A novel adaptive bit loading algorithm for BICM-OFDM system

In this paper, we present a bit-loading scheme for coded OFDM systems. In the proposed scheme, the subcarriers with multilevel modulation are decomposed into multiple binary equivalent channels each with an effective bit-level signal-to-noise ratios (SNR) depending only on the symbol-level SNR and t...

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Vydané v:2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC) s. 311 - 315
Hlavní autori: Wang Hao, Yang Hongwen, Tian Jun
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.08.2012
Predmet:
BICM
Bit error rate
Bit Loading
Loading
Measurement
OFDM
Phase shift keying
Signal to noise ratio
ISBN:1457713780, 9781457713781
ISSN:2376-6492
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Popis
Shrnutí:In this paper, we present a bit-loading scheme for coded OFDM systems. In the proposed scheme, the subcarriers with multilevel modulation are decomposed into multiple binary equivalent channels each with an effective bit-level signal-to-noise ratios (SNR) depending only on the symbol-level SNR and the bit position. Thus, the problem of allocating bits among subcarriers has been converted to simply selecting the best binary channels. Simulation results have verified the superior performance to the classical algorithm.
ISBN:1457713780
9781457713781
ISSN:2376-6492
DOI:10.1109/IWCMC.2012.6314222