Performance of two dimensional asymmetrically clipped optical OFDM

Author

Mondal, M. Rubaiyat H ; Panta, Kusha R. ; Armstrong, Jean

Author_Institution

Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, VIC, Australia

fYear

2010

fDate

6-10 Dec. 2010

Firstpage

995

Lastpage

999

Abstract

In this paper, the technique of asymmetrically clipped optical orthogonal frequency-division multiplexing (ACO-OFDM) has been extended to a two dimensional (2D) optical communication system. Simulation results for the performance of 2D spatial ACO-OFDM (SACO-OFDM) in the presence of additive white Gaussian noise (AWGN) are presented. The bit error rate (BER) and optical power efficiency of SACO-OFDM are investigated for 4, 16 and 64-QAM constellations. It is shown that SACO-OFDM with 16-QAM modulation has the same spectral efficiency as 2D spatial DC biased OFDM (SDCO-OFDM) system with 4-QAM but requires 4.5 dB less optical power for a given BER. It is also shown that the use of a cyclic prefix makes the new system tolerant to spatial misalignment between transmitter and receiver.

Keywords

AWGN; OFDM modulation; multiplexing; optical communication; quadrature amplitude modulation; 2D asymmetrically clipped optical OFDM; BER; QAM; SACO-OFDM; additive white Gaussian noise; asymmetrically clipped optical orthogonal frequency-division multiplexing; bit error rate; cyclic prefix; optical communication system; optical power efficiency;

fLanguage

English

Publisher

ieee

Conference_Titel

GLOBECOM Workshops (GC Wkshps), 2010 IEEE

Conference_Location

Miami, FL

Print_ISBN

978-1-4244-8863-6

Type

conf

DOI

10.1109/GLOCOMW.2010.5700475

Filename

5700475