Effect of changing symbol rate on equalizer performance for band-limited systems

doi:10.1002/dac.641

淡江大學機構典藏 > 工學院 > 電機工程學系暨研究所 > 期刊論文 > Item 987654321/46104

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題名:	Effect of changing symbol rate on equalizer performance for band-limited systems
作者:	Liu, Hong-yu;嚴雨田;Yen, Rainfield Y.
貢獻者:	淡江大學電機工程學系
日期:	2004-04-01
上傳時間:	2010-03-26 20:57:33 (UTC+8)
出版者:	Wiley-Blackwell
摘要:	In this work, the effect of changing symbol rate (or equivalently, symbol rate) on the equalizer performance for M-ary PAM systems is investigated. We keep increasing the symbol rate (or equivalently, keep decreasing the symbol period) until a limit is reached. An effort is made to find this limit. In other words, we are investigating the possibility of increasing the symbol rate beyond the usual Nyquist rate. Since incessantly increasing the symbol rate will eventually produce channel spectrum null (almost null) which will render difficulties for equalization, decision-feedback equalization combined with fractionally spaced sampling is used to overcome the difficulties. For a given channel bandwidth and a prescribed error probability, optimum symbol rates vs SNR are found so as to achieve maximum bit rates. Explanations are given for the resultant phenomena both analytically as well as by computer simulations. A theoretical channel model and a realistic twisted pair channel are used for demonstration. Important analytical expressions are given along with computer simulations to quantify performance results. Copyright © 2004 John Wiley & Sons, Ltd.
關聯:	International journal of communication systems 17(3), pp.253-267
DOI:	10.1002/dac.641
顯示於類別:	[電機工程學系暨研究所] 期刊論文

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