PERFORMANCE OF PARTIAL ZERO-FORCING BEAMFORMING IN LARGE RANDOM SPECTRUM SHARING NETWORKS
Refereed conference paper presented and published in conference proceedings


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AbstractMutual interference is the main bottleneck on the throughput of large random spectrum sharing networks. This work examines the extent to which the performance of such networks can be improved by employing multiple transmitting antennas, without degrading the average performance of individual users. By extending partial zero-forcing beamforming to spectrum sharing networks, the aggregate interference towards primary receivers is reduced, and the desired signals at both primary and secondary receivers are boosted. Considering randomly distributed users and spatially independent Rayleigh fading channels, this work provides upper and lower bounds on the maximum permissible density of secondary transmitters with respect to the numbers of primary and secondary transmitting antennas. The simulation results show that substantial increase in the density of secondary transmitters can be obtained while meeting the outage requirements of the spectrum sharing users.
All Author(s) ListCai R, Zhang W, Ching PC, Davidson TN, Zhang JK
Name of ConferenceIEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Start Date of Conference04/05/2014
End Date of Conference09/05/2014
Place of ConferenceFlorence
Country/Region of ConferenceItaly
Detailed descriptionorganized by IEEE Signal Processing Society ,
Year2014
Month1
Day1
PublisherIEEE
eISBN978-1-4799-2893-4
ISSN1520-6149
LanguagesEnglish-United Kingdom
Keywordsinterference nulling; multiple transmitting antennas; Spectrum sharing; stochastic geometry
Web of Science Subject CategoriesAcoustics; Engineering; Engineering, Electrical & Electronic

Last updated on 2020-30-11 at 00:42