Diversity performance of interleaved spread spectrum OFDM signals over frequency selective multipath fading channels

Tu Pingzhou*, Huang Xiaojing, Eryk Dutkiewicz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

5 Citations (Scopus)

Abstract

In this paper we propose an interleaved spread spectrum orthogonal frequency division multiplexing (ISS-OFDM) system for achieving both frequency diversity and time diversity and investigate the system performance over frequency selective fading channels. The purpose is to exploit the diversity capability of OFDM systems, develop efficienct spectrum spreading technique and improve the system performance against frequency selective channel fading. At the transmitter, the ISS-OFDM signal is generated by employing spread spectrum modulation and interleaving techniques. At the receiver, the received signals are combined by using maximum ratio combining (MRC) technique. The simulation indicates that the ISS-OFDM system has improved performance in multipath fading channels. Another unique characteristic is that the spectrum spreading factor and diversity order provided by the system are reconfigurable to achieve cognitive communications.

Original languageEnglish
Title of host publicationISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages184-189
Number of pages6
ISBN (Print)1424409772, 9781424409778
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventISCIT 2007 - 2007 International Symposium on Communications and Information Technologies - Sydney, Australia
Duration: 16 Oct 200719 Oct 2007

Other

OtherISCIT 2007 - 2007 International Symposium on Communications and Information Technologies
CountryAustralia
CitySydney
Period16/10/0719/10/07

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