Title :
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
fDate :
Jan. 31 2011-Feb. 3 2011
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;
Conference_Titel :
Communications Theory Workshop (AusCTW), 2011 Australian
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4244-9714-0
DOI :
10.1109/AUSCTW.2011.5728751
