Recent Developments on the Spatial Models
نویسندگان
چکیده
1556-6072/09/$25.00©2009IEEE IEEE VEHICULAR TECHNOLOGY MAGAZINE | JUNE 2009 Digital Object Identifier 10.1109/MVT.2009.932543 The radio spectrum is a precious resource that underpins various wireless services. It is traditionally regulated by a fixed frequency assignment policy, which allocates frequency bands to license holders for exclusive use. Such a static and rigid spectrum-licensing policy eliminates interference among different radio systems in a brutal-force way but results in very inefficient spectrum utilization [1]. Dynamic spectrum access (DSA) [2], [3] has been proposed as a promising approach to improve spectrum utilization Recent Developments on the Spatial Models
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