Multi-user interference cancellation technique for coded OFDM-CDMA system

Taeyoon Park; Jaechul Lee; Youngshin Ahn; Seungphil Lee; Jaeho Choi

Multi-user interference cancellation technique for coded OFDM-CDMA system

Taeyoon Park^*
, Jaechul Lee
, Youngshin Ahn
, Seungphil Lee
, Jaeho Choi

^*Corresponding author for this work

Division of Electronic Engineering

Jeonbuk National University

Research output: Conference(x) › Paper › peer-review

Abstract

In a mobile communication channel, the multi-user interference is one of the major performance degradation factors, and restoring the signal-to-signal orthogonality among users is the challenging problem. As a solution to the problem, we proposed a method of combining OFDM and CDMA into a coded OFDM-CDMA system. The proposed system is equipped with a multi-user interference suppression capability based on chip-based interference cancellation and adaptive DFE equalization in series with a low-density parity checker. The performance of the proposed system is verified in a reverse-link multipath Rayleigh fading channel using computer simulation. The overall system performance has improved over a single-carrier CDMA in terms of BER vs SNR.

Original language	English
Pages	504-508
Number of pages	5
State	Published - 2002
Event	GLOBECOM'02 - IEEE Global Telecommunications Conference - Taipei, Taiwan, Province of China Duration: 2002.11.17 → 2002.11.21

Conference

Conference	GLOBECOM'02 - IEEE Global Telecommunications Conference
Country/Territory	Taiwan, Province of China
City	Taipei
Period	02.11.17 → 02.11.21

Keywords

Coded OFMD-CDMA
DFE
LDPC coding
Multi-user interference cancellation
Multipath Rayleigh fading

Quacquarelli Symonds(QS) Subject Topics

Environmental Sciences
Engineering - Electrical & Electronic
Engineering - Petroleum

Cite this

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title = "Multi-user interference cancellation technique for coded OFDM-CDMA system",

abstract = "In a mobile communication channel, the multi-user interference is one of the major performance degradation factors, and restoring the signal-to-signal orthogonality among users is the challenging problem. As a solution to the problem, we proposed a method of combining OFDM and CDMA into a coded OFDM-CDMA system. The proposed system is equipped with a multi-user interference suppression capability based on chip-based interference cancellation and adaptive DFE equalization in series with a low-density parity checker. The performance of the proposed system is verified in a reverse-link multipath Rayleigh fading channel using computer simulation. The overall system performance has improved over a single-carrier CDMA in terms of BER vs SNR.",

keywords = "Coded OFMD-CDMA, DFE, LDPC coding, Multi-user interference cancellation, Multipath Rayleigh fading",

author = "Taeyoon Park and Jaechul Lee and Youngshin Ahn and Seungphil Lee and Jaeho Choi",

year = "2002",

language = "English",

pages = "504--508",

note = "GLOBECOM'02 - IEEE Global Telecommunications Conference ; Conference date: 17-11-2002 Through 21-11-2002",

}

TY - CONF

T1 - Multi-user interference cancellation technique for coded OFDM-CDMA system

AU - Park, Taeyoon

AU - Lee, Jaechul

AU - Ahn, Youngshin

AU - Lee, Seungphil

AU - Choi, Jaeho

PY - 2002

Y1 - 2002

N2 - In a mobile communication channel, the multi-user interference is one of the major performance degradation factors, and restoring the signal-to-signal orthogonality among users is the challenging problem. As a solution to the problem, we proposed a method of combining OFDM and CDMA into a coded OFDM-CDMA system. The proposed system is equipped with a multi-user interference suppression capability based on chip-based interference cancellation and adaptive DFE equalization in series with a low-density parity checker. The performance of the proposed system is verified in a reverse-link multipath Rayleigh fading channel using computer simulation. The overall system performance has improved over a single-carrier CDMA in terms of BER vs SNR.

AB - In a mobile communication channel, the multi-user interference is one of the major performance degradation factors, and restoring the signal-to-signal orthogonality among users is the challenging problem. As a solution to the problem, we proposed a method of combining OFDM and CDMA into a coded OFDM-CDMA system. The proposed system is equipped with a multi-user interference suppression capability based on chip-based interference cancellation and adaptive DFE equalization in series with a low-density parity checker. The performance of the proposed system is verified in a reverse-link multipath Rayleigh fading channel using computer simulation. The overall system performance has improved over a single-carrier CDMA in terms of BER vs SNR.

KW - Coded OFMD-CDMA

KW - DFE

KW - LDPC coding

KW - Multi-user interference cancellation

KW - Multipath Rayleigh fading

UR - https://www.scopus.com/pages/publications/0036967446

M3 - Paper

AN - SCOPUS:0036967446

SP - 504

EP - 508

T2 - GLOBECOM'02 - IEEE Global Telecommunications Conference

Y2 - 17 November 2002 through 21 November 2002

ER -

Multi-user interference cancellation technique for coded OFDM-CDMA system

Abstract

Conference

Keywords

Quacquarelli Symonds(QS) Subject Topics

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