Effects of virtual carriers of channel estimation for OFDM systems with transmit diversity

Yi Wang; Bo Tan; Xiaofeng Tao; Ping Zhang

doi:10.1109/VETECS.2008.244

Effects of virtual carriers of channel estimation for OFDM systems with transmit diversity

Yi Wang, Bo Tan, Xiaofeng Tao, Ping Zhang

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

2 Citations (Scopus)

Abstract

In this paper, the performance of Discrete Fourier Transform (DFT) based channel estimation (CE) for orthogonal frequency division multiplexing (OFDM) systems with transmit antenna diversity is analyzed. Conventional DFT-based CE suffers from the dispersive distortion of an estimated channel impulse response (CIR) due to the existence of virtual carriers (VCs). We analyze the mean squared error (MSE) performance and provide a concise expression which reveals the leakage effect due to VCs. Further, analytical expression for bit error rate (BER) with the effect of VCs is also derived. Simulation results illustrate the accuracy of the theoretical analysis.

Original language	English
Title of host publication	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Publisher	IEEE
Pages	1152-1156
Number of pages	5
ISBN (Electronic)	978-1-4244-1645-5
ISBN (Print)	978-1-4244-1644-8
DOIs	https://doi.org/10.1109/VETECS.2008.244
Publication status	Published - 2008
Externally published	Yes
Event	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, Singapore Duration: 11 May 2008 → 14 May 2008

Conference

Conference	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Country/Territory	Singapore
City	Marina Bay
Period	11/05/08 → 14/05/08

Keywords

Channel estimation
Orthogonal frequency division multiplexing
Transmit diversity
Virtual carrier

ASJC Scopus subject areas

Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1109/VETECS.2008.244

Cite this

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title = "Effects of virtual carriers of channel estimation for OFDM systems with transmit diversity",

abstract = "In this paper, the performance of Discrete Fourier Transform (DFT) based channel estimation (CE) for orthogonal frequency division multiplexing (OFDM) systems with transmit antenna diversity is analyzed. Conventional DFT-based CE suffers from the dispersive distortion of an estimated channel impulse response (CIR) due to the existence of virtual carriers (VCs). We analyze the mean squared error (MSE) performance and provide a concise expression which reveals the leakage effect due to VCs. Further, analytical expression for bit error rate (BER) with the effect of VCs is also derived. Simulation results illustrate the accuracy of the theoretical analysis.",

keywords = "Channel estimation, Orthogonal frequency division multiplexing, Transmit diversity, Virtual carrier",

author = "Yi Wang and Bo Tan and Xiaofeng Tao and Ping Zhang",

year = "2008",

doi = "10.1109/VETECS.2008.244",

language = "English",

isbn = "978-1-4244-1644-8",

pages = "1152--1156",

booktitle = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC",

publisher = "IEEE",

address = "United States",

note = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC ; Conference date: 11-05-2008 Through 14-05-2008",

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TY - GEN

T1 - Effects of virtual carriers of channel estimation for OFDM systems with transmit diversity

AU - Wang, Yi

AU - Tan, Bo

AU - Tao, Xiaofeng

AU - Zhang, Ping

PY - 2008

Y1 - 2008

N2 - In this paper, the performance of Discrete Fourier Transform (DFT) based channel estimation (CE) for orthogonal frequency division multiplexing (OFDM) systems with transmit antenna diversity is analyzed. Conventional DFT-based CE suffers from the dispersive distortion of an estimated channel impulse response (CIR) due to the existence of virtual carriers (VCs). We analyze the mean squared error (MSE) performance and provide a concise expression which reveals the leakage effect due to VCs. Further, analytical expression for bit error rate (BER) with the effect of VCs is also derived. Simulation results illustrate the accuracy of the theoretical analysis.

AB - In this paper, the performance of Discrete Fourier Transform (DFT) based channel estimation (CE) for orthogonal frequency division multiplexing (OFDM) systems with transmit antenna diversity is analyzed. Conventional DFT-based CE suffers from the dispersive distortion of an estimated channel impulse response (CIR) due to the existence of virtual carriers (VCs). We analyze the mean squared error (MSE) performance and provide a concise expression which reveals the leakage effect due to VCs. Further, analytical expression for bit error rate (BER) with the effect of VCs is also derived. Simulation results illustrate the accuracy of the theoretical analysis.

KW - Channel estimation

KW - Orthogonal frequency division multiplexing

KW - Transmit diversity

KW - Virtual carrier

UR - http://www.scopus.com/inward/record.url?scp=47749150355&partnerID=8YFLogxK

U2 - 10.1109/VETECS.2008.244

DO - 10.1109/VETECS.2008.244

M3 - Conference proceeding

AN - SCOPUS:47749150355

SN - 978-1-4244-1644-8

SP - 1152

EP - 1156

BT - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC

PB - IEEE

T2 - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC

Y2 - 11 May 2008 through 14 May 2008

ER -

Effects of virtual carriers of channel estimation for OFDM systems with transmit diversity

Abstract

Conference

Keywords

ASJC Scopus subject areas

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