Hybrid intra-cell TDMA/Inter-cell CDMA with inter-cell interference suppression for wireless networks

Michael Honig*, Upamanyu Madhow

*Corresponding author for this work

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

3 Scopus citations


Time-Division Multiple-Access (TDMA) and Code-Division Multiple-Access (CDMA) have received much attention as potentially attractive multiple-access techniques for wireless networks, such as the future Personal Communication Network. The standard TDMA cellular network is designed so that physically adjacent cells are assigned different frequency bands, or channels, in order to reduce inter-cell interference. Here we present a multiple-access scheme in which TDMA is used inside each cell, but different transmitted pulse shapes with low cross-correlations are assigned to adjacent cells. For example, these pulses could be Direct-Sequence Spread-Spectrum pulses, which have been proposed for CDMA wireless networks. Such a hybrid system combines the high intra-cell capacity of TDMA with intercell and multipath interference rejection capabilities of CDMA. We conclude that this hybrid scheme offers a potential increase in capacity relative to intra-cell TDMA/ inter-cell Frequency-Division Multiple Access(FDMA) provided that interference suppression techniques can be used to suppress inter-cell interference. Additional advantages and disadvantages of the scheme will be discussed.

Original languageEnglish (US)
Title of host publicationIEEE Vehicular Technology Conference
PublisherPubl by IEEE
Number of pages4
ISBN (Print)078031266X
StatePublished - Jan 1 1993
EventProceedings of the 43rd IEEE Vehicular Technology Conference - Secaucus, NJ, USA
Duration: May 18 1993May 20 1993


OtherProceedings of the 43rd IEEE Vehicular Technology Conference
CitySecaucus, NJ, USA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Hybrid intra-cell TDMA/Inter-cell CDMA with inter-cell interference suppression for wireless networks'. Together they form a unique fingerprint.

Cite this