On the performance of multi-user DS-CDMA systems over power-line channels

Khaled M. Rabie; Emad Alsusa

doi:10.1109/CSNDSP.2014.6923797

On the performance of multi-user DS-CDMA systems over power-line channels

Khaled M. Rabie^*
, Emad Alsusa

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

In this paper we propose to implement direct-spread code-division multiple access (DS-CDMA) over powerline channels combined with blanking at the receiver to reduce the effect of impulsive noise (IN). Two spreading sequences are investigated in this study, namely, Walsh-Hadamard and polyphase codes. The impact of different loading scenarios, ranging from light-to full-loading, on the probability of blanking error and output signal-to-noise ratio (SNR) performance is examined. In addition, the optimal blanking threshold that maximizes the system performance is considered for various system loadings and under different IN conditions. Results reveal that the proposed technique is able to provide remarkable output SNR improvement relative to the conventional DS-CDMA system. It is also shown that this enhancement becomes more significant when the number of active users is reduced.

Original language	English
Title of host publication	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	52-55
Number of pages	4
ISBN (Electronic)	9781479925810
DOIs	https://doi.org/10.1109/CSNDSP.2014.6923797
State	Published - 14 Oct 2014
Externally published	Yes

Publication series

Name	2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

Keywords

Blanking
Walsh-Hadamard (WH) codes
direct-sequence codedivision multiple access (DS-CDMA)
impulsive noise
peak-to-average power ratio (PAPR)
poly-phase codes
power-line communications (PLC)

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications

Access to Document

10.1109/CSNDSP.2014.6923797

Cite this

Rabie, K. M., & Alsusa, E. (2014). On the performance of multi-user DS-CDMA systems over power-line channels. In 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014 (pp. 52-55). Article 6923797 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CSNDSP.2014.6923797

Rabie, Khaled M. ; Alsusa, Emad. / On the performance of multi-user DS-CDMA systems over power-line channels. 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 52-55 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014).

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title = "On the performance of multi-user DS-CDMA systems over power-line channels",

abstract = "In this paper we propose to implement direct-spread code-division multiple access (DS-CDMA) over powerline channels combined with blanking at the receiver to reduce the effect of impulsive noise (IN). Two spreading sequences are investigated in this study, namely, Walsh-Hadamard and polyphase codes. The impact of different loading scenarios, ranging from light-to full-loading, on the probability of blanking error and output signal-to-noise ratio (SNR) performance is examined. In addition, the optimal blanking threshold that maximizes the system performance is considered for various system loadings and under different IN conditions. Results reveal that the proposed technique is able to provide remarkable output SNR improvement relative to the conventional DS-CDMA system. It is also shown that this enhancement becomes more significant when the number of active users is reduced.",

keywords = "Blanking, Walsh-Hadamard (WH) codes, direct-sequence codedivision multiple access (DS-CDMA), impulsive noise, peak-to-average power ratio (PAPR), poly-phase codes, power-line communications (PLC)",

author = "Rabie, \{Khaled M.\} and Emad Alsusa",

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doi = "10.1109/CSNDSP.2014.6923797",

language = "English",

series = "2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014",

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Rabie, KM & Alsusa, E 2014, On the performance of multi-user DS-CDMA systems over power-line channels. in 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014., 6923797, 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014, Institute of Electrical and Electronics Engineers Inc., pp. 52-55. https://doi.org/10.1109/CSNDSP.2014.6923797

On the performance of multi-user DS-CDMA systems over power-line channels. / Rabie, Khaled M.; Alsusa, Emad.
2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 52-55 6923797 (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

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AU - Rabie, Khaled M.

AU - Alsusa, Emad

PY - 2014/10/14

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N2 - In this paper we propose to implement direct-spread code-division multiple access (DS-CDMA) over powerline channels combined with blanking at the receiver to reduce the effect of impulsive noise (IN). Two spreading sequences are investigated in this study, namely, Walsh-Hadamard and polyphase codes. The impact of different loading scenarios, ranging from light-to full-loading, on the probability of blanking error and output signal-to-noise ratio (SNR) performance is examined. In addition, the optimal blanking threshold that maximizes the system performance is considered for various system loadings and under different IN conditions. Results reveal that the proposed technique is able to provide remarkable output SNR improvement relative to the conventional DS-CDMA system. It is also shown that this enhancement becomes more significant when the number of active users is reduced.

AB - In this paper we propose to implement direct-spread code-division multiple access (DS-CDMA) over powerline channels combined with blanking at the receiver to reduce the effect of impulsive noise (IN). Two spreading sequences are investigated in this study, namely, Walsh-Hadamard and polyphase codes. The impact of different loading scenarios, ranging from light-to full-loading, on the probability of blanking error and output signal-to-noise ratio (SNR) performance is examined. In addition, the optimal blanking threshold that maximizes the system performance is considered for various system loadings and under different IN conditions. Results reveal that the proposed technique is able to provide remarkable output SNR improvement relative to the conventional DS-CDMA system. It is also shown that this enhancement becomes more significant when the number of active users is reduced.

KW - Blanking

KW - Walsh-Hadamard (WH) codes

KW - direct-sequence codedivision multiple access (DS-CDMA)

KW - impulsive noise

KW - peak-to-average power ratio (PAPR)

KW - poly-phase codes

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Rabie KM, Alsusa E. On the performance of multi-user DS-CDMA systems over power-line channels. In 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014. Institute of Electrical and Electronics Engineers Inc. 2014. p. 52-55. 6923797. (2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, CSNDSP 2014). doi: 10.1109/CSNDSP.2014.6923797

On the performance of multi-user DS-CDMA systems over power-line channels

Abstract

Publication series

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Cite this