Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA

Ranga HETTIARACHCHI; Mitsuo YOKOYAMA; Hideyuki UEHARA; Takashi OHIRA

doi:10.1587/transfun.E92.A.298

Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA

Ranga HETTIARACHCHI, Mitsuo YOKOYAMA, Hideyuki UEHARA, Takashi OHIRA

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In this paper, performance of a novel interference cancellation technique for the single user detection in a direct-sequence code-division multiple access (DS-CDMA) system has been investigated. This new algorithm is based on the Cycle-and-Add property of PN (Pseudorandom Noise) sequences and can be applied for both synchronous and asynchronous systems. The proposed strategy provides a simple method that can delete interference signals one by one in spite of the power levels of interferences. Therefore, it is possible to overcome the near-far problem (NFP) in a successive manner without using transmit power control (TPC) techniques. The validity of the proposed procedure is corroborated by computer simulations in additive white Gaussian noise (AWGN) and frequency-nonselective fading channels. Performance results indicate that the proposed receiver outperforms the conventional receiver and, in many cases, it does so with a considerable gain.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.1 pp.298-306

Publication Date: 2009/01/01

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Online ISSN: 1745-1337

DOI: 10.1587/transfun.E92.A.298

Type of Manuscript: PAPER

Category: Spread Spectrum Technologies and Applications

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Ranga HETTIARACHCHI, Mitsuo YOKOYAMA, Hideyuki UEHARA, Takashi OHIRA, "Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA" in IEICE TRANSACTIONS on Fundamentals, vol. E92-A, no. 1, pp. 298-306, January 2009, doi: 10.1587/transfun.E92.A.298.
Abstract: In this paper, performance of a novel interference cancellation technique for the single user detection in a direct-sequence code-division multiple access (DS-CDMA) system has been investigated. This new algorithm is based on the Cycle-and-Add property of PN (Pseudorandom Noise) sequences and can be applied for both synchronous and asynchronous systems. The proposed strategy provides a simple method that can delete interference signals one by one in spite of the power levels of interferences. Therefore, it is possible to overcome the near-far problem (NFP) in a successive manner without using transmit power control (TPC) techniques. The validity of the proposed procedure is corroborated by computer simulations in additive white Gaussian noise (AWGN) and frequency-nonselective fading channels. Performance results indicate that the proposed receiver outperforms the conventional receiver and, in many cases, it does so with a considerable gain.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.298/_p

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@ARTICLE{e92-a_1_298,
author={Ranga HETTIARACHCHI, Mitsuo YOKOYAMA, Hideyuki UEHARA, Takashi OHIRA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA},
year={2009},
volume={E92-A},
number={1},
pages={298-306},
abstract={In this paper, performance of a novel interference cancellation technique for the single user detection in a direct-sequence code-division multiple access (DS-CDMA) system has been investigated. This new algorithm is based on the Cycle-and-Add property of PN (Pseudorandom Noise) sequences and can be applied for both synchronous and asynchronous systems. The proposed strategy provides a simple method that can delete interference signals one by one in spite of the power levels of interferences. Therefore, it is possible to overcome the near-far problem (NFP) in a successive manner without using transmit power control (TPC) techniques. The validity of the proposed procedure is corroborated by computer simulations in additive white Gaussian noise (AWGN) and frequency-nonselective fading channels. Performance results indicate that the proposed receiver outperforms the conventional receiver and, in many cases, it does so with a considerable gain.},
keywords={},
doi={10.1587/transfun.E92.A.298},
ISSN={1745-1337},
month={January},}

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TY - JOUR
TI - Interference Canceller Based on Cycle-and-Add Property for Single User Detection in DS-CDMA
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 298
EP - 306
AU - Ranga HETTIARACHCHI
AU - Mitsuo YOKOYAMA
AU - Hideyuki UEHARA
AU - Takashi OHIRA
PY - 2009
DO - 10.1587/transfun.E92.A.298
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2009
AB - In this paper, performance of a novel interference cancellation technique for the single user detection in a direct-sequence code-division multiple access (DS-CDMA) system has been investigated. This new algorithm is based on the Cycle-and-Add property of PN (Pseudorandom Noise) sequences and can be applied for both synchronous and asynchronous systems. The proposed strategy provides a simple method that can delete interference signals one by one in spite of the power levels of interferences. Therefore, it is possible to overcome the near-far problem (NFP) in a successive manner without using transmit power control (TPC) techniques. The validity of the proposed procedure is corroborated by computer simulations in additive white Gaussian noise (AWGN) and frequency-nonselective fading channels. Performance results indicate that the proposed receiver outperforms the conventional receiver and, in many cases, it does so with a considerable gain.
ER -