Kriging-Based Interference Power Constraint: Integrated Design of the Radio Environment Map and Transmission Power

摘要: This paper proposes a probabilistic interference constraint method with radio environment map (REM) for spatial spectrum sharing. The REM stores the distribution of average received signal power. We can optimize accuracy measurement-based using Kriging interpolation. Although several researchers have maintained continuous interest in improving REM, sufficient study has not been done to actually explore considering estimation error. proposed uses ordinary interpolation cartography. According predicted error, allowable power primary user is approximately formulated. Numerical results show that achieve asymptotically. Additionally, we compare performance technique three methods: perfect estimation, path loss-based method, and Kriging-based without error prediction. comparison higher sharing opportunity than even if only small amount measurement data available. It also shown dramatically improves outage probability compared conventional method.