https://scholars.lib.ntu.edu.tw/handle/123456789/155287
標題: | Antipodal Paraunitary Matrices and Their Application to OFDM Systems | 作者: | SEE-MAY PHOONG Chang, Kai-Yen |
關鍵字: | Antipodal paraunitary matrices; Filterbanks; OFDM | 公開日期: | 2005 | 卷: | 53 | 期: | 4 | 起(迄)頁: | 1374-1386 | 來源出版物: | IEEE Transactions on Signal Processing | 摘要: | Paraunitary (PU) matrices and filterbanks have played an important role in many applications. This paper studies a special class of PU matrices, called antipodal paraunitary (APU) matrices. APU matrices are PU matrices whose coefficient matrices consist of ±1 only. Several new methods will be introduced for the construction of APU matrices. In particular, a new method based on the butterfly structure that has a low cost implementation is proposed. Moreover, one application of APU matrices in precoded orthogonal frequency division multiplexing (OFDM) systems will be considered. By using an APU precoding matrix, the complexity will be very low, and experiments show that the use of APU matrices can greatly enhance the performance. © 2005 IEEE. |
URI: | http://ntur.lib.ntu.edu.tw//handle/246246/143986 | ISSN: | 1053587X | SDG/關鍵字: | Computational complexity; Computer simulation; Digital filters; Discrete Fourier transforms; Matrix algebra; Monte Carlo methods; Polynomials; Signal receivers; Z transforms; Antipodal paraunitary matrices; Filterbanks; Orthogonal frequency division multiplexing |
顯示於: | 電機工程學系 |
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