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In heterogeneous networks(HetNets), offloading mobile users to less congested small cells results in a degraded SINR for offloaded users and leads to a high probability of outage for these users. In this paper, we proposes a general framework to solve the cell association problem for load balancing while improving system outage performance in a downlink multi-tier HetNet. A bi-criterion optimization...
In heterogeneous cellular networks (HCNs), it is highly desirable to design a cell association strategy that can actively offload mobile users to less congested small cells. Such a cell association strategy needs to be considered in conjunction with resource allocation. In this paper we take an optimization approach to analyze joint cell association and resource allocation in a two tier HCN. We formulize...
Deploying small cells has been widely accepted as a viable solution to meet ever-growing demand of user traffic in cellular heterogeneous networks (HetNets). These small cells can be deterministically or randomly deployed. In this paper we consider a HetNet scenario where multiple small cells are randomly or deterministically overlaid with a macro cell. We use the hexagonal grid model for the deterministic...
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