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International Journal of Digital Multimedia Broadcasting
Volume 2009 (2009), Article ID 303627, 9 pages
Research Article

The Implementation of a 2/4/8 Antennas Configurable Diversity OFDM Receiver for Mobile HDTV Application

1Graduate School of Engineering and Science, University of the Ryukyus, Okinawa 903-0213, Japan
2Automotive Information Systems Department, SANYO Electric Co., Ltd., Osaka 570-8677, Japan
3Development-I, Magna Design Net, Inc, Okinawa 901-0155, Japan

Received 1 February 2009; Accepted 7 October 2009

Academic Editor: Robert Briskman

Copyright © 2009 Jing Gao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Two pre-FFT adaptive array (AA) antenna combiners and a post-FFT carrier diversity (CD) combiner are integrated with a Japan Terrestrial digital TV (ISDB-T) OFDM receiver using 90 nm 7M1P CMOS process. A 2/4/8-antenna diversity receiver can be configured and a low-cost 4 antenna diversity reception system can be realized in one LSI by making use of the AA-CD two-stage diversity combining method. Mobile reception performance is increased by 1.63 times using a denoise filter circuit and SPLINE interpolator under urban 6-path Rayleigh fading (TU6) model with 2-antenna post-FFT carrier diversity (2CD) combing mode. The die area is 49  m m 2 and the power consumption is 310 mW.