Two Low Complexity Receiver Structures for Down-Link OFDMA Systems(Wireless Communication Technologies)
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概要
- 論文の詳細を見る
This letter describes two low complexity receiver structures over a multi-broadcast channel of an orthogonal frequency division multiple access (OFDMA) multi-user system. The first is a one-group occupied receiver structure, whose complexity is much lower than that of a conventional OFDMA receiver structure. The other one, a multi-group occupied receiver structure, exploits multiple groups for one user, by which users' down-link data rate can be adaptively controlled by a base station (BS). Unlike unchangeable complexity of an OFDMA receiver structure that performs full-size of a fast Fourier transform (FFT) operation although only a few subcarriers are taken, its complexity linearly increases with the number of occupied subcarrier groups. The proposed receiver structures can meet the possible high-rate demand in the down-link and will become one of the strong candidates in next generation mobile communication systems.
- 社団法人電子情報通信学会の論文
- 2006-08-01
著者
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Wang Junyi
Graduate School Of Science And Engineering Tokyo Institute Of Technology
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ARAKI Kiyomichi
Graduate School of Science and Engineering, Tokyo Institute of Technology
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Araki Kiyomichi
Graduate School Of Engineering Tokyo Institute Of Technology
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Wang Junyi
Graduate School Of Science And Engineering Tokyo Institue Of Technology
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