... *Corresponding authors: h Performance evaluation of space–time–frequency spreading for MIMOOFDM–CDMA systems Haysam Dahman∗and Yousef ShayanDepartment 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 11D. PerformanceEvaluation for Zero Forcing ... and full text (HTML) versions will be made available soon. Performance evaluationof space-time-frequency spreading for MIMOOFDM-CDMA systems EURASIP Journal on Advances in Signal Processing 2011,2011:139...
... number of users.D. PerformanceEvaluation for Zero Forcing ReceiverIn this section, we will calculate probability of bit errorfor Zero-Forcing receiver (ZF) [18,19] to examine the performance of ... 2011:139http://asp.eurasipjournals.com/content/2011/1/139Page 12 of 13 RESEARCH Open Access Performance evaluationof space-time-frequencyspreading for MIMO OFDM-CDMA systems Haysam Dahman*and Yousef ShayanAbstractIn ... for OFDM-CDMA system with 4Tx, 2Rx of the prop osed scheme (solid) and 2D OFDM-C DMA (dotted) in aslow fading frequency-selective environment.SNRdBNumber of UsersProposed OFDM-CDMA2D OFDM-CDMA0246810...
... 4.5). Finally, the model evaluation ismade by means of stochastic simulation (Section 4.3).4.3. Evaluation. The evaluation is made by means of sim-ulation. The facilites of CPN Tools have been ... using sharpe,” in Proceedings of the 11th Internat ional Conference on Computer Performance Evaluation. Modelling Techniques and Tools, vol. 1786 of Lecture Notes in Computer Science, pp. 345–349, ... contribution of this workwas the development of a computational tool to automatesame steps of the proposed methodology. The tool wasnamed PECES (Performance and Energy Consumption Evaluation of Embedded...
... the animation of both the systems along with the graphs of Displacement Vs. time just below the animation window of each of the suspension system. By comparing the performanceof the passive ... objectives of this project have been achieved. Dynamic model for linear quarter car suspensions systems has been formulated and derived. Only one type of controller is used to test the systemsperformance ... [5] Prof. Dr. Yahaya Md. Sam, “Robust Control of Active Suspension System for A Quarter Car Model”, Thesis from University Teknology Malaysia, December 2006. PerformanceEvaluationof Active...
... [47] COMPARATIVE STUDY ON PERFORMANCEEVALUATION OF MUTUAL FUND SCHEMES OF INDIAN COMPANIES Prof. Kalpesh P Prajapati, Assistant Professor, S.V Institute of Management, Gujarat Technological ... source of data is website of Association of Mutual Funds in India (AMFI). The study period is 1st January 2007 to 31st December, 2011. The results ofperformance measures suggest that most of ... Characteristics & performanceevaluationof selected Mutual Funds in India . 9th Indian Institute of Capital Market Conference. [4] Michael, C. J. (1967). The Performanceof Mutual Funds in...
... to be popular today.Other, extrinsic, types of human evaluations of NLG systems include measuring the impact of different generated texts on task performance (Young, 1999), measuring how much ... 2005 NIST MT evaluation exercise, usedBLEU-4 as the only method of evaluation. BLEUis a precision metric that assesses the quality of atranslation in terms of the proportion of its word n-grams ... and Human Evaluationof NLG Systems Anja BelzNatural Language Technology GroupCMIS, University of BrightonUKA.S.Belz@brighton.ac.ukEhud ReiterDept of Computing ScienceUniversity of AberdeenUKereiter@csd.abdn.ac.ukAbstractWe...
... task-based evaluations of NLG systems over the Internetis a valid alternative to more traditional laboratory-based evaluations. Specifically, we have shownthat an Internet-based evaluationofsystems ... increasedamount of data also makes it possible to comparethe quality of NLG systems across different evalua-tion worlds and users’ language proficiency levels.We believe that this type ofevaluation ... argue thatan evaluation that is based almost exclusively on na-tive speakers in universities leads to overly benignjudgments about the quality of NLG systems. One advantage of the Internet-based...
... average number of reached nodes—it is a sort of approximated indicator of the “depth” of the propagation process. Since the RE can beinterpreted as the ratio between the average number of reached ... approach is extensively described, for the evaluationof D,in Appendix 4, but can be directly re-adapted for the evaluationof RE and TE. In the remainder of thissubsection, we outline the final ... conditions—this is the very idea of IF. The shape of p, as a function of d, is shown in Figure 5, for different values of cand ρs. It can be observed that the PAF of SIF is monotonically increasing...
... is the sum of the fixed time from the grant time of the tagged i-packetto the start of transmission of the i-packets in the next frameand the transmission times of the random number of i-packets ... statistical behavior of the BS grantbuffer of a particular SS is independent from the behavior of those of the other SSs. Therefore, we model the stochasticbehavior of the BS grant buffer of a particular ... range of loads. In this case, theoptimal value of the total amount of real-time capacities canbe determined.In case of a more general QoS requirement (delay con-straint), the optimal set of...
... performanceevaluation process consists of thefollowing steps. Some of the concepts of this and the nextsubsection have been reused and modified from the work in[13]:(1) selection of the evaluation ... modelling for performance evaluationof real-time embedded systems, ” EURASIP Journalon Embedded Systems, 2008.[20] G. Madl, N. Dutt, and S. Abdelwahed, Performance estima-tion of distributed ... Framework for Model-Driven SoC Performance Evaluation and ExplorationThe presented performanceevaluation models are used forearly analysis of data intensive embedded systems. Figure 10presents...
... usingˆd0to generate soft coded bit estimatesˆ˜b in thesoft symbols-to-bits block. These are then provided to the soft-input soft-output (SISO) decoder fromwhich we obtain our first soft decoded bit ... Figure 10 we have shown the performance with higher order modulations. Here, the performance of LDDST compared to DDST is quite similar. Clearly, both DDST based systems improvesthe spectral ... 250 àsOrder of the RRC lter 64RRC roll-o 0.1Symbols per frame 4,500TDMT pilot symbols per frame 450Number of feedback iterations 5No. of subbands in the analysis bank 1,024No. of subbands...
... CIRH performance of the HAP system for different values of D, obtained byincreasing the reuse factor N. It shows that a CIR increase of approximately 2 dB can be achieved with each increment of N ... performance (reuse factor= 3)−30−20−100102030Distance from SPP of HAP (km)−30 −20 −10 0 10 20 30Distance from SPP of HAP (km)46810121416182022Figure 8: CIR performanceof ... of CIRHand CINRH of HAP WiMAXsystem (refuse factor= 3)00.20.40.60.81Pr (CIRHor CINRH<X)4 6 8 10121416182022X (dB)CIRHCINRHFigure 9: CDF of CIR and CINR performance of...