Polynomial cancellation coding of OFDM to reduce intercarrier interference due to Doppler spread

Jean Armstrong, Peter M. Grant, Gordon Povey

Research output: Contribution to conferencePaperpeer-review

79 Citations (Scopus)

Abstract

Polynomial cancellation coding (PCC) is a coding method for orthogonal frequency division multiplexing (OFDM) in which the information to be transmitted is modulated onto weighted groups of subcarriers rather than onto individual subcarriers. It has previously been shown that PCC substantially reduces the sensitivity of OFDM to carrier frequency offset. In this paper, it is shown that PCC also reduces the intercareer interference (ICI) due to Doppler spread. Results are presented for a frequency non-selective i.e. flat fading channel, subject to classical Doppler spread. By using weighted pairs of subcarriers the ICI due to Doppler spread can be reduced by approximately 15dB. By using weighted groups of three subcarriers a further 15dB reduction in ICI can be achieved.

Original languageEnglish
Pages2771-2776
Number of pages6
Publication statusPublished - 1 Dec 1998
Externally publishedYes
EventIEEE Global Telecommunications Conference 1998 - Sydney, Australia
Duration: 8 Nov 199812 Nov 1998
https://ieeexplore.ieee.org/xpl/conhome/6295/proceeding (Proceedings)

Conference

ConferenceIEEE Global Telecommunications Conference 1998
Abbreviated titleIEEE GLOBECOM 1998
CountryAustralia
CitySydney
Period8/11/9812/11/98
Internet address

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