The Federal Communications Commission(FCC)released the final rule to approve of TV white spaces(TVWS),i.e.,locally vacant TV channels,for unlicensed use in 2010.This TV spectrum will mitigate the shortage of wireless spectrum resources and provide opportunities for new applications.TVWS differ from the conventional Wi-Fi spectrum in three aspects: spectrum fragmentation,spatial variation,and temporal variation.These differences make the network design over TVWS challenging and fundamentally different from Wi-Fi networks.While most prior works on TVWS network design focused on outdoor large-area scenario,the important indoor scenario is largely open for investigation.