A Quality of service based spectrum allocation framework for TV white spaces

Abstract

Analog to digital switchover of TV transmission has freed up a large amount of licensed spectrum. This spectrum is in the form of chunks, referred as TV White Spaces (TVWS). It is made compulsory by Federal Communications Commission (FCC) for unlicensed users to access TVWS through Access Points (APs), who have to query a FCC approved database e.g., WhiteNet, periodically to avail the free spectrum. It is important that for e_cient utilization of available spectrum, APs must assign spectrum to end users based on their Quality of Service (QoS) requirements. Moreover, care must be taken in charging end users while meeting their QoS requirements, as di_erent end users demand di_erent pricing schemes i.e., _xed pricing and variable pricing. Considering these challenges, WhiteNet has been modi_ed in this thesis work to accommodate QoS and pricing tradeo_. It is proposed to characterize end users' QoS requirements in the form of demand index and provide admission control on the basis of pricing schemes. It is proved with our experimental results that our proposed scheme is a useful addition in FCCs TVWS database framework