Subchannel Power Control in the OFDM System to Improve BER Performance under Multipath Channels(Wireless Communications Issue)
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概要
- 論文の詳細を見る
We propose a subchannel power control scheme in the OFDM system, which transmits data with a variable power level for each subchannel based on the received SNR. The OFDM system, employing the D-QPSK modulation and the proposed subchannel power control with a grouping coefficient equal to 3, gives about 2.3 dB gain in E_b/N_0 comparing with the conventional OFDM system, under the two-ray multipath channel with the mean value of the second-ray's attenuation coefficient equal to 0.25, for the required BER equal to 10^<-5>.
- 社団法人電子情報通信学会の論文
- 2002-05-01
著者
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Kim K
Korea Res. Inst. Of Standards And Sci. Daejeon Kor
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KANG Hongku
the Digital Communication System Laboratory, Department of Information and Communications, Kwang Ju
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HWANG Wooncheol
the Digital Communication System Laboratory, Department of Information and Communications, Kwang Ju
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KIM Kiseon
the Digital Communication System Laboratory, Department of Information and Communications, Kwang Ju
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Kim Kiseon
The Department Of Information And Communications Of The Kwanju Institute Of Science And Technology (
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Kang H
Department Of Information And Communications Kwangju Institute Of Science And Technology(k-jist)
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Hwang Wooncheol
Department Of Information And Communications Kwangju Institute Of Science And Technology(k-jist)
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