Title :
Potential Feedback Control for the Power Control in LTE
Author :
Phan, Dat-Duong ; Moulay, Emmanuel ; Coirault, Patrick ; Launay, Frederic ; Combeau, Pierre
Author_Institution :
LIAS, Ecole Nat. Super. d´Ing. de Poitiers, Poitiers, France
Abstract :
This technical note deals with the study of uplink (from the mobile phone to the base station) transmitted power control in Long Term Evolution (LTE). It provides a nonlinear Potential Feedback Control (PFC) for scalar discrete-time systems with input delays and disturbances by using the Lyapunov theory and the Artstein transform. It is an original approach in which a stabilization problem of a linear scalar system with a constraint on the state space is transformed into a problem of nonlinear stabilization. We use this strategy of stabilization for the uplink transmission power control in LTE.
Keywords :
Long Term Evolution; Lyapunov methods; delays; discrete time systems; feedback; linear systems; nonlinear control systems; power control; stability; state-space methods; Artstein transform; LTE; Lyapunov theory; delays; linear scalar system; long term evolution; nonlinear PFC; nonlinear stabilization; potential feedback control; scalar discrete-time system; state space; uplink transmission power control; Delays; Equations; Interference; Mobile handsets; Power control; Signal to noise ratio; Uplink; Discrete-time systems; LTE; Lyapunov function; Potential feedback control; discrete-time systems; input delay; potential feedback control;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2014.2382154
