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GLOBECOM
2008
IEEE

Cooperative Spectrum Allocation in Centralized Cognitive Networks Using Bipartite Matching

8 years 11 months ago
Cooperative Spectrum Allocation in Centralized Cognitive Networks Using Bipartite Matching
—Conflict free spectrum allocation for secondary users in cognitive networks is a challenging problem, since the accessible spectrum is shared among users. The problem becomes to be especially difficult when it is wanted to get the maximum utility of the system considering access fairness among users. In this paper, a novel method using bipartite graph matching is proposed to approach this target, where users cooperatively optimize spectrum allocation to get the maximal system utility while avoiding interference with its neighbors. An idealized method for centralized cognitive networks is presented; experimental results show that proposed algorithm dramatically maximizes spectrum utilization together with reducing allocation conflictions among users, which minimize the number of starved users during the allocation.
Chengshi Zhao, Mingrui Zou, Bin Shen, Bumjung Kim,
Added 09 Nov 2010
Updated 09 Nov 2010
Type Conference
Year 2008
Where GLOBECOM
Authors Chengshi Zhao, Mingrui Zou, Bin Shen, Bumjung Kim, Kyungsup Kwak
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