Motivation 上通字 SHANGHAI JIAO TONG UNIVERSITY @2 The workload of measuring all the Rss data in 3-D space is much higher than that in 2-d case Some technologies such as surface-based interpolation only record the average value of RSS at each calibration point, which loses the information included in the statistical features of Rss caused by the complex channel environment 频数直方图与正态分布密度函数(2m) llMotivation ② The workload of measuring all the RSS data in 3-D space is much higher than that in 2-D case. ➢ Some technologies such as surface-based interpolation only record the average value of RSS at each calibration point, which loses the information included in the statistical features of RSS caused by the complex channel environment. 8