A new method for frame synchronization in OFDMA mode of WMAN

Author

Pushpa, K. ; Kishore, Ch Nanda ; Yoganandam, Y.

Author_Institution

Osmania Univ., Hyderabad

fYear

2008

fDate

19-21 Nov. 2008

Firstpage

1

Lastpage

6

Abstract

In this paper, we propose a new method for frame synchronization in OFDMA mode of WMAN. The scheme is based on the preamble suggested for OFDMA mode of WMAN where the preamble consists of real subsymbols and OFDMA data symbols contain complex subsymbols for each frame. The proposed method is independent of frequency offset and results in sharp peak at the frame boundary. A simple approach for selecting appropriate threshold to detect the frame boundary is presented. Simulations are conducted for AWGN and frequency selective channels to demonstrate the performance of the proposed method. Further, the performance of the proposed method is compared with that of the existing methods and it is found that the proposed method exhibits better performance as compared to that of existing methods.

Keywords

AWGN channels; OFDM modulation; frequency division multiple access; metropolitan area networks; radio networks; synchronisation; AWGN channels; OFDMA mode; WMAN; frame synchronization; frequency offset; frequency selective channels; wireless metropolitan area networks; AWGN; Binary phase shift keying; Detection algorithms; Frequency synchronization; Interchannel interference; OFDM modulation; Quadrature amplitude modulation; Quadrature phase shift keying; Timing; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2008 - 2008 IEEE Region 10 Conference

Conference_Location

Hyderabad

Print_ISBN

978-1-4244-2408-5

Electronic_ISBN

978-1-4244-2409-2

Type

conf

DOI

10.1109/TENCON.2008.4766711

Filename

4766711