TY - Journal of Beijing University of Posts and Telecommunications A1 - GUO Bo-ren, ZHANG Xin, YANG Hong-wen T1 - A Random Access Scheme Based on Sub-Preambles for IoT Systems Y1 - 2018-11-20 00:00:00.0 JF - Journal of Beijing University of Posts and Telecommunications JO - Journal of Beijing University of Posts and Telecommunications SP - 110 EP - 114 VL - 41 IS - 5 UR - {https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2018-175} N1 - 10.13190/j.jbupt.2018-175 ER -