Fast simulation of OFDM systems over frequency selective fading channels

P. Wijesinghe; U. Gunawardana; R. Liyanapathirana

doi:10.1109/SPCOM.2010.5560561

Fast simulation of OFDM systems over frequency selective fading channels

P. Wijesinghe, U. Gunawardana, R. Liyanapathirana

Research output: Chapter in Book / Conference Paper › Conference Paper › peer-review

Abstract

This paper illustrates the use of the Importance Sampling (IS) technique for efficient simulation of Orthogonal Frequency Division Multiplexing Systems operating over frequency selective fading channels with equalization. In order to achieve higher estimator variance reduction gains, the proper biasing procedure for time domain noise density function and the way of un-biasing the error count at the receiver in frequency domain are shown. Further, the optimum biasing parameters for conventional importance sampling (CIS) and improved importance sampling (IIS) methods are obtained. It is demonstrated, through simulations, that the proposed methods can provide extensive gains in estimator variance reduction and runtime saving compared to the conventional Monte-Carlo (MC) simulations.

Original language	English
Title of host publication	Proceedings of the 2010 International Conference on Signal Processing and Communications (SPCOM 2010): Bangalore, India, 18-21 July 2010
Publisher	IEEE
Number of pages	5
ISBN (Print)	9781424471362
DOIs	https://doi.org/10.1109/SPCOM.2010.5560561
Publication status	Published - 2010
Event	IEEE International Conference on Signal Processing and Communications - Duration: 18 Jul 2010 → …

Conference

Conference	IEEE International Conference on Signal Processing and Communications
Period	18/07/10 → …

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10.1109/SPCOM.2010.5560561

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title = "Fast simulation of OFDM systems over frequency selective fading channels",

abstract = "This paper illustrates the use of the Importance Sampling (IS) technique for efficient simulation of Orthogonal Frequency Division Multiplexing Systems operating over frequency selective fading channels with equalization. In order to achieve higher estimator variance reduction gains, the proper biasing procedure for time domain noise density function and the way of un-biasing the error count at the receiver in frequency domain are shown. Further, the optimum biasing parameters for conventional importance sampling (CIS) and improved importance sampling (IIS) methods are obtained. It is demonstrated, through simulations, that the proposed methods can provide extensive gains in estimator variance reduction and runtime saving compared to the conventional Monte-Carlo (MC) simulations.",

author = "P. Wijesinghe and U. Gunawardana and R. Liyanapathirana",

year = "2010",

doi = "10.1109/SPCOM.2010.5560561",

language = "English",

isbn = "9781424471362",

booktitle = "Proceedings of the 2010 International Conference on Signal Processing and Communications (SPCOM 2010): Bangalore, India, 18-21 July 2010",

publisher = "IEEE",

note = "IEEE International Conference on Signal Processing and Communications ; Conference date: 18-07-2010",

}

Wijesinghe, P, Gunawardana, U & Liyanapathirana, R 2010, Fast simulation of OFDM systems over frequency selective fading channels. in Proceedings of the 2010 International Conference on Signal Processing and Communications (SPCOM 2010): Bangalore, India, 18-21 July 2010. IEEE, IEEE International Conference on Signal Processing and Communications, 18/07/10. https://doi.org/10.1109/SPCOM.2010.5560561

TY - GEN

T1 - Fast simulation of OFDM systems over frequency selective fading channels

AU - Wijesinghe, P.

AU - Gunawardana, U.

AU - Liyanapathirana, R.

PY - 2010

Y1 - 2010

N2 - This paper illustrates the use of the Importance Sampling (IS) technique for efficient simulation of Orthogonal Frequency Division Multiplexing Systems operating over frequency selective fading channels with equalization. In order to achieve higher estimator variance reduction gains, the proper biasing procedure for time domain noise density function and the way of un-biasing the error count at the receiver in frequency domain are shown. Further, the optimum biasing parameters for conventional importance sampling (CIS) and improved importance sampling (IIS) methods are obtained. It is demonstrated, through simulations, that the proposed methods can provide extensive gains in estimator variance reduction and runtime saving compared to the conventional Monte-Carlo (MC) simulations.

AB - This paper illustrates the use of the Importance Sampling (IS) technique for efficient simulation of Orthogonal Frequency Division Multiplexing Systems operating over frequency selective fading channels with equalization. In order to achieve higher estimator variance reduction gains, the proper biasing procedure for time domain noise density function and the way of un-biasing the error count at the receiver in frequency domain are shown. Further, the optimum biasing parameters for conventional importance sampling (CIS) and improved importance sampling (IIS) methods are obtained. It is demonstrated, through simulations, that the proposed methods can provide extensive gains in estimator variance reduction and runtime saving compared to the conventional Monte-Carlo (MC) simulations.

UR - http://handle.uws.edu.au:8081/1959.7/562653

UR - http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=5552578

U2 - 10.1109/SPCOM.2010.5560561

DO - 10.1109/SPCOM.2010.5560561

M3 - Conference Paper

SN - 9781424471362

BT - Proceedings of the 2010 International Conference on Signal Processing and Communications (SPCOM 2010): Bangalore, India, 18-21 July 2010

PB - IEEE

T2 - IEEE International Conference on Signal Processing and Communications

Y2 - 18 July 2010

ER -

Fast simulation of OFDM systems over frequency selective fading channels

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