Pulse-shaping for blind multi-user separation in distributed MISO configurations

Athina P. Petropulu, Marc Olivieri, Yuanning Yu, Lun Dong, Alex Lackpour

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

6 Scopus citations

Abstract

We consider a wireless system where users are equipped with one antenna each, and the antennas are spatially distributed and not physically connected. Multiple users transmit simultaneously narrowband signals using the same carrier frequency, each one using a distinct pulse shaping function with fixed bandwidth and time duration. We show that the diversity provided by the different pulse shaping functions as well as user delays and carrier frequency offsets between transmit antennas and receiver enables user separation and recovery of transmitted signals in a blind fashion, i.e., without the need for transmission of pilot symbols. The received base-band signal is over-sampled and its polyphase components are viewed as the outputs of a virtual MIMO system. The user signals are recovered through blind MIMO system estimation and equalization.

Original languageEnglish (US)
Title of host publication2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Pages2741-2744
Number of pages4
DOIs
StatePublished - 2008
Externally publishedYes
Event2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP - Las Vegas, NV, United States
Duration: Mar 31 2008Apr 4 2008

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Other

Other2008 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP
Country/TerritoryUnited States
CityLas Vegas, NV
Period3/31/084/4/08

All Science Journal Classification (ASJC) codes

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

Keywords

  • Blind MIMO system identification
  • Carrier frequency offset
  • Distributed antenna systems
  • Multi-user systems

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