Estimation of additive noise variance for multiuser CDMA systems

Jingxian Wu, Chengshan Xiao, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

In this paper, a novel additive noise variance estimation algorithm is proposed for multiuser CDMA systems experiencing time varying and frequency selective fading. The algorithm is developed by exploring the eigen-structure of the receive signal correlation matrix, which is characterized by the statistical properties of both the fading channel and the additive white Gaussian noise. Relying only on the knowledge of the receiver signal samples, the algorithm can accurately estimate the variance of the additive noise present at the receiver of multiuser CDMA systems. The estimated noise variance can be employed along with other receiver algorithms to improve system performance.

Original languageEnglish
Title of host publication2005 International Conference on Communications, Circuits and Systems - Proceedings
Pages170-174
Number of pages5
Volume1
Publication statusPublished - 2005
Externally publishedYes
Event2005 International Conference on Communications, Circuits and Systems - Hong Kong, China
Duration: 27 May 200530 May 2005

Other

Other2005 International Conference on Communications, Circuits and Systems
CountryChina
CityHong Kong
Period27/5/0530/5/05

Fingerprint

Additive noise
Code division multiple access
Signal receivers
Frequency selective fading
Time varying systems
Fading channels

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Wu, J., Xiao, C., & Letaief, K. (2005). Estimation of additive noise variance for multiuser CDMA systems. In 2005 International Conference on Communications, Circuits and Systems - Proceedings (Vol. 1, pp. 170-174). [WC-12.P(#02_01_31)]

Estimation of additive noise variance for multiuser CDMA systems. / Wu, Jingxian; Xiao, Chengshan; Letaief, Khaled.

2005 International Conference on Communications, Circuits and Systems - Proceedings. Vol. 1 2005. p. 170-174 WC-12.P(#02_01_31).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wu, J, Xiao, C & Letaief, K 2005, Estimation of additive noise variance for multiuser CDMA systems. in 2005 International Conference on Communications, Circuits and Systems - Proceedings. vol. 1, WC-12.P(#02_01_31), pp. 170-174, 2005 International Conference on Communications, Circuits and Systems, Hong Kong, China, 27/5/05.
Wu J, Xiao C, Letaief K. Estimation of additive noise variance for multiuser CDMA systems. In 2005 International Conference on Communications, Circuits and Systems - Proceedings. Vol. 1. 2005. p. 170-174. WC-12.P(#02_01_31)
Wu, Jingxian ; Xiao, Chengshan ; Letaief, Khaled. / Estimation of additive noise variance for multiuser CDMA systems. 2005 International Conference on Communications, Circuits and Systems - Proceedings. Vol. 1 2005. pp. 170-174
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