... criteria of performance), (2) the representation of the agricultural sector (the attributes of performance) and (3) the regulation of agricultural activities (selection and evaluation of policies and ... workers and the area of land in production has to be faster than the pace of growth of the required amount of capital per worker and per unit of land After having taken such a suicidal path for the ... theories, albeit with second-hand and incomplete knowledge of some of them and at the risk of making fools of ourselves To make the life of the reader easier, the text of the first eight chapters...
Ngày tải lên: 11/08/2014, 21:21
... Proof of Lemma 6.2 257 Appendix 6B: Calculation of Weights 257 Appendix 6C: Proof of Lemma 6.3 258 Appendix 6D: Proof of Lemma 6.4 259 Appendix 6E: Proof of Lemma 1.10 259 Appendix 6F: Proof of ... Comparisons of DS-CDMA- and OFDM -Based Systems 400 10.4.1 Performance of DS-CDMA/MISO Systems 401 10.4.2 Performance of OFDMA/MISO Systems 401 10.4.3 Comparisons of DS-CDMA/MISO and OFDMA/MISO Systems ... time-slots and 4, respectively A scenario in which the soft-handoff active set of a data user consists of cells 0, 1, and but not cell A partial taxonomy of TDMA -based MAC protocols Conceptual models of...
Ngày tải lên: 01/06/2014, 07:54
Báo cáo hóa học: " Adaptive selection of antenna grouping and beamforming for MIMO systems" ppt
... when the BPCU is for an IID channel We transmit two data streams of QPSK for the antenna grouping and the eigenmode transmission methods, and one data stream of 16-QAM for the beamforming mode The ... are for an IID channel and the dashed lines are for a highly correlated channel As in Figures and 5, the performance of mode selection is the best By examining Figure and the condition number of ... has slightly worse performance than the A2 algorithm The overall performance of Figure is slightly worse than the performance of Figure However, the relative performance of the compared algorithms...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Vector perturbation based adaptive distributed precoding scheme with limited feedback for CoMP systems" docx
... overhead of ADP compared with that of WLP and MBSFN The number of feedback bits of WLP and ADP is linear with K, and that of MBSFN is independent of K however, the feedback overhead of ADP will ... throughput and the feedback overhead of the proposed ADP scheme are given and compared with that of MBSFN and WLP The number of cooperation cells is two CoMP users are those at the edge of the cell ... optimal value of b The statistics of the optimal value of b are given in Figure The horizontal axis is the value of b, and the vertical axis represents the proportion of that value of b being selected...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: " Research Article Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems" pdf
... Communications and Networking 22 4.3 Extension of the algorithm for RS-ASF CRS-ASF ≥ log2 det IMT + ρ H H H AA H MT (47) Proof of this result and indications for the tightness of the bound are ... capacity for ASF 18 Frobenius-norm -based algorithm In this paragraph we demonstrate the capacity performance of the Frobenius-norm -based algorithm for various schemes of receive ASF in terms of outage ... mathematical formulation of the subarray formation process, provided that we furthermore enforce the following restriction on the entries of A: j = 0, if i ∈ S j , (6) P Theofilakos and A G Kanatas for...
Ngày tải lên: 22/06/2014, 06:20
Báo cáo hóa học: " Research Article Channel Impulse Response Length and Noise Variance Estimation for OFDM Systems with Adaptive Guard Interval" docx
... information of CIR length for both the receiver and the transmitter to adjust the GI length adaptively Moreover, the estimated noise variance can be used for generation of the channel state information ... 7: Structure of an OFDM system with adaptive guard interval (illustration in baseband) STRUCTURE OF AN OFDM SYSTEM WITH ADAPTIVE GUARD INTERVAL Figure shows the structure of an OFDM system with ... σpre consists of a fraction 1/(NK − 1) of a part of channel power excluding the power of the direct path, and the noise variance The selection of the step size determines the accuracy of the estimated...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " A Reconfigurable Spiral Antenna for Adaptive MIMO Systems" docx
... the University of Science and Technology of China, in 1994 and 1997, respectively, and a Ph.D degree in electrical engineering and computer science from the University of California (UCI), Irvine, ... radiate right-hand and left-hand circularly polarized axial beam waves with good axial ratio and gain values covering the design frequency bandwidth of 4.3–5.4 GHz If desired, this bandwidth can ... as a Staff Member and Manager of the Technology Group, IBM, he coordinated and conducted research efforts in technology development of high-performance and scaled-dimension (0.5 and 0.25 µm) A Reconfigurable...
Ngày tải lên: 23/06/2014, 00:20
Báo cáo y học: "Networked Research buffering: a basic mechanism for distributed robustness in complex adaptive systems" pptx
... anecdotal evidence for the prevalence of both local functional redundancy and distributed forms of robustness in biology Degeneracy may be an important causal factor for both of these forms of robustness ... definitions for (and discriminations of ) the concepts of degeneracy, redundancy and partial redundancy; in Appendix we give background materials on degeneracy in biotic and abiotic systems; and in ... complete absence of degeneracy, only one type of molecular species could be responsible for each type of control action, and the removal of that species could not be directly compensated for by others...
