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

—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 timevarying 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.

• Type: Conference
• Year: 2009
• Where: ICC
• Authors: Nathan Ricklin, James R. Zeidler
• Keywords: Communications, Detection Scheme, ICC 2009, Maximum Likelihood Sequence Estimation, Unknown Time-varying Channel