Efficient simulation of OFDM and OSTBC-OFDM systems over multipath Rayleigh fading channels

Author

Wijesinghe, P. ; Gunawardana, U. ; Liyanapathirana, R.

Author_Institution

Sch. of Eng., Univ. of Western Sydney, Sydney, NSW, Australia

fYear

2011

fDate

Jan. 31 2011-Feb. 3 2011

Firstpage

136

Lastpage

141

Abstract

We present an importance sampling (IS) based approach for efficient simulation of Orthogonal Frequency Division Multiplexing Systems (OFDM) operating over multipath fading channels. We derive the optimal biasing parameters for Rayleigh fading multipath channels considering an OFDM system and an OFDM system with Orthogonal Space-Time Block Coded (OSTBC) transmission. The numerical results prove significant computational efficiency gains in the order of 10⁸ in estimating probabilities of the order 10^-11.

Keywords

OFDM modulation; Rayleigh channels; multipath channels; orthogonal codes; space-time block codes; OSTBC-OFDM systems; Rayleigh fading multipath channels; efficient simulation; importance sampling; multipath Rayleigh fading channels; multipath fading channels; optimal biasing parameters; orthogonal frequency division multiplexing systems; orthogonal space-time block coded transmission; Accuracy; Gain; Monte Carlo methods; OFDM; Rayleigh channels; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications Theory Workshop (AusCTW), 2011 Australian

Conference_Location

Melbourne, VIC

Print_ISBN

978-1-4244-9714-0

Type

conf

DOI

10.1109/AUSCTW.2011.5728751

Filename

5728751