Detection of Cyclostationarity in the Presence of Temporal or Spatial Structure with Applications to Cognitive Radio

Aaron Pries1, David Ramírez2, Peter Schreier3

  • 1University of Paderborn
  • 2University Carlos III of Madrid
  • 3Univ. of Paderborn

Details

13:30 - 15:30 | Tue 22 Mar | Poster Area F | SPTM-P1.3

Session: Detection

Abstract

One approach to spectrum sensing for cognitive radio is the detection of cyclostationarity. We extend an existing multiantenna detector for cyclostationarity proposed by Ramírez et al. [1], which makes no assumptions about the noise beyond being (temporally) wide-sense stationary. In special cases, the noise could be uncorrelated among antennas, or it could be temporally white. The performance of a general detector can be improved by making use of a priori structural information. We do not, however, require knowledge of the exact values of the temporal or spatial noise covariances. We develop an asymptotic generalized likelihood ratio test and evaluate the performance by simulations.