Measurements of parameter imbalances in OFDM-based WLAN

Author

You, Young-Hwan ; Jeon, Won-Gi ; Song, Hyoung-Kyu

Author_Institution

Dept. of Internet Eng., Sejong Univ., Seoul, South Korea

Volume

49

Issue

2

fYear

2003

fDate

5/1/2003 12:00:00 AM

Firstpage

296

Lastpage

301

Abstract

We measure the effect of an imperfect channel estimation and carrier frequency offset on the performance of an OFDM-based wireless local area network (WLAN) system. For the performance evaluation, the average bit error rate (BER) expression is derived in the presence of imperfect channel information, including both inherent estimation error and imperfect windowing error, derived in a mismatched channel separation. From numerical results, the inherent channel estimation error is found to be a dominating term in the system performance, compared to the other imperfections. The provided results work for the performance evaluation of the OFDM-based WLAN physical layer (PHY).

Keywords

OFDM modulation; channel estimation; error statistics; wireless LAN; BER; OFDM; PHY; WLAN; bit error rate; carrier frequency offset; channel estimation; estimation error; imperfect channel information; mismatched channel separation; parameter imbalances; physical layer; windowing error; wireless LAN; wireless local area network; Additive noise; Bit error rate; Channel estimation; Estimation error; Frequency estimation; MIMO; OFDM; Physical layer; Receiving antennas; Wireless LAN;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/TCE.2003.1209517

Filename

1209517