Performance Improvement of Post-FFT Adaptive Array with Reciprocal Interpolation for ISDB -T

Tomoaki TAKEUCHI  Hiroyuki HAMAZUMI  Kazuhiko SHIBUYA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.11   pp.3527-3535
Publication Date: 2012/11/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3527
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
Keyword: 
digital terrestrial broadcasting,  co-channel interference,  adaptive array,  

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Summary: 
As many digital terrestrial broadcasting stations have been installed and are now broadcasting, the problem of poor reception has become serious even though the receiving powers are high. Although we had developed a interference canceller for broadcast-wave relay stations, an adaptive array is desirable to be more robust against low-D/U multipath environment as a receiver for the service area. In this paper, we propose a weighting coefficient optimization algorithm for post-FFT adaptive array using the reciprocals of weighting coefficients. Numerical examples show the effectiveness of the proposed method.