performance evaluation of computer systems pdf

... systemlevel analysis to enable successful performance evaluation of a modern SoC 2.2 Model-Based RTES Performance Evaluation Process RTES performance evaluation process must follow disciplined ... generic performance evaluation process consists of the following steps Some of the concepts of this and the next subsection have been reused and modified from the work in [13]: (1) selection of the evaluation ... RTES performance evaluation Performance Metamodel for Streaming Data Embedded Systems The foundations of the performance metamodel defined in this work is based on the earlier work on Model of Computation

Ngày tải lên: 21/06/2014, 20:20

... effectiveness of RACE in the context of a representative open DRE system: NASA’s magnetospheric multiscale mission system Third, we present an empirical evaluation of RACE’s scalability as the number of ... embedded (DRE) systems form the core of many large scale mission-critical domains In these systems, achieving end-to-end quality of service (QoS) requires integrating a range of real-time capabilities, ... improving the performance and QoS of individual capabilities of the system (such as operating system scheduling mechanism and policies), they are not sufficient for DRE systems as these systems require

Ngày tải lên: 22/06/2014, 00:20

... performance of the algorithms are compared to the baseline case when the 95 6.3 Performance of EBTS and EBTS-DS Figure 6.4: Miss rate of EBTS with varying values of u for WSN consisting of heterogeneous ... the performance of the dynamic greedy slack reclamation scheme is almost as good as AADS. Lastly, we shall examine the effect of the rate of changing execution cycles of the tasks on the performance ... the runtime performance of the applications in terms of energy minimization. First, we proposed a method to improve the performance of static energy-aware scheduling 56 5.1 Design of Potential

Ngày tải lên: 30/09/2015, 06:05

... MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY HOANG TRUNG TUYEN DESIGN AND PERFORMANCE EVALUATION OF COMMUNICATION PROTOCOLS IN RFID SYSTEMS DOCTORAL DISSERTATION OF ... Hanoi−2023 MINISTRY OF EDUCATION AND TRAINING HANOI UNIVERSITY OF SCIENCE AND TECHNOLOGY HOANG TRUNG TUYEN DESIGN AND PERFORMANCE EVALUATION OF COMMUNICATION PROTOCOLS IN RFID SYSTEMS Major: Telecommunication ... 29 2.3 Performance Analysis 30 2.3.1 Quasi-decorrelating Detector (QDD) 30 2.3.2 Performance Analysis of Tag Identification Efficiency 32 2.4 Performance Evaluation

Ngày tải lên: 05/10/2023, 11:23

... single-carrier (SC) systems. The problem to be ad- dressed in this article regarding the addition of DDST sequences is the increased peak power (PP) and PAPR, which violates one of the main benefits of using ... in the transmitter and the removal of the data dependent pilots. Next, in Section 7, the throughput performance comparison of DDST and TDMT training based systems is provided. Finally, in Section ... Orozco-Lugo, MM Lara, Performance of data-dependent superimposed. .. 100,000 random frame realizations These results provide more insight on the average PAPR performance of the given system

Ngày tải lên: 21/06/2014, 23:20

... the performance of an SR reconstruction method on real-world data is measured 4.2.1 Setup 4.1 TOD method The TOD method is an evaluation method designed for system performance of a broad range of ... graphs show that the performance on real-world data can be approximated by the performance of a simulated data set The depicted performance of the two simulated data sets form a performance lower ... blur matrix that models the PSF of the camera system The regularization term on the right-hand side is PERFORMANCE EVALUATION EXPERIMENTS To measure the performance of SR reconstruction, several

Ngày tải lên: 22/06/2014, 20:20

... level of performance for the data trafficreceivedand data traffic sent, respectively. In case of radio receiver performance evaluation, TORA shows better performance for successful transmission of packets, ... considerable amount of simulation work has been done to measure the performance of these routing protocols, due to the constant changing nature of these protocols, a new performance evaluation is essential. ... shows consis- tent performance for most of the time and DSR remains at zero until the end of simulation time. 5. EFFECT OF LOAD VARIATION To study the effect of load (number of nodes in a network)

Ngày tải lên: 22/06/2014, 22:20

... terminal and on their identities. Performance of the two schemes is compared in terms of the probability of localization error as a function of the number (density) of active or passive devices. ... 15 20 25 Number of simultaneous active devices 0 10 20 30 40 50 60 70 80 P P (%) Mean performance Best performance Wrong performance Figure 5: P p as a function of the number of active devices ... constant, k wi is the number of penetrated walls of type i, l i is the attenuation due to the wall of type i, i = 1, 2, , I, N d and N fd are the numbers of normal and fireproof doors encountered by

Ngày tải lên: 22/06/2014, 23:20

... behaviors of the different criteria on various types of images Evaluation of segmentation results We illustrate in this part, the behavior of these evaluation criteria for different types of images ... the same level of precision) of real images in Section We conclude and give the perspectives of this study in Section UNSUPERVISED EVALUATION Without any a priori knowledge, most of evaluation criteria ... define the level of precision of a segmentation result is the number of its classes We use the unsupervised evaluation criteria for the comparison of the segmentation results of an image that

Ngày tải lên: 22/06/2014, 23:20

... Implementation of Balanced Scorecard for Performance Evaluation ii of Construction Department – Phu Tho Tourist Co., Ltd TABLE OF CONTENTS Page Pledge Acknowledgement Comments of Professors ... 3.2.2.6 Evaluation 58 Master Degree Thesis in Management Implementation of Balanced Scorecard for Performance Evaluation vi of Construction Department – Phu Tho Tourist Co., Ltd 3.3 Performance ... Implementation of Balanced Scorecard for Performance Evaluation ix of Construction Department – Phu Tho Tourist Co., Ltd LIST OF FIGURES Figure 1.1 Management process 7 Figure 1.2 Element of the