Ngày tải lên: 13/08/2014, 16:20
agent-based model selection framework for complex adaptive systems
... context of land-use change models He distinguishes between whole landscape models, distributional models and spatial landscape models While the whole landscape models relate to the change of a single ... 11 Land-use and Land-cover Change 13 Background 2.1 17 Agent -Based Models of Land-use and Land-cover Change 17 viii Models of LUCC ... variable or a set of environmental variables associated to the whole landscape, distributional models track the changes in the distributions of variable on the landscape Spatial landscape models focus...
Ngày tải lên: 13/11/2014, 11:02
Dynamic scheduling techniques for adaptive applications on real time embedded systems
... drastic performance improvement of embedded computing systems The complexity of applications that an embedded platform could handle increases as well Definitions of application execution performance ... energy consumption, and application response time, to the “soft” behaviors of application execution that emphasize on the execution Quality -of- Service (QoS) For instance, the problem of “at which quality ... existing adaptive application models and scheduling techniques that are aware of real-time, energy, application adaptiveness, and infrastructural requirements 2.1 Adaptive Applications Application...
Ngày tải lên: 10/09/2015, 15:52
Design of adaptive and hybrid energy QOS aware heterogeneous multiprocessor scheduling strategies for embedded systems
... an information exchange medium A BSN is an example of such a system wherein the PEs form centers of computation and wireless communication forms the information exchange medium Application software ... First and foremost my supervising Professor, Dr Bharadwaj Veeravalli, for his guidance and valuable inputs throughout my research term His patience and understanding during certain phases of my ... a very high rate of charge lock-up and a large αL , and vice versa A lower value of β also indicates a low rate of recovery of αL β is measured in sec−1 A typical value of β for a lithium ion...
Ngày tải lên: 04/10/2015, 15:44
A Study of Channel Estimation for OFDM Systems and System Capacity for MIMO-OFDM Systems
... personality and diligence, which I will treasure my whole life I also gratefully acknowledge Prof V.O.K Li, Prof G.L Li, Prof Y.C Wu, Prof S.C Chan, Prof T.S Ng and Prof Agnes S.L Lam for their ... analysis of channel estimation for the first M1 OFDM symbols 100 4.4.2 MSE analysis of channel estimation for the last M2 OFDM symbols 103 4.4.3 MSE analysis of channel estimation for one OFDM block ... studies the channel estimation for OFDM systems and system capacity for MIMO-OFDM systems, this chapter briefly introduces the background of OFDM systems and MIMO systems OFDM is an effective technology...
Ngày tải lên: 20/11/2012, 11:28
Free Software tools for embedded systems
... GNU C library (glibc) Designed for performance compliance with standards Best for servers and desktops uClibc Highly compatible, but implemented for small embedded systems with little storage space and RAM Others: diet libc, newlib, klibc ... (building gcc twice: once for gcc + once for compilers that need the C library) Lots of decisions to make (such as C library version and configuration for your platform) Need kernel headers and C library sources ... Only Free Software, of course! SkyEye: http://skyeye.sourceforge.net Emulates several ARM platforms (AT91, Xscale ) and can boot several operating systems (Linux, uClinux, and others) Softgun: http://softgun.sourceforge.net...
Ngày tải lên: 20/10/2013, 00:15
techniques for adaptive control - vance vandoren
... Expert -based adaptive control: Controlsoft’s Intune adaptive and diagnostic software On-demand tuning and adaptive tuning History and milestone literature Adaptive control structure and ... Rancho Cordova, California Tien-Li Chia, Ph.D President, ControlSoft, Cleveland, Ohio Guy A Dumont, Ph.D Professor, Department of Electrical and Computer Engineering, University of British Columbia, ... cleaning of the heat exchanger), it would reduce its own gain again Hundreds of techniques for adaptive control have been developed for a wide variety of academic, military, and industrial applications...
Ngày tải lên: 12/12/2013, 22:42
Tài liệu C Programming for Embedded Systems docx
... liability for damages resulting from the use of the information in this book or for any infringement of the intellectual property rights of third parties that would result from the use of this information ... guaranteed for any particular purpose The publisher does not offer any warranties and does not guarantee the accuracy, adequacy, or completeness of any information herein and is not responsible for ... All example and program code is protected by copyright Intel is a registered trademark of Intel Corporation Microsoft and Windows are trademarks or registered trademarks of Microsoft Corporation...
Ngày tải lên: 22/12/2013, 02:17
Tài liệu An Introduction to Intelligent and Autonomous Control-Chapter 2: A Reference Model Architecture for Intelligent Systems Design pdf
Ngày tải lên: 26/01/2014, 07:20