Low-complexity decision directed method for carrier frequency offset estimation of IEEE 802.11ad

Author

Junghyun Ha ; Janghyuk Yoon ; Ik-Joon Chang ; Jinsang Kim

Author_Institution

Dept. of Electron. & Radio Eng., Kyung Hee Univ., Yongin, South Korea

fYear

2013

fDate

19-23 May 2013

Firstpage

2163

Lastpage

2166

Abstract

In this paper, a new carrier frequency offset (CFO) estimation algorithm is proposed for MIMO-OFDM based wireless local area network (WLAN) systems, IEEE 802.11ad. The existing hardware-efficient auto-correlation scheme which subsamples the short train symbol can be used for low-complexity. However this method has a limitation of performance degradation. Therefore, we combine the subsampled auto-correlation scheme in a decision-directed (DD) method for the performance improvement. We show that the proposed scheme improves BER performance about 3dB with reasonable complexity increase.

Keywords

MIMO communication; OFDM modulation; correlation methods; error statistics; wireless LAN; BER; CFO; DD; IEEE 802.11ad standard; MIMO-OFDM; WLAN; carrier frequency offset estimation; hardware-efficient autocorrelation scheme; low-complexity decision directed method; short train symbol subsampling; wireless local area network system; Algorithm design and analysis; Complexity theory; Correlation; Estimation; OFDM; Synchronization; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems (ISCAS), 2013 IEEE International Symposium on

Conference_Location

Beijing

ISSN

0271-4302

Print_ISBN

978-1-4673-5760-9

Type

conf

DOI

10.1109/ISCAS.2013.6572303

Filename

6572303