design and performance evaluation of membrane systems

Báo cáo hóa học: " Research Article Design and Performance Evaluation of an Adaptive Resource Management Framework for Distributed Real-Time and Embedded Systems" pptx

Ngày tải lên : 22/06/2014, 00:20

... ﬂexibility (iii) Design of a framework determines its performance and applicability The design of key modules and entities of the resource management framework determines the scalability, and therefore ... middleware, and (2) design- time versus run-time QoS conﬁguration, optimization, analysis, and evaluation of constraints, such as timing, memory, and CPU 2.1 Overview of conventional and QoS-enabled ... Section 5 EMPIRICAL RESULTS AND ANALYSIS This section presents the design and results of experiments that evaluate the performance and scalability of RACE in our prototype of the NASA MMS mission...

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Design and performance evaluation of energy aware DVS based scheduling strategies for hard real time embedded multiprocessor systems

Ngày tải lên : 30/09/2015, 06:05

... the design of fast and eﬃcient static and dynamic energy-aware scheduling algorithms for maximizing the lifetime of an embedded multiprocessor system using DVS-based techniques Speciﬁcally, we design ... sensor nodes P Ei and P Ej is denoted by τij and ξij respectively It is assumed that the time and energy cost of wireless transmission is the same at both the sender and the receiver and no techniques ... homogeneous multiprocessor systems and uniprocessor systems The problem of energyaware scheduling on homogeneous multiprocessor systems [4, 8, 12, 24, 28, 35] is a subset of energy-aware scheduling...

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Analysis, Design and Performance Evaluation of Optical Fiber potx

Ngày tải lên : 06/08/2014, 00:20

... of forward error correction coding (FEC) System capacity (for BER = 10 −12 ) is shown to be 23 Gb/s without coding, and 75 Gb/s with a (255,239) Reed Solomon code The effect of non-rectangular ... spectrumsliced FSK systems using optical preamplifier receivers are shown, for the first time, to perform better in a peak optical power limited environment Performance- optimized spectrum-sliced WDM systems ... receiver sensitivity is investigated for both OOK and FSK transmission, assuming the system (de)multiplexer filters to be N’th order Butterworth bandpass Although narrower filters are recommended...

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báo cáo hóa học:" Research Article A Formal Model for Performance and Energy Evaluation of Embedded Systems" pot

Ngày tải lên : 21/06/2014, 11:20

... automate same steps of the proposed methodology The tool was named PECES (Performance and Energy Consumption Evaluation of Embedded Systems) It receives the annotated source code and the architecture ... 2004 [5] W Ye, N Vijaykrishnan, M Kandemir, and M J Irwin, “The design and use of SimplePower: a cycle-accurate energy estimation tool,” in Proceedings of the 37th Design Automation Conference (DAC ... 4.5) Finally, the model evaluation is made by means of stochastic simulation (Section 4.3) 4.3 Evaluation The evaluation is made by means of simulation The facilites of CPN Tools have been adopted...

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Design and performance analysis of efficient wireless systems

Ngày tải lên : 10/09/2015, 08:25

... DESIGN AND PERFORMANCE ANALYSIS OF EFFICIENT WIRELESS SYSTEMS WANG PEIJIE (M.Sc., National University of Singapore) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF ... number of works examine the performance limits of feedback systems having limited CSI and/ or delay and noise on the feedback channel For example, [16] proposes practical design of power-adaptive systems ... Our design and analysis of the ABEP-based and the BEOP-based power control laws are generalized for both BPSK and quadrature phase shift keying (QPSK) modulations 1.2.2 Receiver Design and Performance...

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Design and performance analysis of MIMO space time block coding systems over general fading channels

Ngày tải lên : 14/09/2015, 14:05

... exact PEP evaluation, thus the results in [42–44] provide limited insight into the structure of STC systems 1.1 MIMO Systems and Space-Time Coding Most of the performance analysis for STC systems ... effects of non-identical channels on the performance of STBC The effect of non-identical channels was ﬁrst investigated in SIMO systems References [54–56] analyze the performance of SIMO systems ... comparison of G2 and the optimum G4 systems with BPSK modulation 4.6 88 91 The normalized ISI of original G4 code matrix (4.39), hand-designed code matrix (4.53) and the...

