Fast estimation of BER in PAR-limited DMT systems using noise injection method
Farhang-Boroujeny, B. Yan, W. Attallah, S.
Farhang-Boroujeny, B.
Attallah, S.
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Abstract
High peak-to-average power ratio is a major problem that is inherent in all multicarrier communication systems. Clipping the high-peak power samples introduces (extra) clipping noise, which degrades the system performance in terms of bit-error rate (BER). Measuring BER usually requires a very long simulation time, as clipping occurs very rarely. In this letter, we propose a method called clipping noise injection, which allows estimating BER (due to clipping) in discrete multitone-based systems in a fast and quite precise way. Savings of as great as 90% or more are observed in some simulations that are reported in this letter. Higher savings are expected when lower BER cases have to be studied.
Keywords
Bit-error rate (BER), Clipping noise, Discrete multitone (DMT), Fast estimation
Source Title
IEEE Transactions on Communications
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Date
2003-02
DOI
10.1109/TCOMM.2003.809225
Type
Article