A chip-interleaved synchronous DS-CDMA technique enabling MAI-free and reduced-ISI transmission with low complexity receiving

Yu N. Lin*, David W. Lin

*Corresponding author for this work

Research output: Contribution to conferencePaper

1 Scopus citations

Abstract

The capacity of conventional direct-sequence code-division multiaccess (DS-CDMA) systems is limited by multiaccess interference (MAI) that arises from correlation among user signals, especially in multipath channels. While inducing an intersymbol-interference (ISI) problem, chip-interleaved DS-CDMA (CIDS-CDMA) can preserve the orthogonality among user signals and effect MAI-free transmission. We propose a multicode CIDS-CDMA (MCIDS-CDMA) technique which can also remove ISI in addition to MAI when a sufficient number of multicodes are assigned. This design facilitates a low complexity receiver structure. In addition, a low complexity ISI canceller can be used to deal with the residual ISI, should the number of codes be insufficient.

Original languageEnglish
Pages487-491
Number of pages5
StatePublished - 1 Dec 2004
Event2004 IEEE 5th Workshop on Signal Processing Advances in Wireless Communications, SPAWC - Lisbon, Portugal
Duration: 11 Jul 200414 Jul 2004

Conference

Conference2004 IEEE 5th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
CountryPortugal
CityLisbon
Period11/07/0414/07/04

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    Lin, Y. N., & Lin, D. W. (2004). A chip-interleaved synchronous DS-CDMA technique enabling MAI-free and reduced-ISI transmission with low complexity receiving. 487-491. Paper presented at 2004 IEEE 5th Workshop on Signal Processing Advances in Wireless Communications, SPAWC, Lisbon, Portugal.