Resource Allocation Method Using Channel Sensing and Resource Reuse for Cognitive Femtocells
Keywords:
Cognitive femtocell, channel sensing, frequency reuse, resource allocationAbstract
A cognitive femtocell is a new small cell based on a
smart home base station to solve the spectrum-scarcity problem.
Recently, dedicated resource allocation for cognitive femtocells
is extensively researched to mitigate the co-channel interference.
However, the cognitive femtocell may suffer from the lack of
frequency resource for its users due to high data traffic load of
the macrocell. In this paper, we propose a novel resource
allocation scheme based on the channel sensing and the spatial
radio resource reuse mechanism, which enables femto users in
the cognitive femtocell to obtain more feasible radio resource.
The simulation results show that the capacity of the cognitive
femtocell can be improved under high data traffic load of the
macrocell compared to that of the conventional scheme.
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