... approachthe optimal BER performance given by the MFB. More-over, for large N, the proposed system can ever outper-form the theoretical QPSK BER performance. Becausethe proposed system can acquire ... technique for multi-carrierCDMA (MC-CDMA) systems. In the literature, conven-tional MC-CDMA systems, such as the Walsh-Hada-mard (WH) MC-CDMA system, experience limiteduplink performance because ... canenhance system 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...
... Q-OFDMA systemswith smaller P have better BER performance; while with SNRincreasing, Q-OFDMA systems with larger P will becomesuperior. The exact SNR point where one system starts tooutperform ... square error (MMSE) equalizeris used, for BPSK modulated signals, Q-OFDMA system isalways better than OFDMA system with ZF equalizer (for conventional OFDMA systems, ZF is already the maximumlikelihood ... improve the performance of Q-OFDMA systems by suppressing the noise enhancementeffect. While for general OFDMA systems, it is known thatMMSE equalizer almost has the same performance as ZFequalizer.Figure...
... classesRiData rate for packet ipiTransmitted power for packet iB BandwidthGiLink gain for packet iaiArray response vector for packet iλjArrival rate for class jμjDeparture rate for class ... but are hard to eval-uate for the case of multiple antenna systems. This motivatesan approximated power control feasibility condition (PCFC)proposed for admission control of a multiple antenna ... overall system throughput. Inthis paper, we propose a cross-layer AC policy combinedwith an ARQ-based ROP algorithm for a CDMA beamform-ing system. Both optimal and suboptimal admission control policies...
... Controllers✲❄❄✲◗◗◗◗◗◗◗◗◗◗◗◗◗◗sController design Model reductionController design Controller reductionDirect design High-orderplantHigh-ordercontrollerLow-orderplantLow-ordercontrollerFig. 7.1. Diagram fordesign ... system though the original open-loop system is stable. In this section, control- system stabilities and stabilising controllers for a given controlsystem will be dis-cussed.When a dynamic system ... of Designed Controllers 22910.7 Controller-order Reduction . 23710.8 Design of Discrete-time Controller . . . 23910.9 NonlinearSystem Simulation . . . 24410.10Conclusions 24711 Robust Control...
... evaluate the control law at a singlepoint—an operation requiring no memory or state, and, for the signum nonlinearities we employ, only requiring simplefeedforward functions, for example, (6).We ... the system. Vectorfield design has proved to be a useful tool in diverse contextswhere a dynamical systems formulation of the problem isnatural, including computer graphics [20] and the design ... autonomous agent design, ” Robotics and AutonomousSystems, vol. 6, no. 1-2, pp. 169–186, 1990.[11] M. W. Tilden, “Adaptive robotic nervous systems and control circuits therefor,” US patent no....
... follows:Chapter 2 Robust Transceiver Designfor AF MIMO Relay Systems: In thischapter, the problem of robust linear relay precoder and destination equalizer design for a dual-hop AF MIMO relay system, ... closed-form solution is the optimal solution.Chapter 3 Robust Transceiver Designfor AF MIMO-OFDM Relay Sys-tems: In this chapter, joint design of linear relay precoder and destinationequalizer for ... benefits of MIMO systems, transceiver designfor MIMO systemsis of great meaning and has been extensively studied [15–17, 19, 21, 22]. Propertransceiver design can greatly improve the performance of...
... Phase 5: Control 302.8 Six Sigma Goes Upstream DesignFor Six Sigma 302.9 Summary 313. Introduction to Service Designfor Six Sigma (DFSS) 333.1 Introduction 333.2 Why Use Service Designfor ... (FMEA)development Designfor serviceabilitySimulation/optimization Design scorecard4. Preliminary designDesign parameters with Design mapping (process and detailed specification functional mappings) Design ... 34214.4.1 System Entities 34214.4.2 System State 34314.4.3 State Variables 34314.4.4 System Events 34414.4.5 System Activities 34514.4.6 System Resources 34614.4.7 System Delay 34814.4.8 System...
... conceptual designfor a system. Functional data requirements When iterating through the conceptual designfor a solution, it is important to understand how data is used in the current system and ... Using a Conceptual Design for Data Requirements Module 3: Using a Conceptual Designfor Data Requirements 53 Characteristics of Data Requirements "Required for design "Explicit"Hidden ... prepares you for the next modules. Module 3: Using a Conceptual Designfor Data Requirements 49 Gathering Information "Identify necessary information"Identify sources for required...