A Study on Channel Estimation Using Two-Dimensional Interpolation Filters for Mobile Digital Terrestrial Television Broadcasting

Yusuke SAKAGUCHI  Yuhei NAGAO  Masayuki KUROSAKI  Hiroshi OCHI  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E91-A   No.4   pp.1150-1154
Publication Date: 2008/04/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e91-a.4.1150
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Selected Papers from the 20th Workshop on Circuits and Systems in Karuizawa)
digital terrestrial television broadcasting,  channel estimation,  scattered pilot,  two dimensional filter,  

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This paper presents discussion about channel fluctuation on channel estimation in digital terrestrial television broadcasting. This channel estimation uses a two-dimensional (2D) filter. In our previous work, only a structure of a lattice is considered for generation of nonrectangular 2D filter. We investigate generation of nonrectangular 2D filter with adaptive method, because we should refer to not only a lattice but also channel conditions. From the computer simulations, we show that bit error rate of the proposed filter is improved compared to that of the filter depending on only lattices.