標題: An eigren-based TEQ design for VDSL systems
作者: Lin, Yuan-Pei
Liang, Li-Han
Chung, Pei-Ju
Phoong, See-May
電信工程研究所
Institute of Communications Engineering
關鍵字: discrete multitone (DMT);eigen approach;frequency-based singal-to-interference ratio (SIR);multicarrier;semiblind;time-domain equalizer (TEQ);VDSL
公開日期: 1-一月-2007
摘要: In this paper, we propose an eigen-based semiblind time-domain equalizer (TEQ) design method for VDSL systems. We exploit the fact that the VDSL system is frequency-division duplexing and maximize signal-to-interference ratio in the frequency domain. Unlike earlier eigen-based TEQ designs, the proposed method does not require the channel impulse response nor channel noise statistics. Using properties of the training symbols in VDSL initialization, the TEQ can be obtained by computing an eigenvector of a positive definite matrix that depends only on the averaged received VDSL symbols. The proposed method is referred to as semiblind, as properties of the training symbols are used but the channel impulse response is not known. Examples will be given to demonstrate that the proposed TEQ design method can effectively shorten the channel impulse response and achieve very good bit rates with only a small number of training symbols.
URI: http://dx.doi.org/10.1109/TSP.2006.882116
http://hdl.handle.net/11536/11382
ISSN: 1053-587X
DOI: 10.1109/TSP.2006.882116
期刊: IEEE TRANSACTIONS ON SIGNAL PROCESSING
Volume: 55
Issue: 1
起始頁: 290
結束頁: 298
顯示於類別:期刊論文


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