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

香港中文大學研究人員

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摘要Mutual 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.
著者Cai R, Zhang W, Ching PC, Davidson TN, Zhang JK
會議名稱IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
會議開始日04.05.2014
會議完結日09.05.2014
會議地點Florence
會議國家/地區意大利
詳細描述organized by IEEE Signal Processing Society ,
出版年份2014
月份1
日期1
出版社IEEE
電子國際標準書號978-1-4799-2893-4
國際標準期刊號1520-6149
語言英式英語
關鍵詞interference nulling; multiple transmitting antennas; Spectrum sharing; stochastic geometry
Web of Science 學科類別Acoustics; Engineering; Engineering, Electrical & Electronic

上次更新時間 2020-20-10 於 01:27