TY - Journal of Beijing University of Posts and Telecommunications A1 - XUE Jian-tao, FENG Zhi-yong T1 - Spatial Dynamic Spectrum Access Opportunities in TV Whitespace of Beijing Y1 - 2014-01-07 00:00:00.0 JF - Journal of Beijing University of Posts and Telecommunications JO - Journal of Beijing University of Posts and Telecommunications SP - 1 EP - 5 VL - 37 IS - 1 UR - {https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2014.01.001} N1 - 10.13190/j.jbupt.2014.01.001 ER -