Ngày tải lên: 24/11/2014, 00:35

... Chapter 6: Performance evaluation of PV-PE system in conjunction with background MV and DV systems — airborne infection control 6.1 Background As introduced in Chapter two, in the context of airborne ... Determine the effectiveness of airborne infection control of the combined PV-PE system in conjunction with background MV or DV systems in terms of the localized extraction of the contaminated exhaled ... visualization of the effect of increase of PE flow rate. The first point to address is the drop of iF in all cases listed in the three figures, which means that the inhaled amount of exhaled contaminated

Ngày tải lên: 10/09/2015, 09:21

... higher exposure. In view of these situations, the objective of this chapter explores performance of PE system alone in conjunction with background MV and DV in terms of airborne infection control ... Comparison of iF between the three cases. With a sense of the impact of the background ventilation system on the flow pattern of the indoor air, thus influencing the concentration of exhaled ... has a better performance. 7.2.2 Comparison of Exposure Reduction after using PE The evaluation index Exposure Reduction was described in section 3.5.3. A direct comparison of the PE performance

Ngày tải lên: 10/09/2015, 09:21

... sketch of the measured case and photo of the experiment room. Figure 8.5 Sketch of the measured case and photo of the experiment room. (a) Sketch of the measured Top-PE case (b) Sketch of the ... visualization than the experimental study, such as the tracking of the pathlines of PV air and transportation of pollutants in the room. 8.2 Validation of CFD simulations 8.2.1 The geometrical model The two ... assumption that this model is capable of simulating convective heat transfer of buoyancy-driven air flow as long as a reasonable value of Y+ is achieved. The total number of cells is 6402744. Trial-and-error

Ngày tải lên: 10/09/2015, 09:21

... PERFORMANCE EVALUATION OF SOLAR CHIMNEYS IN THE TROPICS TAN YONG KWANG, ALEX (M. Sc.), MIT A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF BUILDING NATIONAL ... Prof Wong introduced me to the world of natural ventilation. During these four years of PhD studies, from the learning of experimental procedures, model validation to simulated analysis, Prof ... 67 3.4.1 Operability and Performance of Solar Chimney 67 3.4.3 Effects of Position of Solar Chimney’s Inlet . 74 3.4.3 Effects of Ambient Air Speed

Ngày tải lên: 10/09/2015, 09:21

... background of the recent awareness of the effect of ventilation on airborne infection control and different types of conventional mechanical ventilation systems, and the motivation of the ... University; Master of Science, University of Reading) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF BUILDING NATIONAL UNIVERSITY OF SINGAPORE 2013 Declaration i Acknowledgements ... using two types of tracer gases have been conducted to evaluate the performance of this novel PV-PE system in conjunction with two different background ventilation systems. Two types of PE: top-PE

Ngày tải lên: 10/09/2015, 09:30

... This chapter consists of three parts, a holistic and critical review of PV, a review of local exhaust ventilation in the field of a ventilation type to reduce the transmission of infected air in ... of personalized air direct to the breathing zone of the occupant. The personal environments module (PEM) consists of two nozzles mounted at the two edges of the desk and allow for changes of ... front of a computer at a distance of 0.15 m from the desk. Both the upright position and leaning forward position of the manikin were performed. The results showed the lowest temperature of the

Ngày tải lên: 10/09/2015, 09:30

... the ability of personalized exhaust (PE) system in preventing the spread of contaminated air exhaled by infected people, another set of CFD simulation was conducted. The dimensions of the simulated ... -80 Pa Figure 4.12 Concentrations of exhaled air at the mouth of Healthy Manikin with a PV flow rate of l/s The inhaled tracer gas concentrations at the mouth of Healthy Manikin when PV air flow ... -80 Pa Figure 4.13 Concentrations of exhaled air at the mouth of Healthy Manikin with a PV flow rate of 12 l/s The inhaled tracer gas concentrations at the mouth of Healthy Manikin when PV air flow

Ngày tải lên: 10/09/2015, 09:31

... *Corresponding authors: h Performance evaluation of space–time–frequency spreading for MIMO OFDM–CDMA systems Haysam Dahman ∗ and Yousef Shayan Department of Electrical Engineering, Concordia ... wireless communications systems. An important advantage of using STF- domain spreading in MIMO OFDM–CDMA is that the maximum number of users supported 11 D. Performance Evaluation for Zero Forcing ... This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Performance evaluation of space-time-frequency...

Ngày tải lên: 18/06/2014, 22:20

... number of users. D. Performance Evaluation for Zero Forcing Receiver In this section, we will calculate probability of bit error for Zero-Forcing receiver (ZF) [18,19] to examine the performance of ... 2011:139 http://asp.eurasipjournals.com/content/2011/1/139 Page 12 of 13 RESEARCH Open Access Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems Haysam Dahman * and Yousef Shayan Abstract In ... for OFDM-CDMA system with 4Tx, 2Rx of the prop osed scheme (solid) and 2D OFDM-C DMA (dotted) in a slow fading frequency-selective environment. S N R dB Number of Users Proposed OFDM-CDMA 2D OFDM-CDMA 0 2 46 8 10...

Ngày tải lên: 20/06/2014, 21:20