Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design

Layla Tadjpour; Shang-Ho Tsai; C. C.Jay Kuo

doi:10.1109/ACSSC.2005.1600006

Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design

Layla Tadjpour^*, Shang-Ho Tsai, C. C.Jay Kuo

^*Corresponding author for this work

Department of Electrical and Computer Engineering

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

Abstract

A new multiuser OFDM transceiver with preceding was introduced by Tsai, Lin and Kuo in [8]. The system can reduce multiaccess interference (MAI) due to the carrier frequency offset (CFO) to a negligible amount by the use of even or odd Hadamard-Walsh codewords. The performance of this system in a mobile environment, where the channel response varies within one OFDM symbol due to the Doppler effect, is evaluated in this work. It is shown that the use of even or odd Hadamard-Walsh codewords can greatly reduce the MAI due to the Doppler effect as well. It is also demonstrated by simulations that all Hadamard-Walsh codes except for the all-one code result in considerable suppression of ICI due to the Doppler effect. Finally, we show that the new system with odd Hadamard-Walsh codes outperforms a half-loaded OFDMA system in a mobile channel environment.

Original language	English
Title of host publication	Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers
Pages	1451-1455
Number of pages	5
DOIs	https://doi.org/10.1109/ACSSC.2005.1600006
State	Published - 1 Dec 2005
Event	39th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: 28 Oct 2005 → 1 Nov 2005

Publication series

Name	Conference Record - Asilomar Conference on Signals, Systems and Computers
Volume	2005
ISSN (Print)	1058-6393

Conference

Conference	39th Asilomar Conference on Signals, Systems and Computers
Country/Territory	United States
City	Pacific Grove, CA
Period	28/10/05 → 1/11/05

Access to Document

10.1109/ACSSC.2005.1600006

Cite this

Tadjpour, L., Tsai, S.-H., & Kuo, C. C. J. (2005). Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design. In Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers (pp. 1451-1455). Article 1600006 (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2005). https://doi.org/10.1109/ACSSC.2005.1600006

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title = "Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design",

abstract = "A new multiuser OFDM transceiver with preceding was introduced by Tsai, Lin and Kuo in [8]. The system can reduce multiaccess interference (MAI) due to the carrier frequency offset (CFO) to a negligible amount by the use of even or odd Hadamard-Walsh codewords. The performance of this system in a mobile environment, where the channel response varies within one OFDM symbol due to the Doppler effect, is evaluated in this work. It is shown that the use of even or odd Hadamard-Walsh codewords can greatly reduce the MAI due to the Doppler effect as well. It is also demonstrated by simulations that all Hadamard-Walsh codes except for the all-one code result in considerable suppression of ICI due to the Doppler effect. Finally, we show that the new system with odd Hadamard-Walsh codes outperforms a half-loaded OFDMA system in a mobile channel environment.",

author = "Layla Tadjpour and Shang-Ho Tsai and Kuo, {C. C.Jay}",

year = "2005",

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doi = "10.1109/ACSSC.2005.1600006",

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series = "Conference Record - Asilomar Conference on Signals, Systems and Computers",

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note = "39th Asilomar Conference on Signals, Systems and Computers ; Conference date: 28-10-2005 Through 01-11-2005",

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Tadjpour, L, Tsai, S-H & Kuo, CCJ 2005, Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design. in Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers., 1600006, Conference Record - Asilomar Conference on Signals, Systems and Computers, vol. 2005, pp. 1451-1455, 39th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, United States, 28/10/05. https://doi.org/10.1109/ACSSC.2005.1600006

Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design. / Tadjpour, Layla; Tsai, Shang-Ho; Kuo, C. C.Jay.
Conference Record of The Thirty-Ninth Asilomar Conference on Signals, Systems and Computers. 2005. p. 1451-1455 1600006 (Conference Record - Asilomar Conference on Signals, Systems and Computers; Vol. 2005).

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

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Mobile multiuser access with approximately MAI-free PMU-OFDM transceiver design

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