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A new bound and algorithm for star 16-QAM carrier phase estimation

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dc.contributor.authorRice, F.
dc.contributor.authorRice, M.
dc.contributor.authorCowley, W.
dc.date.issued2003
dc.descriptionCopyright © 2003 IEEE
dc.description.abstractThe true Cramer-Rao lower bound (CRLB) is derived and evaluated for the estimation of carrier phase of Star 16-quadrature amplitude modulation (QAM) and can be simply applied to carrier frequency estimation. Different geometries are investigated by varying the ring ratio (RR). For signal-to-noise ratios (SNRs) between 6-15 dB, the CRLB with RR=3 is lower than that of Square 16-QAM. A modified phase estimator is presented, which closely follows the new CRLB. Investigation of symbol error performance in short packet length reveals Star 16-QAM to be superior to Square 16-QAM for SNR<13 dB, which is a reasonable operating range for a coded system. Although Square 16-QAM and Star RR=1.8 are optimum for a perfect receiver, when the effect of phase estimation is considered, we find Star RR=3 to be better for SNR below 10 dB.
dc.description.statementofresponsibilityFeng Rice, Mark Rice, and Bill Cowley
dc.identifier.citationIEEE Transactions on Communications, 2003; 51(2):161-165
dc.identifier.doi10.1109/TCOMM.2003.809235
dc.identifier.issn0090-6778
dc.identifier.urihttp://hdl.handle.net/2440/2379
dc.language.isoen
dc.publisherIEEE-Inst Electrical Electronics Engineers Inc
dc.rightsCopyright IEEE 2003
dc.source.urihttps://doi.org/10.1109/TCOMM.2003.809235
dc.titleA new bound and algorithm for star 16-QAM carrier phase estimation
dc.typeJournal article
pubs.publication-statusPublished

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