Optimal blind nonlinear least-squares carrier phase and frequency offset estimation for circular QAM

Timothy Duryea, Erchin Serpedin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper introduces a family of blind feedforward nonlinear least-squares (NLS) estimators for joint estimation of the carrier phase and frequency offset of circular quadrature amplitude modulated (QAM) transmissions. As an extension of the work of Wang et al, a constellation-dependent optimal matched nonlinear estimator is derived to minimize the asymptotic variance on a circular QAM constellation. Conventional monomial estimators as well as practical approximations to the optimal estimator are introduced to conduct a comparative performance study. Finally, computer simulations are presented to confirm the theoretical predictions and to draw conclusions about the best estimation method for implementation in a practical communication system.

Original languageEnglish
Title of host publication3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings
PublisherInternational Institute of Informatics and Systemics, IIIS
Pages100-105
Number of pages6
Volume2
ISBN (Print)9806560477, 9789806560475
Publication statusPublished - 2005
Externally publishedYes
Event3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005 - Austin, TX, United States
Duration: 24 Jul 200527 Jul 2005

Other

Other3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005
CountryUnited States
CityAustin, TX
Period24/7/0527/7/05

    Fingerprint

Keywords

  • Blind synchronization.
  • Carrier phase
  • Carrier synchronization
  • Circular QAM
  • Frequency offset
  • Nonlinear least-squares estimator

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Control and Systems Engineering

Cite this

Duryea, T., & Serpedin, E. (2005). Optimal blind nonlinear least-squares carrier phase and frequency offset estimation for circular QAM. In 3rd International Conference on Computing, Communications and Control Technologies, CCCT 2005, Proceedings (Vol. 2, pp. 100-105). International Institute of Informatics and Systemics, IIIS.