The following publications are possibly variants of this publication:
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- Angle-Domain Spectrum Holes Analysis with Directional Antenna in Cognitive Radio NetworkYadong Zhao, Zhiqing Wei, Yunfeng Liu, Qixun Zhang, Zhiyong Feng. wcnc 2017: 1-6 [doi]
- Proactive Detection of Spectrum Holes in Cognitive RadioGuodong Zhao, Ye (Geoffrey) Li, Chenyang Yang, Jun Ma. icc 2009: 1-5 [doi]