A technique to determine number and locations of frame synchronization pilot carriers in pilot-based OFDM systems

Author

Tascioglu, S. ; Ureten, Okay ; Serinken, Nur ; Yilmaz, Muhittin

Author_Institution

Ankara Univ., Turkey

fYear

2004

fDate

28-30 April 2004

Firstpage

61

Lastpage

64

Abstract

The generation of frame synchronization waveforms with desired autocorrelation properties is addressed for OFDM systems that use pilot tones for frame synchronization. A genetic algorithm (GA) is proposed to search for good subcarrier locations for frame synchronization pilots. The performance of the generated synchronization waveforms is evaluated by a simulated OFDM system and it is demonstrated that the generated waveforms achieve the desired frame synchronization performance. It is shown that the GA converges to a good solution much faster than a random search when the GA parameters are properly chosen. The best side peak level suppression for a given number of carriers is also investigated.

Keywords

OFDM modulation; convergence of numerical methods; genetic algorithms; synchronisation; GA; OFDM; frame synchronization pilot carriers; frame synchronization waveform generation; genetic algorithm; pilot tones; random search; side peak level suppression; subcarrier locations; Digital video broadcasting; Genetic algorithms; OFDM; Telecommunication standards; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Communications Applications Conference, 2004. Proceedings of the IEEE 12th

Print_ISBN

0-7803-8318-4

Type

conf

DOI

10.1109/SIU.2004.1338257

Filename

1338257