Potential Feedback Control for the Power Control in LTE

Dat-Duong Phan (1, 2) , Emmanuel Moulay (3) , Patrick Coirault (1, 2) , Frédéric Launay (1, 2) , Pierre Combeau (3)

1 LIAS [Poitiers] - Laboratoire d'informatique et d'automatique pour les systèmes [EA 6315]
2 A&S - Automatique et Systèmes
3 XLIM-SIC - SIC

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.

Mots clés: Potential feedback control; Lyapunov function; discrete-time systems; input delay; LTE

Domaines: Automatique / Robotique; Réseaux et télécommunications [cs.NI]

Dat-Duong Phan, Emmanuel Moulay, Patrick Coirault, Frédéric Launay, Pierre Combeau. Potential Feedback Control for the Power Control in LTE. IEEE Transactions on Automatic Control, 2015, 60 (9), pp.2506-2511. ⟨10.1109/TAC.2014.2382154⟩. ⟨hal-01188505⟩