REGULATIONS AND PROFILESTV White Space Regulations; Stephen J. Shellhammer, Cong Shen, Ahmed K. Sadek, and Wenyi ZhangProjecting Regulatory Requirements for TV White Space Devices; Benoit Pi erre Freyens and Mark LoneyTVWS System Requirements, Randy L. Ekl, David P. Gurney, and Bruce D. OberliesWhite Space Availability in the United States; Ahmed K. Sadek, Stephen J. Shellhammer, Cong Shen, and Wenyi ZhangTV White Spaces in Europe; Heikki Kokkinen, Jukka Henriksson, and Risto Wichman STANDARDSStandardization Activities Related to TV White Space: PHY /MAC Standards; Tuncer Baykas, Jianfeng Wang, M. Azizur Rahman, and Zhou LanStandardization Activities Related to TV White Space: Coexistence and Dynamic Spectrum Access Standards; Tuncer Baykas, Markus Muck , Stanislav Filin, Mika Kasslin, Paivi Ruuska, and Junyi WangSystem Level Analysis of OFDMA -Based Networks in TV White Spaces: IEEE 802.22 Case Study; Przemyslaw Pawelczak, Jihoon Park , Danijela Cabric, and Pal GronsundInter-Network Spectrum Sharing and Communications in Cognitive Radio Networks Using On-Demand Spectrum Contention and Beacon Period Framing; Wendong Hu, Gregory J. Pottie, and Mario Gerla COEXISTENCESpectrum Sensing in TV White Space; Rania A. Mokhtar, Rashid A. Saeed, and Borhanuddin M. AliDistributed Spectrum Sensing; Yohannes D. Alemseged, Chen Sun, Ha Nguyen Tran, and Hir oshi HaradaLeveraging Sensing and Geo-Location Database in TVWS Incumbent Protection; Rashid A. Saeed and Rania A. Mokhtar OTHER ASPECTSElements of Efficient TV White Space Allocation Part I: Acquisition Principles; Joseph W. Mw angoka, Paulo Marques, and Jonathan RodriguezElements of Efficient TV White Space Allocation Part II: Business Models; Joseph W. Mwangoka, Paulo Marques, and Jonathan RodriguezTV White Space Use Cases; Chin-Sean Sum, Gabriel Porto Villardi, Richard Paine, Alex Reznick, and Mark CummingsTV White Space Privacy and Security; Mark Cummings and Preston Marshall