A model based channel shortening technique for IEEE 802.11a OFDM system

Author

Patidar, Pravin ; Vijaykumar, C.

Author_Institution

Dhirubhai Ambani Institue of Inf. & Commun. Technol., Gandhinagar

fYear

2007

fDate

Oct. 30 2007-Nov. 2 2007

Firstpage

1

Lastpage

4

Abstract

A new computationally efficient channel shortening technique, to make the OFDM systems robust for delay spreads exceeding the cyclic prefix is presented. The proposed technique gives same BER performance with shorter equalizer. The method is based on pole-zero modeling of the channel impulse response. This gives low computational complexity, both during initialization and data transmission. Moreover no delay search is required as compared with other methods. IEEE 802.11a is considered as underlying OFDM system.

Keywords

IEEE standards; OFDM modulation; computational complexity; data communication; error statistics; poles and zeros; transient response; wireless LAN; BER performance; IEEE 802.11a; OFDM system; channel impulse response; channel shortening; cyclic prefix; data transmission; low computational complexity; pole zero; shorter equalizer; Bit error rate; Communications technology; Computational complexity; Data communication; Delay; Digital video broadcasting; Equalizers; Fading; OFDM; Robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2007 - 2007 IEEE Region 10 Conference

Conference_Location

Taipei

Print_ISBN

978-1-4244-1272-3

Electronic_ISBN

978-1-4244-1272-3

Type

conf

DOI

10.1109/TENCON.2007.4429029

Filename

4429029