Enhanced performance for an approximately M AI-free multiaccess OFDM transceiver by code selection

Shang-Ho Tsai; Yuan-Pei Lin; C. C. Jay Kuo

doi:10.1109/VETECF.2004.1404897

Enhanced performance for an approximately M AI-free multiaccess OFDM transceiver by code selection

Shang-Ho Tsai^*, Yuan-Pei Lin, C. C. Jay Kuo

^*Corresponding author for this work

Department of Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

4 Scopus citations

Abstract

A new code selection scheme is proposed to reduce the MAI of an approximately MAI-free OFDM transceiver that is known as the repetitively coded multi-carrier CDMA (RCMC-CDMA) in this work. That is, if we use M/2 symmetric codewords or anti-symmetric codewords of the M Hadamard-Walsh codes, the MAI of the system can be greatly reduced. With this code selection scheme, the requirement of a sufficiently large number of subchannels to achieve the MAI-free property can be relaxed so that the approximately MAI-free property still holds when the number of subchannels is relatively small.

Original language	English
Pages (from-to)	4335-4339
Number of pages	5
Journal	IEEE Vehicular Technology Conference
Volume	60
Issue number	6
DOIs	https://doi.org/10.1109/VETECF.2004.1404897
State	Published - 2004
Event	2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States Duration: 26 Sep 2004 → 29 Sep 2004

Keywords

Codeword selection
MAI-free
Multiaccess OFDM
OFDMA
RCMC-CDMA

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10.1109/VETECF.2004.1404897

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title = "Enhanced performance for an approximately M AI-free multiaccess OFDM transceiver by code selection",

abstract = "A new code selection scheme is proposed to reduce the MAI of an approximately MAI-free OFDM transceiver that is known as the repetitively coded multi-carrier CDMA (RCMC-CDMA) in this work. That is, if we use M/2 symmetric codewords or anti-symmetric codewords of the M Hadamard-Walsh codes, the MAI of the system can be greatly reduced. With this code selection scheme, the requirement of a sufficiently large number of subchannels to achieve the MAI-free property can be relaxed so that the approximately MAI-free property still holds when the number of subchannels is relatively small.",

keywords = "Codeword selection, MAI-free, Multiaccess OFDM, OFDMA, RCMC-CDMA",

author = "Shang-Ho Tsai and Yuan-Pei Lin and {Jay Kuo}, {C. C.}",

year = "2004",

doi = "10.1109/VETECF.2004.1404897",

language = "English",

volume = "60",

pages = "4335--4339",

journal = "IEEE Vehicular Technology Conference",

issn = "1550-2252",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "6",

note = "2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security ; Conference date: 26-09-2004 Through 29-09-2004",

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T1 - Enhanced performance for an approximately M AI-free multiaccess OFDM transceiver by code selection

AU - Tsai, Shang-Ho

AU - Lin, Yuan-Pei

AU - Jay Kuo, C. C.

PY - 2004

Y1 - 2004

N2 - A new code selection scheme is proposed to reduce the MAI of an approximately MAI-free OFDM transceiver that is known as the repetitively coded multi-carrier CDMA (RCMC-CDMA) in this work. That is, if we use M/2 symmetric codewords or anti-symmetric codewords of the M Hadamard-Walsh codes, the MAI of the system can be greatly reduced. With this code selection scheme, the requirement of a sufficiently large number of subchannels to achieve the MAI-free property can be relaxed so that the approximately MAI-free property still holds when the number of subchannels is relatively small.

AB - A new code selection scheme is proposed to reduce the MAI of an approximately MAI-free OFDM transceiver that is known as the repetitively coded multi-carrier CDMA (RCMC-CDMA) in this work. That is, if we use M/2 symmetric codewords or anti-symmetric codewords of the M Hadamard-Walsh codes, the MAI of the system can be greatly reduced. With this code selection scheme, the requirement of a sufficiently large number of subchannels to achieve the MAI-free property can be relaxed so that the approximately MAI-free property still holds when the number of subchannels is relatively small.

KW - Codeword selection

KW - MAI-free

KW - Multiaccess OFDM

KW - OFDMA

KW - RCMC-CDMA

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DO - 10.1109/VETECF.2004.1404897

M3 - Conference article

AN - SCOPUS:17144396669

SN - 1550-2252

VL - 60

SP - 4335

EP - 4339

JO - IEEE Vehicular Technology Conference

JF - IEEE Vehicular Technology Conference

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T2 - 2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security

Y2 - 26 September 2004 through 29 September 2004

ER -

Enhanced performance for an approximately M AI-free multiaccess OFDM transceiver by code selection

Abstract

Keywords

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