Carrier Phase Error Estimation by Smoothing Filters

Konferenz: European Wireless 2014 - 20th European Wireless Conference
14.05.2014 - 16.05.2014 in Barcelona, Spain

Tagungsband: European Wireless 2014

Seiten: 6Sprache: EnglischTyp: PDF

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Kamiya, Norifumi (Cloud System Research Laboratories, NEC Corporation, Kawasaki, Kanagawa, 211-8666, Japan)
Sasaki, Eisaku (Mobile Wireless Solutions Division, NEC Corporation, Kawasaki, Kanagawa, 211-8666, Japan)

In this paper, we present a novel smoothing filter for estimating carrier phase error due to phase noise. The smoothing filter consists of forward and backward recursive filters, each of which is analogous to a conventional first-order phase-locked loop. Results of the mean square error performance are shown for this smoothing filter-based phase error estimation method when working in data-aided and decision-directed modes. We then apply the method as a code-aided phase error estimation technique in an iterative receiver framework. It is shown through simulations that the scheme has a very high phase noise tolerance.