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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| Vydáno v: | 2012 8th International Wireless Communications and Mobile Computing Conference (IWCMC) s. 311 - 315 |
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| Hlavní autoři: | , , |
| Médium: | Konferenční příspěvek |
| Jazyk: | angličtina |
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IEEE
01.08.2012
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| ISBN: | 1457713780, 9781457713781 |
| ISSN: | 2376-6492 |
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| Abstract | 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. |
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| AbstractList | 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. |
| Author | Yang Hongwen Tian Jun Wang Hao |
| Author_xml | – sequence: 1 surname: Wang Hao fullname: Wang Hao email: wangh@cn.fujitsu.com organization: Commun. Technol. Lab., Fujitsu R&D Center Co., Ltd., Beijing, China – sequence: 2 surname: Yang Hongwen fullname: Yang Hongwen email: yanghong@bupt.edu.cn organization: Sch. of Inf. & Commun. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China – sequence: 3 surname: Tian Jun fullname: Tian Jun email: tianjun@cn.fujitsu.com organization: Commun. Technol. Lab., Fujitsu R&D Center Co., Ltd., Beijing, China |
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| Snippet | 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... |
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| StartPage | 311 |
| SubjectTerms | BICM Bit error rate Bit Loading Loading Measurement OFDM Phase shift keying Signal to noise ratio |
| Title | A novel adaptive bit loading algorithm for BICM-OFDM system |
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