Block Detection of Multiple Symbol DPSK in a Statistically Unknown Time-Varying Channel

Author

Ricklin, Nathan ; Zeidler, James R.

Author_Institution

Sch. of Electr. & Comput. Eng., Univ. of California, La Jolla, CA, USA

fYear

2009

fDate

14-18 June 2009

Firstpage

1

Lastpage

5

Abstract

We present a detection scheme for multiple-symbol DPSK for use in a statistically unknown time-varying channel. The scheme relies on a parametric representation of the time- varying channel, resulting in a reduction in the number of parameters required to be determined by optimizing a maximum likelihood sequence estimation (MLSE) type cost function. We also present a reduced-complexity version of the detection scheme based on sphere decoding. Analysis and simulations show good performance in Rayleigh fading over varying degrees of channel time-variation for an appropriately selected channel parameterization.

Keywords

decoding; differential phase shift keying; maximum likelihood sequence estimation; optimisation; statistical analysis; time-varying channels; Rayleigh fading; channel parameterization; differential phase shift keying; maximum likelihood sequence estimation; reduced-complexity version; sphere decoding; statistically unknown time-varying channel; Channel estimation; Cost function; Differential quadrature phase shift keying; Frequency; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Rayleigh channels; Statistics; Time-varying channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2009. ICC '09. IEEE International Conference on

Conference_Location

Dresden

ISSN

1938-1883

Print_ISBN

978-1-4244-3435-0

Electronic_ISBN

1938-1883

Type

conf

DOI

10.1109/ICC.2009.5198795

Filename

5198795