys- tems: In this chapter, joint design of linear relay precoder and destination equalizer for ... of cooperative protocols: amplify-and- forward (AF), decode-and-forward (DF) and compress-and-forward (CF). For AF strategy, the relay only amplifies and forwards the received signal from the source to...

Ngày tải lên: 20/11/2012, 11:31

... Upstream Design For Six Sigma 30 2.9 Summary 31 3. Introduction to Service Design for Six Sigma (DFSS) 33 3.1 Introduction 33 3.2 Why Use Service Design for Six Sigma? 34 3.3 What Is Service Design For ... (FMEA) development Design for serviceability Simulation/optimization Design scorecard 4. Preliminary design Design parameters with Design mapping (process and detailed specification functional mappings) Design ... introduce the concept of design for X (DFX) as it relates to service transactions and builds from the work performed for product design. In this context, we show that DFX for service requires that...

Ngày tải lên: 07/02/2013, 09:40

... to power amplifier design and includes Load Pull measurement and design techniques and a more analytic design example of a broadband, efficient amplifier operating from 130 to 180 MHz. The design example ... responsibly manufactured from sustainable forestry, in which at least two trees are planted for each one used for paper production. 18 Fundamentals of RF Circuit Design () ()             ++ + +       ++ −= sbbeb ebsbb T sbbeb eb Lm in out Rrr rRr Cj Rrr r Rg V V '' '' '' ' 1 1 ω (1.49) Note ... (1.79) The low frequency value for S 21 is therefore: ()       ++ = 50 50.2 '' ' 21 bbeb eb m rr r gS (1.72) () 77.3 501002500 2500 22 21 =       ++ = S (1.80) As before...

Ngày tải lên: 08/04/2013, 10:50

Ngày tải lên: 04/06/2013, 22:49