https://scholars.lib.ntu.edu.tw/handle/123456789/318156
標題: | Grouped Signed Power-of-Two Algorithms for Low-Complexity Adaptive Equalization | 作者: | K. H. Chen C. N. Chen TZI-DAR CHIUEH |
關鍵字: | Adaptive algorithms; adaptive filters; low circuit complexity; power-of-two (PT) | 公開日期: | 十二月-2005 | 卷: | 52 | 期: | 12 | 起(迄)頁: | 816-820 | 來源出版物: | IEEE Transactions on Circuits and Systems II: Express Briefs | 摘要: | With increasing demand for higher data rate, modern communication systems have grown more complex. Equalization has become more and more important as it is effective in mitigating the multipath fading often occurred in high-data-rate communication systems. However, the implementation complexity of adaptive equalizers is usually too high for mobile communication applications. In this paper, a novel adaptive equalization algorithm and its low-complexity architecture are proposed. This algorithm employs a new grouped signed power-of-two (GSPT) number representation. The GSPT algorithm and several enhanced versions are simulated as adaptive equalizers in a phase-shift keying communication receiver for several practical channels and the GSPT-based equalizers perform as well as the least mean square (LMS) equalizer. Moreover, for comparison, two GSPT-based equalizers and two other equalizers are implemented in field-programmable gate arrays. The GSPT-based equalizers require only about 25%-30% of the hardware resources needed in the LMS equalizer. Also the GSPT-based equalizers are more than twice as fast as the LMS equalizer. © 2005, IEEE |
URI: | http://scholars.lib.ntu.edu.tw/handle/123456789/318156 https://www.scopus.com/inward/record.uri?eid=2-s2.0-30344445061&doi=10.1109%2fTCSII.2005.853895&partnerID=40&md5=7d8e7e7b8b382c4c9d3b310bcc9b3879 |
ISSN: | 15497747 | DOI: | 10.1109/TCSII.2005.853895 | SDG/關鍵字: | Adaptive algorithms; Communication channels (information theory); Computational complexity; Computer simulation; Field programmable gate arrays; Mobile telecommunication systems; Quadrature phase shift keying; Signal receivers; Least mean square (LMS) equalizers; Low circuit complexity; Power-of-two (PT); Digital filters |
顯示於: | 電機工程學系 |
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