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OFDM Wireless LANs: A Theoretical and Practical Guide
book

OFDM Wireless LANs: A Theoretical and Practical Guide

by John Terry, Juha Heiskala
December 2001
Intermediate to advanced content levelIntermediate to advanced
336 pages
8h 42m
English
Sams
Content preview from OFDM Wireless LANs: A Theoretical and Practical Guide

Components of the Radio Frequency Subsystem

The RF subsystem consists of the in-phase and quadrature (IQ) modulator, power amplifier (PA), baseband converter, and spectral filter subsystems. The operations of the RF subsystem, proceeding from left to right in Figure 5.1, are the following. The IQ modulator takes the input data stream and split it into two separate data stream. One data stream Xl multiplies a sinusoidal waveform; the other data stream XQ, a cosinusoidal waveform. These two waveforms are summed together to form a modulated intermediate frequency (IF) carrier. The envelope of the IF carrier, A, is given by

Equation 5.1

Figure 5.1. ...
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Publisher Resources

ISBN: 0672321572Purchase book