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Power Efficiency in Broadband Wireless Communications
book

Power Efficiency in Broadband Wireless Communications

by Pooria Varahram, Somayeh Mohammady, Borhanuddin Mohd Ali, Nasri Sulaiman
August 2014
Intermediate to advanced content levelIntermediate to advanced
340 pages
8h 49m
English
CRC Press
Content preview from Power Efficiency in Broadband Wireless Communications
242
Power effiCienCy in wireless CommuniCations
V
errP
is the phase difference between the input signal and the output
signal in radians.
V
errP
= R
output
R
input
(7.8)
Alpha and beta is the parameter used to control the amplitude and
phase of the output.
PA
Digital
Predistortion
Block
Input Amplitude
Input Phase
Output Phase
Output Amplitude
Pre-
distorted
Pre-
distorted
Complex
Multiplier
Lookup Table
(LUT) for S
(Amplitude)
Lookup Table
(LUT) for R
(Phase)
Indexing
Adaptation
Block
Output Amplitude (S)
Output Phase (R)
Input
Amplitude
(S)
Input
Phase (R)
Predistorted
Input Phase (R)
Predistorted Input
Amplitude (S)
Update
LUT for R
Update LUT
for S
Figure 7.13 Components ...
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Publisher Resources

ISBN: 9781466595484