http://scholars.ntou.edu.tw/handle/123456789/4808
Title: | Performance comparison of HSDPA downlink equalizers | Authors: | Chi-Min Li Jia-Chyi Wu Jia-Ching Huang Shao-Min Wen I-Tseng Tang |
Keywords: | DMI;Conjugate gradient;FFT-circulant;Expand-truncate;Tapering | Issue Date: | 3-Apr-2009 | Journal Volume: | 63 | Journal Issue: | 4 | Start page/Pages: | 304-310 | Source: | Aeu-International Journal of Electronics and Communications | Abstract: | To restore the orthogonality of the spreading code, an equalizer is adopted at the receiving site for a HSDPA system. In this paper, BER performance and complexity analysis of various equalizers are compared under different outdoor channels. Results show that with tapering technique, the fast FFT-circulant and Expand-truncate equalizers can ease the condition number problem at a high SNR multipath channel. Simulations also show that the CG method has a satisfactory BER improvement. However, its performance depends notably on the number of iterations. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/4808 | ISSN: | 1434-8411 | DOI: | 10.1016/j.aeue.2008.01.007 |
Appears in Collections: | 通訊與導航工程學系 |
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