Opportunistic user scheduling in MIMO cognitive radio networks
Refereed conference paper presented and published in conference proceedings

香港中文大學研究人員
替代計量分析
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其它資訊
摘要This paper studies multiuser diversity of uplink MIMO cognitive radio network and proposes a two-stage opportunistic user scheduling scheme. In the first stage, a cognitive beamforming design is proposed to ensure the interference caused by secondary signals is canceled or minimized on the spatial dimensions occupied by primary MIMO system. Then, some secondary users that cause minimal interference leakage at primary system are pre-selected as candidate users. In the second stage, some candidate users that produce maximum sum secondary rate are further selected for uplink scheduling. The proposed scheme enables the secondary link to take advantage of multiuser diversity while ensuring that the interference on primary link is within a certain threshold. Analytical results show that the sum rate of secondary uplink scales as Ns log logK for K secondary users and Ns antennas on secondary receiver for very large K. © 2014 IEEE.
著者Yang L., Zhang W., Zheng N., Ching P.C.
會議名稱2014 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2014
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
頁次7303 - 7307
國際標準書號9781479928927
國際標準期刊號1520-6149
語言英式英語
關鍵詞cognitive radio network, multiuser diversity, Opportunistic user scheduling

上次更新時間 2020-14-10 於 01:51