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Communication Dans Un Congrès Année : 2009

Mean BER minimization loading algorithm for linear precoded OFDM

Résumé

The problem of minimization of mean bit error rate (BER) of a linear precoded orthogonal frequency division multiplexing ({LP-OFDM}) system is considered. The discrete bit loading algorithms are proposed, which minimize the mean BER of the system for a target bit rate under a peak power constraint. The results are shown for a power line communication system using a well-known multipath channel model. The other, more common, robustness optimization problem is the margin maximization. The obtained results are compared with those of the margin maximization for both {OFDM} and {LP-OFDM} schemes. It is shown that the proposed {LP-OFDM} allocation performs better than the previously published algorithms for poor SNR. Moreover, it is observed that the {LP-OFDM} allocations have lower computational complexity than the {OFDM} allocations.
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Dates et versions

hal-00421651 , version 1 (18-09-2014)

Identifiants

Citer

Fahad Syed Muhammad, Antoine Stephan, Jean-Yves Baudais, Jean-François Hélard. Mean BER minimization loading algorithm for linear precoded OFDM. IEEE Sarnoff Symposium, Mar 2009, Nassau Inn in Princeton, United States. pp.1-5, ⟨10.1109/SARNOF.2009.4850349⟩. ⟨hal-00421651⟩
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