On frequency domain doppler diversity using basis expansion model and EM-based algorithms in CDMA systems

Tianqi Wang, Cheng Li, Hsiao-Hwa Chen, Mohsen Guizani

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

Abstract

In this paper, we propose an algorithm for frequency domain adaptive Doppler shift estimation in the presence of multiple Doppler subpaths in DS-CDMA systems. By modeling doubly selective channel with a basis expansion model (BEM), the proposed method works based on Expectation-Maximization (EM) algorithm and can accurately estimate Doppler shifts. A complete Cramer-Rao Lower Bound (CRLB) analysis of the estimation algorithms is also provided.

Original languageEnglish
Title of host publicationIEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings
Pages4429-4433
Number of pages5
DOIs
Publication statusPublished - 2007 Dec 1
Event50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007 - Washington, DC, United States
Duration: 2007 Nov 262007 Nov 30

Publication series

NameGLOBECOM - IEEE Global Telecommunications Conference

Other

Other50th Annual IEEE Global Telecommunications Conference, GLOBECOM 2007
CountryUnited States
CityWashington, DC
Period07-11-2607-11-30

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Wang, T., Li, C., Chen, H-H., & Guizani, M. (2007). On frequency domain doppler diversity using basis expansion model and EM-based algorithms in CDMA systems. In IEEE GLOBECOM 2007 - 2007 IEEE Global Telecommunications Conference, Proceedings (pp. 4429-4433). [4411752] (GLOBECOM - IEEE Global Telecommunications Conference). https://doi.org/10.1109/GLOCOM.2007.842