TY - GEN
T1 - Efficient power amplification for wireless communication based on single-carrier
AU - Wulich, Dov
AU - Gutman, Igor
PY - 2011/12/1
Y1 - 2011/12/1
N2 - We propose and analyze two strategies for efficient use of linear power amplifiers in single carrier systems. The first strategy maximizes the mutual information for a given limited power supply by applying variable gain pre- amplification to the transmitted signal before it is fed to the power amplifier. The second strategy minimizes the required power supply while maintaining a fixed power output by adjusting the power amplifier's linear dynamic range using adaptive-biasing. Pre- amplification results in an increase of up to 1.4 times in average mutual information regardless of the power amplifier class while the adaptive- biasing results in a decrease of up to 7 dB in the required power supply for class A and up to 3 dB for class B power amplifiers.
AB - We propose and analyze two strategies for efficient use of linear power amplifiers in single carrier systems. The first strategy maximizes the mutual information for a given limited power supply by applying variable gain pre- amplification to the transmitted signal before it is fed to the power amplifier. The second strategy minimizes the required power supply while maintaining a fixed power output by adjusting the power amplifier's linear dynamic range using adaptive-biasing. Pre- amplification results in an increase of up to 1.4 times in average mutual information regardless of the power amplifier class while the adaptive- biasing results in a decrease of up to 7 dB in the required power supply for class A and up to 3 dB for class B power amplifiers.
UR - http://www.scopus.com/inward/record.url?scp=84857218050&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2011.6133727
DO - 10.1109/GLOCOM.2011.6133727
M3 - Conference contribution
AN - SCOPUS:84857218050
SN - 9781424492688
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
T2 - 54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
Y2 - 5 December 2011 through 9 December 2011
ER -