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Báo cáo khoa học: "Comparing Automatic and Human Evaluation of NLG Systems" potx

Ngày tải lên : 24/03/2014, 03:20

... communicative goal; and that corpus texts are often not of high enough quality to form a realistic test 2.2 Automatic evaluation of generated texts in MT and Summarisation The MT and document summarisation ... (non-repeating column and row entries) experimental design where each combination of date and system is assigned one evaluation Automatic evaluations: We used NIST2 , BLEU , and ROUGE4 to automatically ... 2005 NIST MT evaluation exercise, used BLEU -4 as the only method of evaluation BLEU is a precision metric that assesses the quality of a translation in terms of the proportion of its word ngrams...

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DELIVERING HEALTH EDUCATION VIA THE WEB: DESIGN AND FORMATIVE EVALUATION OF A DISCOURSE-BASED LEARNING ENVIRONMENT pot

Ngày tải lên : 28/03/2014, 21:20

... structure and navigation, readability of text, appropriateness of graphics and icons, clarity and quality of information, suitability of external links, and clarity and perceived motivating and discussion ... formative evaluation of the Web site have a varied teaching background in terms of level and content and are focusing their postgraduate studies on the design, development and evaluation of technology-based ... Web-based and classroom learning environments; the design and development of a prototype Web environment to facilitate these learning activities; and, the formative evaluation of learning activities and...

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Báo cáo hóa học: " Research Article Design and Experimental Evaluation of a Vehicular Network Based on NEMO and MANET" pdf

Ngày tải lên : 21/06/2014, 08:20

... concerning real performances of multhop designs is much larger There are works related to real evaluations of VANET designs [11, 12], and a limited literature for concrete cases of multi-hop transmissions ... supports both NEMO and MANET connectivity In this paper, the focus is on investigating the operation and performance of the simultaneous usage of VANET and NEMO routes An initial set up of a ﬁeld testbed ... development and evaluations,” in Proceedings of the Annual Workshop on Circuits, Systems and Signal Processing, pp 489–494, Veldhoven, The Netherlands, November 2005 [8] T Clausen and P Jacquet,...

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Báo cáo hóa học: " Research Article Nonparametric Interference Suppression Using Cyclic Wiener Filtering: Pulse Shape Design and Performance Evaluation" pptx

Ngày tải lên : 22/06/2014, 06:20

... coordination levels between the narrowband and wideband signals: (1) unknown and known CFOs; and (2) unknown and known cycle frequencies of the wideband signal (i) The case of an unknown CFO: for this case, ... the boundaries of the bandwidth occupied by the wideband signal On the other hand, for zero and a small Δ f , that is, interference lying within the Nyquist bandwidth of the wideband signal, the ... ⊗ h2,c (t) + (8) responses for the wideband and narrowband signals, respectively The transmitted symbols for the wideband and narrowband signals, x1 (l) and x2 (l), are modulated using balanced...

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Báo cáo hóa học: " Research Article Design and Performance Analysis of an Adaptive Receiver for Multicarrier DS-CDMA" doc

Ngày tải lên : 22/06/2014, 19:20

... waveform with unit amplitude and duration τ, ωq and φq are the frequency and random phase of the qth subcarrier, respectively, and c(k) (t) is the spreading sequence of user k, which is given by ... Kondo and B Milstein, Performance of multicarrier DS CDMA systems, ” IEEE Transactions on Communications, vol 44, no 2, pp 238–246, 1996 [15] W Xu and L B Milstein, “On the performance of multicarrier ... synchronous MC-DS-CDMA system and study its performance Assuming that the system consists of K number of users and that all the users employ the same transmitter structure of Figure 1, the received...

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Báo cáo hóa học: " Research Article Nonparametric Interference Suppression Using Cyclic Wiener Filtering: Pulse Shape Design and Performance Evaluation" pdf

Ngày tải lên : 22/06/2014, 19:20

... coordination levels between the narrowband and wideband signals: (1) unknown and known CFOs; and (2) unknown and known cycle frequencies of the wideband signal (i) The case of an unknown CFO: for this case, ... the boundaries of the bandwidth occupied by the wideband signal On the other hand, for zero and a small Δ f , that is, interference lying within the Nyquist bandwidth of the wideband signal, the ... ⊗ h2,c (t) + (8) responses for the wideband and narrowband signals, respectively The transmitted symbols for the wideband and narrowband signals, x1 (l) and x2 (l), are modulated using balanced...

