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Commercially viable free DTTV will depend on adoption of new technologies, some already available, that will in turn generate new business models. These technologies will permit new real and virtual channels through more efficient spectrum usage and dynamic sharing of the maximum data rate among several applications. The ongoing evolution of software-based receivers will provide the backbone for reliable reception indoors of arbitrarily formatted transmission that will not create new interference to other services.doi:10.1109/tbc.2006.879933 fatcat:heytmd4b4nc3rhv5agrrpiuwam