A Study on Controlling Transmission Power of Carriers of OFDM Signal Combined with Data Symbol Spreading in Frequency Domain (Communication Theory and Signals)
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概要
- 論文の詳細を見る
We have already proposed a carrier power control scheme of OFDM that makes it possible to improve the bit error rate characteristic [4]. However, the data on the lost carriers by the severe fading or large additive noise can't be recovered by only this power control scheme. In this paper, a method of transmission power control of OFDM carriers combined with data spreading scheme in the frequency domain is proposed. In the proposed system, transmission power of each carrier is controlled so as to maximize the average signal to noise ratio of the data symbols after de-spreading the signals from DFT. As the results of computer simulations, it is confirmed that the proposed system can improve the bit error rate characteristics under multi-path channel.
- 社団法人電子情報通信学会の論文
- 2003-08-01
著者
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Aghvami Hamid
Centre for Telecommunications Research King's College London
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Itami Makoto
Department of Applied Electronics, Science University of Tokyo
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Itami Makoto
Department Of Applied Electronics At Tokyo University Of Science
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Itami Makoto
Department Of Applied Electronics Tokyo University Of Science
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NISHIYAMA Tomohiro
Department of Applied Electronics, Tokyo University of Science
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SHIRAI Tatsufumi
Department of Applied Electronics, Tokyo University of Science
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ITOH Koji
Centre for Telecommunications Research, King's College London
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Aghvami Hamid
Centre For Telecommunications Research King's College London
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Aghvami Hamid
Centre For Telecommunication Research King's College London
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Shirai Tatsufumi
Department Of Applied Electronics Tokyo University Of Science
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Nishiyama Tomohiro
Department Of Applied Chemistry
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Nishiyama Tomohiro
Department Of Applied Electronics Tokyo University Of Science
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Itoh Koji
Centre For Telecommunications Research King's College London
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