Supported by the National Natural Science Foundation of China (60832009), the Natural Sciences Foundation of Beijing (4102044), the Fundamental Research Funds for the Central Universities (BUPT2009RC019), and the National Major Prefects for Science and Technology Development (2009ZX03003-003-01).
In the heterogeneous wireless networks of the next generation, a large number of different radio access technologies will be integrated into a common network. This paper considers optimizing the utilization of spectru...