An Introduction to Orthogonal Frequency Division Multiplex - Ieee.li

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28 Quadrature Error Examples QPSK Constellations A G R E A T E R M E A S U R E O F C O N F I D E N C E www.keithley.com © Copyright 2007-2008 Keithley Instruments, Inc.
29 Modula<strong>to</strong>r Imbalance Examples QPSK Constellations Ideal Excess I Gain Excess Q Gain A G R E A T E R M E A S U R E O F C O N F I D E N C E www.keithley.com Excess I gain and reduced Q gain relative <strong>to</strong> ideal constellation © Copyright 2007-2008 Keithley Instruments, Inc.
Page 1 and 2: 1 A G R E A T E R M E A S U R E O F
Page 3 and 4: Data 3 What is SISO? Single-Input S
Page 5 and 6: 5 A G R E A T E R M E A S U R E O F
Page 7 and 8: 7 Why OFDM? …Resiliency to RF int
Page 9 and 10: 9 Single Carrier - Single Symbol A
Page 11 and 12: 11 802.11a-g WLAN example I Improve
Page 13 and 14: 13 Symbol to Waveform Traditional -
Page 15 and 16: 15 Digital Section (ASIC/ FPGA) Dig
Page 17 and 18: 17 Vector Signal Analyzer Measureme
Page 19 and 20: 19 Introduction to Constellation Di
Page 21 and 22: 21 Q Digital Modulation Overview I
Page 23 and 24: 23 Quadrature Modulator Hardware Ac
Page 25 and 26: RF Input 25 Local Oscillator Mixer
Page 27: 27 Origin Offset Example 16-QAM Con
Page 31 and 32: 31 -1V ISI - Inter Symbol Interfere
Page 33 and 34: A G R E A T E R M E A S U R E O F C
Page 35 and 36: 35 Example: WLAN (802.11a/g) • Mo
Page 37 and 38: 37 A G R E A T E R M E A S U R E O
Page 39 and 40: 39 WiMAX 802.16d/e OFDMA • Worldw
Page 41 and 42: Sub Channel Number 41 0 . . . . . .
Page 43 and 44: 43 Dynamic Symbol Map A G R E A T E
Page 45 and 46: 45 Link Characteristics - Summary H
Page 47 and 48: 47 • This is metropolitan area ne
Page 49 and 50: 49 6.0 4.0 2.0 0.5 Spectrally Effic
Page 51 and 52: 51 TX1 TX2 TX1 TX2 TX3 TX1 TX2 TX3
Page 53 and 54: 53 y = Hx + n y = Receive Vector x
Page 55 and 56: 55 2x2 Measurement Example A G R E
Page 57 and 58: 57 TX1 TX2 TX3 TX4 Beam Forming A G
Page 59 and 60: 59 Typical Types of Beam Forming
Page 61 and 62: 61 Conclusions A G R E A T E R M E
Page 63 and 64: 63 The Long Term Evolution of Wirel
Page 65 and 66: 65 Summary • OFDM and SISO radio

An Introduction to Orthogonal Frequency Division Multiplex - Ieee.li

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