International Journal of Scientific Engineering and Technology
  • Year: 2017
  • Volume: 6
  • Issue: 7

Timing Synchronization in Cognitive Radio Systems Using Improved Preamble Structure

1Dept. of E.C.E., Rajiv Gandhi Institute of Technology, M. G. University, Kerala, chanducb@gmail.com

2Dept. of E.C.E., Mar Baselios College of Engineering and Technology, Kerala University, Kerala, suparnasreedhar@gmail.com

3Dept. of E.C.E., LBS Institute of Technology for Women, Kerala University, Kerala, India, snandan.nair@gmail.com

Online published on 18 July, 2017.

Abstract

In this paper, a new preamble structure is used for the timing synchronization of cognitive radio systems. The preamble is designed to achieve an improved performance by considerably reducing the broad plateau and thereby avoid the need for equalization. The estimation performance is also evaluated by computing the Correct Detection Rate (CDR). The application of the same is analysed in a cognitive radio environment.

Keywords

Cognitive radio, OFDM, preamble, timing synchronization