Paper Info
Title
Optimal operating point of the power amplifier with respect to the EVM for TV broadcasting applications
Abstract
The high Power Amplifier (PA) dominates the power consumption in DVB transceiver systems and requests focusing the power efficiency improvements on this device; especially when multi-carrier modulations are used which is characterized by high Peak-to-Average Power Ratio (PAPR). In this paper, first, we provide analytical expression of the Error Vector Magnitude (EVM) of the amplified signal when polynomial predistortion and clipping techniques are activated. Secondly, a theoretical analysis of the trade-off between the power amplifier linearity and efficiency is investigated considering the performance of the clipping and predistortion techniques. Therefore, an analytical expression which gives the optimal Input Back-Off (IBO) maximizing the PA efficiency, with respect to an EVM constraint, is provided. It is demonstrated that significant power efficiency improvement can be achieved using our analytical expressions.
Year
DOI
Venue
2016
10.1109/BMSB.2016.7521943
2016 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB)
Keywords
Field
DocType
EVM,multi-carrier modulations,TV broadcasting applications,predistortion,clipping,DVB
Electrical efficiency,Telecommunications,Computer science,Operating point,Linearity,Electronic engineering,Real-time computing,Linear amplifier,Power-added efficiency,Digital Video Broadcasting,Predistortion,Amplifier
Conference
ISSN
ISBN
Citations 
2155-5044
978-1-4673-9045-3
0
PageRank 
References 
Authors
0.34
4
4
Name
Order
Citations
PageRank
Cheaito, A.111.08
Yves Louët211223.96
Matthieu Crussière314539.43
Jean-François Hélard421555.00