Application of Wavelet Packet Modulation to Mobile Communication(<Special Section>Wide Band Systems)
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概要
- 論文の詳細を見る
Wavelet packet modulation (WPM) using the discrete wavelet transform is a multiplexing transmission method in which data is assigned to wavelet subbands having different time and frequency resolutions. The WPM keeps data transmission throughput even in tone and impulse interference environments that cannot be achieved with conventional multiplexing methods such as TDM (Time division multiplexing) or OFDM (Orthogonal frequency division multiplexing). In this paper, we propose an effective multicarrier transmission method of WPM for wireless mobile communications. First, the transmission characteristics of WPM in fading environments are minutely investigated. Then, taking the advantage of the WPM and the OFDM that has an equalizing technique in multipath fading environments, we propose a multimode transmission method using them. The adaptive transmission in those fading and interference environments is achieved by using the multimode transmission. Their transmission performances are evaluated by computer simulations.
- 社団法人電子情報通信学会の論文
- 2004-10-01
著者
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Okamoto E
Institute Of Information Sciences And Electronics University Of Tsukuba
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IKEGAMI Tetsushi
Graduate School of Science and Engineering, Meiji University
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Ikegami Tetsushi
Department Of Electronics And Bioinformatics School Of Science And Technology Meiji University
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Iwanami Y
Department Of Computer Science And Engineering Nagoya Institute Of Technology
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Iwanami Yasunori
Department Of Computer Science And Engineering Graduate School Of Engineering Nagoya Institute Of Te
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Iwanami Yasunori
The Department Of Electrical And Computer Engineering Nagoya Institute Of Technology
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Iwanami Yasunori
The Author Is With The Department Of Electrical And Computer Engineering Nagoya Institute Of Technol
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Okamoto Eiji
Department Of Computer Science And Engineering Graduate School Of Engineering Nagoya Institute Of Te
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Okamoto Eiji
Department Of Computer Science And Engineering Nagoya Institute Of Technology
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