|Table of Contents|

Multicarrier Modulation Based on Dual-Tree Complex Wavelet Transform Applied in DVB-T(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2010年02期
Page:
38-42
Research Field:
物理学
Publishing date:

Info

Title:
Multicarrier Modulation Based on Dual-Tree Complex Wavelet Transform Applied in DVB-T
Author(s):
Wu You1; Yin Kuixi1; Zhao Hua1; Wu Yong2
1.School of Physics and Technology,Nanjing Normal University,Nanjing 210046,China 2. School ofG eography S cien ce, Nan jing Norma lU n ivers ity, Nan jing 210046, China
Keywords:
dua l tree com plex w avelet transform;  w ave let d iv ision m ultiplex;  mu lticarr ier modu lation;  DVB
PACS:
TN943
DOI:
-
Abstract:
Dual Tree Comp lexW ave let Transfo rm ( DTCWT) replaces DFT in OWDM app lied in DVB system. In DVB?? T, Orthogonal Comp lexW ave let Div is ionM u ltiplex ( OCWDM ) is simu lated in gauss channe,l flat fading channe l and frequency selectiv e channe.l The resu lts show tha tOCWDM has much lowe rBER com pared w ith OFDM in gauss channel and in fla t fading channe.l A lso in frequency se lective channe lOCWDM outper fo rm s OFDM. OCWDM has good deno i s ing property, an tifad ing prope rty and anti mu ltipath property. OCWDM do es not need CP to reduce ISI and ICI be cause of its orthogonality. It sim plifies m odulation steps. DTCWT can be realized by d ig ita l filters. It reduces computa tiona l com plex ity and OCWDM can be realized by hardw are eas ily. OCWDM applied in DVBT has a broad sight.

References:

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Last Update: 2013-04-08