Performance of multiresolution OFDM on frequency-selective fading channels

Author

Kim, Dongkyu ; Stuber, Gordon L.

Author_Institution

Lucent Technol., Atlanta, GA

Volume

48

Issue

5

fYear

1999

fDate

9/1/1999 12:00:00 AM

Firstpage

1740

Lastpage

1746

Abstract

Several multiresolution modulation (MRM) schemes with orthogonal frequency division multiplexing (OFDM) are examined. The effect of interchannel interference (ICI) caused by channel time variation and carrier frequency offset is considered. The performances of the multiresolution schemes for both uncoded and trellis-coded systems are evaluated in terms of their bit error rate (BER), degree of prioritization, and decoding complexity. Finally, applications to high-definition television (HDTV) broadcasting are considered, where a concatenated coding scheme is employed to provide the required performance levels

Keywords

OFDM modulation; adjacent channel interference; computational complexity; concatenated codes; decoding; error statistics; fading channels; high definition television; time-varying channels; trellis coded modulation; video coding; BER; HDTV broadcasting; ICI; OFDM; bit error rate; carrier frequency offset; channel time variation; concatenated coding scheme; decoding complexity; frequency-selective fading channels; high-definition television; interchannel interference; multiresolution OFDM; multiresolution modulation; orthogonal frequency division multiplexing; performances; prioritization; trellis-coded systems; uncoded systems; AWGN; Antennas and propagation; Bit error rate; Concatenated codes; Frequency-selective fading channels; HDTV; Interchannel interference; OFDM modulation; Signal resolution; TV broadcasting;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.790560

Filename

790560