Uplink interference analysis of LMDS networks applying CDMA with interference cancellation

Csaba Novák, Dávid Tóth, János Bitó

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

1 Citation (Scopus)

Abstract

Local Multipoint Distribution Service (LMDS) is an emerging technology among broadband point-to-multipoint (PMP) wireless networks. The most critical point in designing LMDS networks is interference. Dominant access methods are FDMA and TDMA in LMDS, whereas CDMA received less attention. In this paper our aim is to demonstrate the feasibility of applying CDMA in LMDS networks with exploiting the results of research activities in CDMA interference suppression (e.g. multiuser detection). Uplink direction is the bottleneck of cellular PMP networks in terms of interference. Therefore, we analyzed uplink interference in CDMA-based LMDS networks. Frequency-sectorized TDMA uplink interference scenarios were compared to those of CDMA using single user detector (matched filter) and multiuser detection algorithms i.e. parallel interference cancellation (PIC) and successive interference cancellation (SIC). Uplink investigations of an LMDS sector by carrier to interference ratio (C/I) maps and BER vs. SNR simulations are presented.

Original languageEnglish
Title of host publication2002 IEEE 7th International Symposium on Spread Spectrum Techniques and Applications, IEEE ISSSTA 2002 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages288-292
Number of pages5
ISBN (Electronic)0780376277
DOIs
Publication statusPublished - Jan 1 2002
Event7th IEEE International Symposium on Spread Spectrum Techniques and Applications, IEEE ISSSTA 2002 - Prague, Czech Republic
Duration: Sep 2 2002Sep 5 2002

Publication series

NameIEEE International Symposium on Spread Spectrum Techniques and Applications
Volume1

Other

Other7th IEEE International Symposium on Spread Spectrum Techniques and Applications, IEEE ISSSTA 2002
CountryCzech Republic
CityPrague
Period9/2/029/5/02

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

Novák, C., Tóth, D., & Bitó, J. (2002). Uplink interference analysis of LMDS networks applying CDMA with interference cancellation. In 2002 IEEE 7th International Symposium on Spread Spectrum Techniques and Applications, IEEE ISSSTA 2002 - Proceedings (pp. 288-292). [1049332] (IEEE International Symposium on Spread Spectrum Techniques and Applications; Vol. 1). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISSSTA.2002.1049332