Performance Evaluation of Timing Synchronization in OFDM-based Cognitive Radio Systems


M. Zivkovic, R. Mathar,


        In this paper, the performance of Schmidl and Cox (S&C) timing estimator in cognitive radio systems under a fractional bandwidth (FBW) scenario is investigated. The synchronization preamble is appropriately modified in order to avoid transmission in the subbands where primary users (PU) are active. However, at the receiver, the timing synchronizer processes all received signal samples within the given OFDM band without any knowledge of a PU presence, thus being affected by interference. Statistical properties of timing metric in the presence of interference caused by PU are derived for an AWGN channel.

BibTEX Reference Entry 

	author = {Milan Zivkovic and Rudolf Mathar},
	title = "Performance Evaluation of Timing Synchronization in {OFDM}-based Cognitive Radio Systems",
	pages = "1-5",
	booktitle = "{IEEE} Vehicular Technology Conference Fall (VTC-Fall) 2011",
	address = {San Francisco, USA },
	month = Sep,
	year = 2011,
	hsb = hsb999910058108,


 Download paper  Download bibtex-file

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights there in are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.