ZP-OFDM broadcasting systems with insufficient Guard Interval

Author

Zhao, Liye ; Men, Aidong

fYear

2008

fDate

25-27 May 2008

Firstpage

727

Lastpage

731

Abstract

The conventional over-lapping-add equalizer for ZP-OFDM based broadcasting systems fails to eliminate the ISI and ICI introduced by multipath propagation when the channel impulse response (CIR) length exceeds the duration of guard interval (GI). We propose, in this paper, a new equalization scheme for the suppression of insufficient GI generated interference using inherent diversity property of ZP-OFDM signal. Simulation results show that the proposed scheme can effectively recovers the contaminated ZP-OFDM signal.

Keywords

OFDM modulation; digital video broadcasting; equalisers; intercarrier interference; intersymbol interference; transient response; ZP-OFDM broadcasting system; channel impulse response; digital television terrestrial broadcasting channel; equalization scheme; guard interval; intercarrier interference; intersymbol interference; multipath propagation; over-lapping-add equalizer; Decision feedback equalizers; Digital TV; Digital video broadcasting; Fading; Frequency domain analysis; Interference suppression; Multimedia communication; OFDM; Signal generators; TV broadcasting;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Circuits and Systems, 2008. ICCCAS 2008. International Conference on

Conference_Location

Fujian

Print_ISBN

978-1-4244-2063-6

Electronic_ISBN

978-1-4244-2064-3

Type

conf

DOI

10.1109/ICCCAS.2008.4657875

Filename

4657875