Code-aided interference suppression for DS/CDMA communications - Part I: Interference suppression capability

H. Vincent Poor; Xiaodong Wang

doi:10.1109/26.623075

Code-aided interference suppression for DS/CDMA communications - Part I: Interference suppression capability

H. Vincent Poor, Xiaodong Wang

Research output: Contribution to journal › Article › peer-review

67 Scopus citations

Abstract

A code-aided technique for the simultaneous suppression of narrow-band interference (NBI) and multiple-access interference (MAI) in direct-sequence code-division multiple-access (DS/CDMA) networks is proposed. This technique is based on the linear minimum mean-square error (MMSE) algorithm for multiuser detection. The performance of this technique against MAI has been considered previously. In this paper, its performance against NBI as well as combined NBI and MAI is addressed. Specifically, the performance of this technique against three types of narrow-band interferers, namely, multitone interferers, autoregressive (AR) interferers, and digital interferers, is analyzed. The NBI suppression performance of this method is then compared with performance bounds of the linear and nonlinear estimator-subtracter NBI suppression techniques. It is seen that this method outperforms all of the previous linear or nonlinear methods of NBI suppression, while simultaneously suppressing the MAI.

Original language	English (US)
Pages (from-to)	1101-1111
Number of pages	11
Journal	IEEE Transactions on Communications
Volume	45
Issue number	9
DOIs	https://doi.org/10.1109/26.623075
State	Published - 1997

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Keywords

DS/CDMA
Mmse multiuser detector
Narrow-band interference suppression

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10.1109/26.623075

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title = "Code-aided interference suppression for DS/CDMA communications - Part I: Interference suppression capability",

abstract = "A code-aided technique for the simultaneous suppression of narrow-band interference (NBI) and multiple-access interference (MAI) in direct-sequence code-division multiple-access (DS/CDMA) networks is proposed. This technique is based on the linear minimum mean-square error (MMSE) algorithm for multiuser detection. The performance of this technique against MAI has been considered previously. In this paper, its performance against NBI as well as combined NBI and MAI is addressed. Specifically, the performance of this technique against three types of narrow-band interferers, namely, multitone interferers, autoregressive (AR) interferers, and digital interferers, is analyzed. The NBI suppression performance of this method is then compared with performance bounds of the linear and nonlinear estimator-subtracter NBI suppression techniques. It is seen that this method outperforms all of the previous linear or nonlinear methods of NBI suppression, while simultaneously suppressing the MAI.",

keywords = "DS/CDMA, Mmse multiuser detector, Narrow-band interference suppression",

author = "Poor, {H. Vincent} and Xiaodong Wang",

note = "Funding Information: Paper approved by C. Robertson, the Editor for Spread Spectrum Systems of the IEEE Communications Society. Manuscript received April 11, 1996; revised January 28, 1997. This work was supported by the U. S. Army Research Office under Grant DAAH04-93-G-0219. This paper was presented in part at the 5th ESA International Workshop on DSP Techniques Applied to Space Communications, Barcelona, Spain, September 25–27, 1996.",

year = "1997",

doi = "10.1109/26.623075",

language = "English (US)",

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journal = "IEEE Transactions on Communications",

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T1 - Code-aided interference suppression for DS/CDMA communications - Part I

T2 - Interference suppression capability

AU - Poor, H. Vincent

AU - Wang, Xiaodong

N1 - Funding Information: Paper approved by C. Robertson, the Editor for Spread Spectrum Systems of the IEEE Communications Society. Manuscript received April 11, 1996; revised January 28, 1997. This work was supported by the U. S. Army Research Office under Grant DAAH04-93-G-0219. This paper was presented in part at the 5th ESA International Workshop on DSP Techniques Applied to Space Communications, Barcelona, Spain, September 25–27, 1996.

PY - 1997

Y1 - 1997

N2 - A code-aided technique for the simultaneous suppression of narrow-band interference (NBI) and multiple-access interference (MAI) in direct-sequence code-division multiple-access (DS/CDMA) networks is proposed. This technique is based on the linear minimum mean-square error (MMSE) algorithm for multiuser detection. The performance of this technique against MAI has been considered previously. In this paper, its performance against NBI as well as combined NBI and MAI is addressed. Specifically, the performance of this technique against three types of narrow-band interferers, namely, multitone interferers, autoregressive (AR) interferers, and digital interferers, is analyzed. The NBI suppression performance of this method is then compared with performance bounds of the linear and nonlinear estimator-subtracter NBI suppression techniques. It is seen that this method outperforms all of the previous linear or nonlinear methods of NBI suppression, while simultaneously suppressing the MAI.

AB - A code-aided technique for the simultaneous suppression of narrow-band interference (NBI) and multiple-access interference (MAI) in direct-sequence code-division multiple-access (DS/CDMA) networks is proposed. This technique is based on the linear minimum mean-square error (MMSE) algorithm for multiuser detection. The performance of this technique against MAI has been considered previously. In this paper, its performance against NBI as well as combined NBI and MAI is addressed. Specifically, the performance of this technique against three types of narrow-band interferers, namely, multitone interferers, autoregressive (AR) interferers, and digital interferers, is analyzed. The NBI suppression performance of this method is then compared with performance bounds of the linear and nonlinear estimator-subtracter NBI suppression techniques. It is seen that this method outperforms all of the previous linear or nonlinear methods of NBI suppression, while simultaneously suppressing the MAI.

KW - DS/CDMA

KW - Mmse multiuser detector

KW - Narrow-band interference suppression

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Code-aided interference suppression for DS/CDMA communications - Part I: Interference suppression capability

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