On the effects of spreading sequences over MIMO systems

Tinale Liu, David Stirling, Le Chung Tran, Tad Wysocki, Beata Wysocki, Prashan Dissanayake Mudiyanselage, Peter James Vial

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

1 Scopus citations

Abstract

In this paper, we develop a Software Defined Radio (SDR) test bed to evaluate the Multiple Access Interference (MAI) effects over SISO and 2×MIMO systems. It can be observed that under asynchronous transmissions, the Gold code leads to the best performance over both systems due to the fact that it has the best correlation properties. We also find the MAI effects in terms of the spreading sequences pairs on MIMO-STS systems. We propose a criterion for selecting promising spreading sequences for MIMO systems. Based on the measured results, we identify pairs of spreading sequences which have improved BER compared to other pairs in the same set of spreading sequences. We infer that the choice of spreading sequence pairs in a MIMO-STS system in the presence of MAI sources is an important factor to be considered.

Original languageEnglish (US)
Title of host publication2013, 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013 - Proceedings
PublisherIEEE Computer Society
ISBN (Print)9781479913190
DOIs
StatePublished - Jan 1 2013
Event2013 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013 - Gold Coast, QLD, Australia
Duration: Dec 16 2013Dec 18 2013

Publication series

Name2013, 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013 - Proceedings

Other

Other2013 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013
CountryAustralia
CityGold Coast, QLD
Period12/16/1312/18/13

Keywords

  • MAI
  • MIMO
  • SDR
  • pairs
  • spreading sequences

ASJC Scopus subject areas

  • Signal Processing

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  • Cite this

    Liu, T., Stirling, D., Tran, L. C., Wysocki, T., Wysocki, B., Mudiyanselage, P. D., & Vial, P. J. (2013). On the effects of spreading sequences over MIMO systems. In 2013, 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013 - Proceedings [6723915] (2013, 7th International Conference on Signal Processing and Communication Systems, ICSPCS 2013 - Proceedings). IEEE Computer Society. https://doi.org/10.1109/ICSPCS.2013.6723915