A pseudo random postfix OFDM modulator and inherent channel estimation techniques

Author

Muck, Markus ; De Courville, Marc ; Debbah, Merouane ; Duhamel, Pierre

Author_Institution

Motorola Labs, Espace Technologique, Gif-sur-Yvette, France

Volume

4

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

2380

Abstract

The paper details a new OFDM modulator based on the use of a pseudo random postfix (PRP-OFDM) and low complexity equalization architectures. The main advantage of this new modulation scheme is the ability to estimate and track channel variations blindly using order one statistics of the received signal. This scheme is thus very well suited in the presence of large Doppler spreads where channel tracking becomes essential. Moreover, the proposal of various equalization structures, derived from the zero padded transmission schemes, allows implementations ranging from low-complexity/medium performance to increased-complexity/high performance.

Keywords

Doppler broadening; OFDM modulation; channel estimation; computational complexity; equalisers; mobile radio; signal processing; statistical analysis; Doppler spread; channel estimation; channel tracking; equalization; order one statistics; pseudo random postfix OFDM modulator; signal processing; zero padded transmission; Broadband communication; Channel estimation; Convolution; Digital audio broadcasting; Digital video broadcasting; Filtering theory; OFDM modulation; Proposals; Statistics; Wireless LAN;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258661

Filename

1258661