NDLI: Filter bank based frequency-domain equalizers with diversity combining

Content Provider	IEEE Xplore Digital Library
Author	Ihalainen, T. Yuan Yang Renfors, M.
Copyright Year	2008
Description	Author affiliation: Dept. of Commun. Eng., Tampere Univ. of Technol., Tampere (Ihalainen, T.; Yuan Yang; Renfors, M.)
Abstract	In earlier studies, we have considered filter bank based frequency domain processing for channel equalization both in multicarrier and single-carrier transmission. With mildly frequency selective subband processing and modest number of subbands, these approaches are able to provide better performance than the conventional FFT-based multicarrier technique OFDM, on one hand, and FFT-based frequency-domain equalizer in single-carrier transmission, on the other. The benefits in transmission link efficiency are due to the lack of guard-interval overhead and, in the multicarrier case, also due to reduced guard- band. Another significant advantage of this approach is that the same filter bank can be utilized to implement significant part of the receiver selectivity, in a very flexible way. In this paper, we extend the filter bank approach to cover also multi- antenna reception schemes. We show that the subband equalizer structure of the basic single-input scheme can be used for the different antennas of a multi-antenna receiver while introducing frequency domain combining of the diversity branches. We also show how to extend the frequency-sampling based techniques for channel equalizer design to the multi-antenna case. Performance evaluation of a simple receiver antenna diversity scheme in single-carrier transmission with maximum ratio combining is included to verify the ideas.
Starting Page	93
Ending Page	96
File Size	178416
Page Count	4
File Format	PDF
ISBN	9781424416837
DOI	10.1109/ISCAS.2008.4541362
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diversity reception Filter bank Equalizers Frequency domain analysis Signal processing Frequency estimation OFDM Receiving antennas Wireless communication Bandwidth
Content Type	Text
Resource Type	Article

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