A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications

Defeng Huang, Khaled Letaief

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

Orthogonal frequency division multiplexing (OFDM) has been recently receiving significant attention because of its spectrum efficiency and ability in providing reliable wideband wireless data access. Multiple transmit and/or multiple receive (MIMO) antennas can be employed with OFDM to better trade off frequency efficiency and power efficiency. In this paper, we study a coded OFDM (COFDM) system with MIMO antennas for high-rate wireless data transmission. To take advantage of the inherent space diversity, we propose a symbol-based space combining technique, which can be implemented using only one Fast Fourier Transform (FFT) block and the same weighting coefficients for the whole OFDM symbol. Thus, in contrast to conventional sub-carrier baseds pace combining, the system complexity is significantly reduced while almost the same diversity order is achieved. Furthermore, it is shown that the proposed technique is not sensitive to channel variations when used in reciprocal channels such as that in a time division duplex (TDD) scenario.

Original languageEnglish
Title of host publicationConference Record / IEEE Global Telecommunications Conference
Pages661-665
Number of pages5
Volume1
Publication statusPublished - 2002
Externally publishedYes
EventGLOBECOM'02 - IEEE Global Telecommunications Conference - Taipei, Taiwan, Province of China
Duration: 17 Nov 200221 Nov 2002

Other

OtherGLOBECOM'02 - IEEE Global Telecommunications Conference
CountryTaiwan, Province of China
CityTaipei
Period17/11/0221/11/02

Fingerprint

MIMO systems
Orthogonal frequency division multiplexing
antenna
communication
Antennas
data transmission
duplex
Communication
trade-off
Fourier transform
Fast Fourier transforms
Data communication systems
rate

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Global and Planetary Change

Cite this

Huang, D., & Letaief, K. (2002). A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications. In Conference Record / IEEE Global Telecommunications Conference (Vol. 1, pp. 661-665)

A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications. / Huang, Defeng; Letaief, Khaled.

Conference Record / IEEE Global Telecommunications Conference. Vol. 1 2002. p. 661-665.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Huang, D & Letaief, K 2002, A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications. in Conference Record / IEEE Global Telecommunications Conference. vol. 1, pp. 661-665, GLOBECOM'02 - IEEE Global Telecommunications Conference, Taipei, Taiwan, Province of China, 17/11/02.
Huang D, Letaief K. A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications. In Conference Record / IEEE Global Telecommunications Conference. Vol. 1. 2002. p. 661-665
Huang, Defeng ; Letaief, Khaled. / A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications. Conference Record / IEEE Global Telecommunications Conference. Vol. 1 2002. pp. 661-665
@inproceedings{aa3715a395194739a7d6f70d06ccc5fa,
title = "A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications",
abstract = "Orthogonal frequency division multiplexing (OFDM) has been recently receiving significant attention because of its spectrum efficiency and ability in providing reliable wideband wireless data access. Multiple transmit and/or multiple receive (MIMO) antennas can be employed with OFDM to better trade off frequency efficiency and power efficiency. In this paper, we study a coded OFDM (COFDM) system with MIMO antennas for high-rate wireless data transmission. To take advantage of the inherent space diversity, we propose a symbol-based space combining technique, which can be implemented using only one Fast Fourier Transform (FFT) block and the same weighting coefficients for the whole OFDM symbol. Thus, in contrast to conventional sub-carrier baseds pace combining, the system complexity is significantly reduced while almost the same diversity order is achieved. Furthermore, it is shown that the proposed technique is not sensitive to channel variations when used in reciprocal channels such as that in a time division duplex (TDD) scenario.",
author = "Defeng Huang and Khaled Letaief",
year = "2002",
language = "English",
volume = "1",
pages = "661--665",
booktitle = "Conference Record / IEEE Global Telecommunications Conference",

}

TY - GEN

T1 - A reduced complexity coded OFDM system with MIMO antennas for broadband wireless communications

AU - Huang, Defeng

AU - Letaief, Khaled

PY - 2002

Y1 - 2002

N2 - Orthogonal frequency division multiplexing (OFDM) has been recently receiving significant attention because of its spectrum efficiency and ability in providing reliable wideband wireless data access. Multiple transmit and/or multiple receive (MIMO) antennas can be employed with OFDM to better trade off frequency efficiency and power efficiency. In this paper, we study a coded OFDM (COFDM) system with MIMO antennas for high-rate wireless data transmission. To take advantage of the inherent space diversity, we propose a symbol-based space combining technique, which can be implemented using only one Fast Fourier Transform (FFT) block and the same weighting coefficients for the whole OFDM symbol. Thus, in contrast to conventional sub-carrier baseds pace combining, the system complexity is significantly reduced while almost the same diversity order is achieved. Furthermore, it is shown that the proposed technique is not sensitive to channel variations when used in reciprocal channels such as that in a time division duplex (TDD) scenario.

AB - Orthogonal frequency division multiplexing (OFDM) has been recently receiving significant attention because of its spectrum efficiency and ability in providing reliable wideband wireless data access. Multiple transmit and/or multiple receive (MIMO) antennas can be employed with OFDM to better trade off frequency efficiency and power efficiency. In this paper, we study a coded OFDM (COFDM) system with MIMO antennas for high-rate wireless data transmission. To take advantage of the inherent space diversity, we propose a symbol-based space combining technique, which can be implemented using only one Fast Fourier Transform (FFT) block and the same weighting coefficients for the whole OFDM symbol. Thus, in contrast to conventional sub-carrier baseds pace combining, the system complexity is significantly reduced while almost the same diversity order is achieved. Furthermore, it is shown that the proposed technique is not sensitive to channel variations when used in reciprocal channels such as that in a time division duplex (TDD) scenario.

UR - http://www.scopus.com/inward/record.url?scp=0036967266&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0036967266&partnerID=8YFLogxK

M3 - Conference contribution

VL - 1

SP - 661

EP - 665

BT - Conference Record / IEEE Global Telecommunications Conference

ER -