Widely-linear filtering and non-cooperative transceiver optimization in wireless data networks

Stefano Buzzi, H. Vincent Poor, Alessio Zappone

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

2 Scopus citations

Abstract

The issue of non-cooperative transceiver optimization in the uplink of a multiuser wireless data network with widely linear detection at the receiver is considered in this paper. While previous work in this area has focused on a simple real signal model, in this paper a baseband complex representation of the data is used, so as to properly take into account the I and Q components of the received signal. For the case in which the received signal is improper, a widely-linear reception structure, processing separately the data and their complex conjugates, is considered. The convergence of the well-known minimum mean square error (MMSE) iteration for spreading code adaptation is studied for the case in which widely-linear detection is used at the receiver. Interestingly, it is also found that spreading code optimization coupled with widely-linear filtering permits supporting, with no multiuser interference, a number of users that is twice the processing gain. Numerical results corroborate the validity of the theoretical analysis, and show that exploiting the improper nature of the data in non-cooperative resource allocation brings remarkable performance improvements in multiuser wireless systems.

Original languageEnglish (US)
Title of host publicationProceedings of the 2009 International Conference on Game Theory for Networks, GameNets '09
Pages251-258
Number of pages8
DOIs
StatePublished - Oct 20 2009
Event2009 International Conference on Game Theory for Networks, GameNets '09 - Istanbul, Turkey
Duration: May 13 2009May 15 2009

Publication series

NameProceedings of the 2009 International Conference on Game Theory for Networks, GameNets '09

Other

Other2009 International Conference on Game Theory for Networks, GameNets '09
CountryTurkey
CityIstanbul
Period5/13/095/15/09

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition

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    Buzzi, S., Poor, H. V., & Zappone, A. (2009). Widely-linear filtering and non-cooperative transceiver optimization in wireless data networks. In Proceedings of the 2009 International Conference on Game Theory for Networks, GameNets '09 (pp. 251-258). [5137408] (Proceedings of the 2009 International Conference on Game Theory for Networks, GameNets '09). https://doi.org/10.1109/GAMENETS.2009.5137408