To access the full text documents, please follow this link:

Multiple lookup table predistortion for adaptive modulation
Gilabert Pinal, Pere Lluís; Bertran Albertí, Eduardo; Montoro López, Gabriel
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. CMC - Control, Monitorització i Comunicacions
This paper presents a multiple LUT digital adaptive predistorter based on a Hammerstein model that uses the return channel to feed back information from the receiver, concretely the bit error rate (BER), in order to train and later adapt the specific LUT gains that permit always operating at the best back-off level. This new predistorter architecture is aimed at coping with modern communication standards that use adaptive modulation (such as IEEE 802.11 or IEEE 802.16) and therefore continuously searching the best linear amplification to maximize power efficiency at the time that a certain quality of service (BER) in reception is guaranteed. Simulations provided will show the advantages of this multi-LUT configuration, where in front of different channel conditions, linear and efficient amplification (minimum back-off) is achieved at the time that a certain level of BER at reception is ensured. Index terms – Lookup tables (LUT), digital adaptive predistortion, Hammerstein models, adaptive modulation systems, peak to average power ratio (PAPR), bit error rate (BER).
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Processament del senyal
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Protocols de comunicació
Modulation (Electronics)
Electric distortion
IEEE 802.11 (Standard)
IEEE 802.16 (Standard)
Adaptive modulation
Sistemes adaptatius
IEEE 802.11 (Protocol)
Processament del senyal adaptatiu
IEEE 802.16 (Protocol)
Institute of Electrical and Electronics Engineers (IEEE)

Show full item record

Related documents

Other documents of the same author

Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Vizarreta Paz, Pedro Pablo; Bertran Albertí, Eduardo
Gilabert Pinal, Pere Lluís; García, José Angel; de Mingo, Jesús; Montoro López, Gabriel; Cabria, Lorena; Marante, Reinel; García, Paloma; Sánchez, César; Bertran Albertí, Eduardo
Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi; Bertran Albertí, Eduardo
Silveira, Daniel D.; Gilabert Pinal, Pere Lluís; Lavrador, P.M.; Pedro, J.C.; Gadringer, Michael E.; Montoro López, Gabriel; Bertran Albertí, Eduardo; Magerl, G.
Gilabert Pinal, Pere Lluís; Cabria, Lorena; García, José Angel; Montoro López, Gabriel; Bertran Albertí, Eduardo