Title
Closed Loop Power Control Using Third Order Quadratic Approximator.
Abstract
In this paper we introduce a novel bit error rate (BER) feedback transmit power control (TPC) system using a first-time third order quadratic approximation of the power–time curve. This approximation improves the power efficiency of a dual-rate TPC algorithm in terms of reduced total transmit power by smoothing transmit power transients during adaptive iterations. We show that the third order approximator outperforms linear and second order approximators in terms of transmit power savings, sensitivities, error magnitude, and better tracking performance in following reference desired power curves. For the approximator, we determine operational bounds for stability, and demonstrate algorithm behavior using critical valued inputs. In addition we demonstrate value in using a dynamic, rather than static, performance benchmark for quality of service approximation (obtained used scaled maximum acceptable BER), and provide heuristic estimates for the input parameters for the dynamic benchmark.
Year
DOI
Venue
2014
10.1007/s10776-014-0236-x
IJWIN
Keywords
Field
DocType
Cognitive radio, Transmit power control, Interference avoidance, Quadratic approximator, Power usage efficiency
Electrical efficiency,Heuristic,Transmitter power output,Control theory,Computer science,Power control,Third order,Quadratic equation,Smoothing,Bit error rate
Journal
Volume
Issue
ISSN
21
2
1572-8129
Citations 
PageRank 
References 
0
0.34
18
Authors
5
Name
Order
Citations
PageRank
André Mayers18914.05
Patrick Benavidez24811.46
G. V. S. Raju3313.69
David Akopian45714.25
Mo Jamshidi528952.89