Signal detection for space-frequency OFDM systems with quasi-orthogonal space-time block codes

L Y Song; A G Burr

Signal detection for space-frequency OFDM systems with quasi-orthogonal space-time block codes

Electronic Engineering

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

Abstract

In this paper, we use a quasi-orthogonal STBC (QO-STBC) instead of the conventional O-STBC as the inner code for OFDM MIMO systems, resulting in quasi-orthogonal space-frequency block coding (QOSFBC). Due to the effect of multi-path, the conventional signal detector in Ill will cause an irreducible error floor in the high signal-to-noise ratio (SNR) region for these new QO-SF-OFDM systems This paper addresses this issue by employing a Zero-forcing approach, which has the potential advantage of low complexity and can fully remove the error floor.

Original language	English
Title of host publication	VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS
Place of Publication	NEW YORK
Publisher	IEEE
Pages	1082-1085
Number of pages	4
ISBN (Print)	0-7803-8887-9
Publication status	Published - 2005
Event	61st IEEE Vehicular Technology Conference - Stockholm Duration: 30 May 2005 → 1 Jun 2005

Conference

Conference	61st IEEE Vehicular Technology Conference
City	Stockholm
Period	30/05/05 → 1/06/05

Keywords

space-time block codes
OFDM
space-frequency codes
WIRELESS COMMUNICATIONS

Cite this

@inproceedings{3830520e01354d919cb23928726cc256,

title = "Signal detection for space-frequency OFDM systems with quasi-orthogonal space-time block codes",

abstract = "In this paper, we use a quasi-orthogonal STBC (QO-STBC) instead of the conventional O-STBC as the inner code for OFDM MIMO systems, resulting in quasi-orthogonal space-frequency block coding (QOSFBC). Due to the effect of multi-path, the conventional signal detector in Ill will cause an irreducible error floor in the high signal-to-noise ratio (SNR) region for these new QO-SF-OFDM systems This paper addresses this issue by employing a Zero-forcing approach, which has the potential advantage of low complexity and can fully remove the error floor.",

keywords = "space-time block codes, OFDM, space-frequency codes, WIRELESS COMMUNICATIONS",

author = "Song, {L Y} and Burr, {A G}",

year = "2005",

language = "English",

isbn = "0-7803-8887-9",

pages = "1082--1085",

booktitle = "VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS",

publisher = "IEEE",

address = "United States",

note = "61st IEEE Vehicular Technology Conference ; Conference date: 30-05-2005 Through 01-06-2005",

}

TY - GEN

T1 - Signal detection for space-frequency OFDM systems with quasi-orthogonal space-time block codes

AU - Song, L Y

AU - Burr, A G

PY - 2005

Y1 - 2005

N2 - In this paper, we use a quasi-orthogonal STBC (QO-STBC) instead of the conventional O-STBC as the inner code for OFDM MIMO systems, resulting in quasi-orthogonal space-frequency block coding (QOSFBC). Due to the effect of multi-path, the conventional signal detector in Ill will cause an irreducible error floor in the high signal-to-noise ratio (SNR) region for these new QO-SF-OFDM systems This paper addresses this issue by employing a Zero-forcing approach, which has the potential advantage of low complexity and can fully remove the error floor.

AB - In this paper, we use a quasi-orthogonal STBC (QO-STBC) instead of the conventional O-STBC as the inner code for OFDM MIMO systems, resulting in quasi-orthogonal space-frequency block coding (QOSFBC). Due to the effect of multi-path, the conventional signal detector in Ill will cause an irreducible error floor in the high signal-to-noise ratio (SNR) region for these new QO-SF-OFDM systems This paper addresses this issue by employing a Zero-forcing approach, which has the potential advantage of low complexity and can fully remove the error floor.

KW - space-time block codes

KW - OFDM

KW - space-frequency codes

KW - WIRELESS COMMUNICATIONS

M3 - Conference contribution

SN - 0-7803-8887-9

SP - 1082

EP - 1085

BT - VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS

PB - IEEE

CY - NEW YORK

T2 - 61st IEEE Vehicular Technology Conference

Y2 - 30 May 2005 through 1 June 2005

ER -