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Deploying dense small cell networks overlaying to the conventional macro cell networks is widely regarded as a key step towards network architecture revolution for improved coverage and user rate. Small cells have different kinds, and a target coverage can be achieved through deploying different kinds of small cells. Previous works mainly focus their attention on the optimization of spectrum and energy...
Soft frequency reuse (SFR) schemes have been proposed to mitigate the inter-cell interferences (ICI) issue for capacity improvements at cell edge. Nonetheless, the allocation of subcarriers in SFR reduces spectral efficiency in specific cell areas, resulting in the decrease of the system throughput. In this paper, we propose to improve the system throughput by dynamically allocating and exchanging...
Many previous schemes of multi-node cooperation mimic the behavior of the multiple-antenna system, and the imitation usually causes extra overheads. In this paper, we propose a novel multi-node cooperation scheme to avoid the imitation. The basic idea is to take the wireless broadcast advantage in the whole procedure. As a result, each source could maintain a multihop diversity route to the destination...
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