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Design and performance analysis of quadratic form receivers for fading channels

Ngày tải lên : 14/09/2015, 11:19

... eﬀort into the design and performance analysis of QFRs In the following, a literature review of QFRs and some related topics will be given 1.2 Review of Quadratic-Form Receivers and Related Topics ... this dissertation In addition to the performance analysis of QRs and design of GQRs in MIMO systems, we are also interested in the error performance analysis of a general QFR, which takes the general ... GUB1-KL and GLB1-KL on Q(a, b) for the case of b > a 109 Diagram of the derivation of the new generic exponential bounds GUB2-KL and GLB2-KL on Q(a, b) for the case of a > b 112 Diagram of...

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Báo cáo hóa học: " Research Article Design and Performance of Cyclic Delay Diversity in UWB-OFDM Systems" docx

Ngày tải lên : 22/06/2014, 06:20

... Scottland, June 2007 [7] K.-B Png, X Peng, and F Chin, Performance studies of a multi-band OFDM system using a simpliﬁed LDPC code,” in Proceedings of the International Workshop on Ultra-Wideband ... delay of the cth cluster, and τ c,l is the delay of α(c, l) relative to Tc According to (1), the total number of clusters is C + and the total number of channel taps is L + Both cluster arrival and ... Ultra-Wideband Systems (IWUWBS ’04), pp 376–380, Kyoto, Japan, May 2004 [8] T.-H Tan and K.-C Lin, Performance of space-time block coded MB-OFDM UWB systems, ” in Proceedings of the 4th Annual...

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Tài liệu The Design and Performance of a Real-time CORBA Event Service doc

Ngày tải lên : 19/02/2014, 18:20

... the predictability and performance of our realtime systems This section brieﬂy discusses each of the issues and how our systems address the potential problems 7.1 The Cost of Dynamic Binding ... role of a mediator between ibility of tightly coupled software can substantially increase consumers and suppliers The Event Channel manages object the effort and cost of integrating new and improved ... demultiplexing; framing and error-handling; parameter marshalling and demarshalling; and operation dis- software by allowing decoupled suppliers and consumers, asynchronous event delivery, and distributed...

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Báo cáo khoa học: "Quantitative and Qualitative Evaluation of Darpa Communicator Spoken Dialogue Systems" pdf

Ngày tải lên : 31/03/2014, 04:20

... al., 2001) Each dialogue consists of a recording, a logﬁle consistent with the standard, transcriptions and recordings of all user utterances, and the output of a web-based user survey Metrics ... are apologies for misunderstanding (CREJECT), acknowledgements of user requests to start over (SOVER) and acknowledgments of user corrections of the system’s understanding (ACOR) We believe that ... application of a dialogue act tagging scheme to the task of evaluating and comparing dialogue systems Section describes the corpus Section describes the dialogue act tagging scheme we developed and applied...

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design and performance of 3g wireless networks and wireless lans

Ngày tải lên : 01/06/2014, 00:46

... Development History and Landscape (2) Design Architecture and Systems (3) Implementation Issues and Challenges (4) Use and Impact (5) Users and Usability (6) Future Trends of Digital Libraries ... University of Waikato, New Zealand Stefan J Boddie, University of Waikato, New Zealand Ian H Witten, University of Waikato, New Zealand Section IV: Use and Impact Chapter XI Digital Libraries and Society: ... helping designers/developers to better understand users, uses and usability of deployed systems like the eLibraryHub, to address the dilemma of Carroll’s task-artifact cycle of changing user needs and...

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Báo cáo sinh học: " Performance evaluation of space-time-frequency spreading for MIMO OFDM-CDMA systems" ppt

Ngày tải lên : 18/06/2014, 22:20

... Performance evaluation of space–time–frequency spreading for MIMO OFDM–CDMA systems Haysam Dahman∗ and Yousef Shayan Department of Electrical Engineering, Concordia ... F-distribution random variable (ratio between two chi-squared random variables) where a = Nt Nc and b = M − degrees of freedom, and χ2 is chi-squared random variable with Nt Nc degrees of freedom ... (MIMO) systems; orthogonal frequency-division multiplexing (OFDM); 4th generation (4G) Introduction Modern broadband wireless systems must support multimedia services of a wide range of data...

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