orthogonal frequency division multiplexing a multicarrier modulation scheme

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Ngày tải lên: 22/06/2014, 19:20

... six-path fading channel, and the channel matrix is normalized such that the average channel gain for each transmitted symbol be equal to unity. The fading coeffi- cients for each path are modeled as ... for a detailed and quantitative analysis of the performance gain that can be achieved by a widely linear transceiver. Figure 5 shows the BER perform ance comparison between the conventional and ... Access Frequency- domain equalization for OFDMA-based multiuser MIMO systems with improper modulation schemes Pei Xiao 1* , Zihuai Lin 2,5 , Anthony Fagan 3 , Colin Cowan 4 , Branka Vucetic 2 and Yi Wu 5 Abstract In...

Ngày tải lên: 20/06/2014, 22:20

... modulated pulses and proposed a multicar- rier transmission scheme on hexagonal lattice named as hexagonal multicarrier modulation (HMM) by regarding signal transmission as tiling of the TF plane. ... optimally combat the impact of the propagation channels, the lattice parameters and the pulse shape of modulation waveform are jointly optimized to adapt to the channel scattering function. EURASIP ... channel spread factor on SINR for hexagonal multicarrier system. channel spread factor on the performance of SINR in hexag- onal multicarrier modulation systems are further discussed. The exact...

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Ngày tải lên: 07/08/2014, 06:20

... perhaps 80%. * ATM became a much more important transport class of data than STM. * Dynamic rate adaptationÐthe ability to change data rates as line conditions (mainly crosstalk) changeÐbecame ... NETWORK MANAGEMENT AND MANAGEMENT INFORMATION BUSSES All three ADSL standards and recommendations (T1.413 and G.992.1 and.2) deđne physical layer management capabilities. These include a parameter 6 The ... was a rumor for a while 3 that in recognition of our contribution they would change their name to California Instruments, but alas, it was Amati's name that changed: AmaTI, then Ama TI, and...

Ngày tải lên: 19/10/2013, 11:15

... (wavelength) at each node along a particular configuration. Each CWDM device is packaged into the VAM platform for seamless integration into fiber panels, distribution frames or cross-connect frame systems, ... requirements without adding additional fiber • Enables out-of-band testing—simply dedicate a separate wavelength for testing and monitoring ã Installs easilyand maintenance is just as simple The ... Solutions, part of the ADC’s Value-Added Module (VAM) family, add flexibility and functionality to the optical transport system. CWDM modules separate light, or wavelengths, allowing multiple signals...

Ngày tải lên: 21/12/2013, 07:17

... ExampleA:CatalognumberCWFMT-2LLBE0CY1000wascreatedfrompage23intheVAMcatalog#101663AE: ã Thiscatalognumberexamplewouldhaveacommonportfortheincomingsignalandfourchannels 1530 nm, 1510nm,1490nmand1470nm.Itwouldalsohavea1310upgradeportforlegacy1310nmsystems. Common in in out Example: ... Division Multiplexing CWDM VAM Module Ordering Guide and Information Application #1: Ordering a MicroVAM CWDM Module ã ExampleA:Onecommonportwithfourchannelsanda1310nmupgradeport. ã ExampleA:CatalognumberCWFMT-2LLBE0CY1000wascreatedfrompage23intheVAMcatalog#101663AE: ... VMW UsedwithADC8"FCMandindustry- standard optical distribution frames WideVAM chassis Available Ports: ã 18Front ã 12Rear MicroVAM FMT UsedwithFMT2RUandNG3 đ MicroVAM chassis Available Ports: ã 6FrontOnly(8LC) ã 3rear(NGFonly) LGX đ ...

Ngày tải lên: 17/01/2014, 11:20

... specific brain areas in tremor generation, cross-spectral analysis has also been applied between EMG data, electroencephalographic signals (EEG), neuronal discharges in deep brain nuclei, magne- toencephalography ... tremor Tool Parameter analyzed Clinical scales Clinical scores of disability Videos Clinical characterization of tremor Quantification of drawings Evaluation of tremor in 2 dimensions Surface and needle ... within the basal ganglia system, especially the pallidum and the subthalamic nucleus, but are mainly synchronized by cortical activity via the striatal inputs. There is an abnormal coupling between...

Ngày tải lên: 18/06/2014, 15:20

... be physically measured or derived from architectural draw- ings. A patient table captures vital information about the patient, namely, personal data such as name, age, sex, contact information, and ... which was programmed in PERL for simplicity of data management. Unlike conventional implementations that rely on a static graph, our approach uses a dynamically changing graph. Recall that there ... partici- pants are necessary to comprehensively characterize patient behaviors and potential barriers, including, for example, auditory and visual distractions, nonstationary landmarks, and crowded spaces....

Ngày tải lên: 19/06/2014, 10:20

... is a general-purpose tool that is applicable to many problems faced in high-velocity hydraulic channels, notably, in the calculation of the ultimate water surface height around bridges, channel ... as well to complex aerodynamic tlow fields containing shocks. Basic Equations The basic equations that are addressed are the 2-D shallow-water equations given as: Chapter 1 Introduction ... geometries, analytic and flume results are compared with approaches for shock-capturing and shock detection. A trigger mechanism that turns on the capture schemes in the vicinity of shocks and the...

Ngày tải lên: 20/06/2014, 17:20

... linearized system with the Jacobian matrix A as a constant, the nonconservative shallow-water equations may be written as where and the subscript 0 indicates a constant value. We may select ... initially constant and supercritical; then the lower boundary is shut so that a wall of water is formed that propagates upstream. This speed can be determined analytically, and a comparison ... data, for which discrepancy will be due to the hydrostatic assumption made in the shallow- water equations. Instead we have a direct way of evaluating the numerical scheme alone. As spatial...

Ngày tải lên: 20/06/2014, 17:20

... speed at AX = 0.4 m so there was no need to go to smaller grid spacing. Values of C, less than 1 appear to lag the analytic shock and Cs greater than 1 leads the analytic shock. ... sec and the flume is 5.65 to 5.8 sec. With % set at 1.5 the time of arrival is late by about 0.2 and 0.15 sec at stations 6 and 8, respectively. The flume at stations 6 and 8 has a earlier ... constructed of Plexiglas and simulates a dam break through a horseshoe bend. This is a more general comparison than Case 1. Here the problem is truly 2-D and we now are comparing to hydraulic flume...

Ngày tải lên: 20/06/2014, 17:20