Transmitter Precoder Design to Improve the Performance of the MUSIC Algorithm

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Transmitter Precoder Design to Improve the Performance of the MUSIC Algorithm
Title:
Transmitter Precoder Design to Improve the Performance of the MUSIC Algorithm
Journal Title:
Signal Processing (Elsevier)
Keywords:
Publication Date:
05 June 2012
Citation:
Zhang, L.; Chew, Y. H.; Wong, W.-C., "Transmitter Precoder Design to Improve the Performance of the MUSIC Algorithm," Signal Processing, IEEE Transactions on , vol.PP, no.99, pp.1,1, 0, doi: 10.1109/TSP.2012.2202656
Abstract:
Using the MUSIC (MUltiple SIgnal Classification) algorithm to estimate the angle-of-arrival (AoA), we derive a new asymptotic error variance bound when the transmitted signal can be pre-processed. We next propose a precoder design to achieve this bound. However, such an optimal precoder requires channel state information at the transmitter (CSIT) exclusive of the receiver array which cannot be separately estimated practically. A more feasible precoder design, which leverages on the feedback CSIT estimated at the receiver, is next proposed. Using the performance of the optimal precoder which achieves the bound asymptotically as a benchmark, the practical precoder design performs close to the optimal precoder even in the high-resolution scenario. Both precoder schemes exhibit performance improvement compared with the case when no precoder is used.
License type:
PublisherCopyrights
Funding Info:
Description:
ISSN:
1053-587X
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