NDLI: Maximal Ratio Combining Subband Adaptive Array Using Decision Feedback Approach

Content Provider	IEEE Xplore Digital Library
Author	Taniguchi, T. Bin Ramli, N. Karasawa, Y.
Copyright Year	2008
Description	Author affiliation: Telekom Malaysia Berhad, Multimedia Coll., Kuala Lumpur (Bin Ramli, N.) \|\| Dept. of Electron. Eng., Univ. of Electro-Commun., Chofu (Taniguchi, T.; Karasawa, Y.)
Abstract	This paper presents a maximal ratio combining (MRC) subband adaptive array using decision feedback approach. The subband adaptive array could extend the MRC scheme for frequency flat environments to be used in frequency selective channels, but the nonuniqueness of subband weights with respect to their phase rotation disturbs the efficient synthesis of output signal through the inverse DFT (discrete Fourier transform). Our method adopts two-step approach to solve this problem: In the first step, we use simple phase adjustment and derive hard-decision temporary output. Then in the second step, it is used as a training sequence to determine optimum phase compensation. Though this idea seems very simple, the proposed scheme significantly improves the performance of MRC based adaptive array and it is verified through computer simulations together with some features.
Starting Page	297
Ending Page	302
File Size	1659794
Page Count	6
File Format	PDF
ISBN	9781424435548
DOI	10.1109/ISSPIT.2008.4775711
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-12-16
Publisher Place	Serbia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diversity reception Adaptive arrays Feedback Phased arrays Signal processing Narrowband Frequency synthesizers Discrete Fourier transforms Computer simulation Adaptive filters cyclic prefix Adaptive array maximal ratio combining (MRC) subband adaptive filter decision feedback
Content Type	Text
Resource Type	Article

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