Optimal Pulses Robust to Carrier Frequency Offset for OFDM/QAM Systems

Optimal pulses with minimum ICI power at a given CFO point for OFDM/QAM systems are found analytically. A lower bound of the ICI power is introduced as a measure of the robustness to CFO for a given pulse. Numerical comparison verifies that the optimal pulse is more robust to CFO than previously sug...

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Veröffentlicht in:	IEEE communications letters 2008-03, Vol.12 (3), p.161-163
Hauptverfasser:	Gang Lin, Lundheim, L., Holte, N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Carrier frequencies Digital filters Exact sciences and technology Information, signal and communications theory Intersymbol interference Lower bounds Mathematical analysis Mean square error methods Modulation, demodulation Multiplexing OFDM Offsets Optimization Orthogonal Frequency Division Multiplexing Power measurement Pulse measurements Quadrature amplitude modulation Robustness Signal and communications theory Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Timing Transmission and modulation (techniques and equipments) Transmitters
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Beschreibung
Zusammenfassung:	Optimal pulses with minimum ICI power at a given CFO point for OFDM/QAM systems are found analytically. A lower bound of the ICI power is introduced as a measure of the robustness to CFO for a given pulse. Numerical comparison verifies that the optimal pulse is more robust to CFO than previously suggested pulses at the selected CFO point.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2008.071680