Effect of changing symbol rate on equalizer performance for band-limited systems | |
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學年 | 92 |
學期 | 2 |
出版(發表)日期 | 2004-04-01 |
作品名稱 | Effect of changing symbol rate on equalizer performance for band-limited systems |
作品名稱(其他語言) | |
著者 | Liu, Hong-yu; 嚴雨田; Yen, Rainfield Y. |
單位 | 淡江大學電機工程學系 |
出版者 | Wiley-Blackwell |
著錄名稱、卷期、頁數 | International journal of communication systems 17(3), pp.253-267 |
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. |
關鍵字 | |
語言 | en |
ISSN | 1099-1131 |
期刊性質 | 國內 |
收錄於 | |
產學合作 | |
通訊作者 | |
審稿制度 | 否 |
國別 | TWN |
公開徵稿 | |
出版型式 | ,電子版 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/46104 ) |