Title :
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
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;
Conference_Titel :
Communications, 2009. ICC '09. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3435-0
Electronic_ISBN :
1938-1883
DOI :
10.1109/ICC.2009.5198795
