Analysis of Timing Error Detectors for Orthogonal Space-Time Block Codes

Abstract—We analyze the properties of a class of low complexity timing error detectors for the purpose of timing error tracking in orthogonal space-time block coding receivers. For symmetrical signal constellations, under the assumptions of ideal data decisions and channel knowledge at the receiver, expressions for the S-curve, estimation error variance and the detector signal-to-noise ratio are derived. Simulations are used to confirm the analytical results and to evaluate the effects of data decision errors on the estimator properties. Symbolerror-rate performance is evaluated for a system operating in a frequency-flat Rayleigh fading environment, where the timing synchronization loss is found to be less than 0.3 dB. In addition to receiver with perfect channel state information, results for pilotbased channel estimation are included in order to examine the effects of channel estimation errors on timing synchronization.

• Type: Conference
• Year: 2007
• Where: ICC
• Authors: Pawel A. Dmochowski, Peter J. McLane
• Keywords: Communications, Estimation Errors, ICC 2007, Timing Error, Timing Synchronization