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- W2541566114 abstract "In heterogeneous networks (HetNets), the load between macro-cell base stations (MBSs) and small-cell BSs (SBSs) is imbalanced due to transmit power disparities and ad-hoc deployment of SBSs. This significantly impacts the system performance and user experience. Associating more users to the SBSs is an effective way to solve this problem. In this paper, we formulate the user-BS association problem as a distributed optimization problem with proportional fairness as the objective. Specifically, we propose a novel distribute algorithm based on the belief propagation (BP) method to solve the user-BS association problem via iteratively message passing between the users and BSs. Also, we develop an approximation calculation in the BP method to reduce the computational complexity and transmission overhead of message passing. Simulation results show that the proposed algorithm well approaches the optimal system performance (by exhausting search) with low complexity and fast convergence." @default.
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- W2541566114 date "2014-09-01" @default.
- W2541566114 modified "2023-09-24" @default.
- W2541566114 title "A belief propagation approach for distributed user association in heterogeneous networks" @default.
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- W2541566114 doi "https://doi.org/10.1109/pimrc.2014.7136460" @default.
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