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Low-Complexity Estimation Method of Cyclic-Prefix Length for DMT VDSL System
Hui-Chul WON Gi-Hong IM
Publication
IEICE TRANSACTIONS on Communications
Vol.E88-B
No.2
pp.758-761 Publication Date: 2005/02/01 Online ISSN:
DOI: 10.1093/ietcom/e88-b.2.758 Print ISSN: 0916-8516 Type of Manuscript: LETTER Category: Transmission Systems and Transmission Equipment for Communications Keyword: cyclic prefix (CP), discrete multitone (DMT), very high-speed digital subscriber line (VDSL), intersymbol interference (ISI),
Full Text: PDF(317.3KB)>>
Summary:
In this letter, we propose a low-complexity estimation method of cyclic-prefix (CP) length for a discrete multitone (DMT) very high-speed digital subscriber line (VDSL) system. Using the sign bits of the received DMT VDSL signals, the proposed method provides a good estimate of CP length, which is suitable for various channel characteristics. This simple estimation method is consistent with the initialization procedure of T1E1.4 multi-carrier modulation (MCM)-based VDSL Standard. Finally, simulation results with VDSL test loops are presented.
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