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Resource allocation with interference information sharing in multi-carrier networks

机译：多载波网络中具有干扰信息共享的资源分配

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摘要

This paper considers the interference mitigation problem in multi-cell networks based on Orthogonal Frequency-Division Multiple Access (OFDMA). The approaches studied here rely on allocation algorithms exploiting base stations cooperation achieved by means of inter-cell interference information sharing. Our emphasis is concentrated on the terminals at the cell edge since, obviously, they are more affected and limited by interference. The paper presents results on several schemes of cooperation (centralized, semi-distributed, coordinated-distributed) combined with allocation algorithms characterized by the awareness of interference relations among users, achieved sharing channel state information among base stations in a typical multi-cell layout. The interference relations are revealed by processing particular graphs, either for partial frequency reuse or soft frequency reuse schemes. So the network realizes, in several forms, a dynamic fractional frequency reuse and the study highlights the main advantages of the best strategies in terms of cooperation and resource allocation.
机译：本文考虑了基于正交频分多址（OFDMA）的多小区网络中的干扰缓解问题。这里研究的方法依赖于利用小区间干扰信息共享实现的基站协作的分配算法。我们的重点是集中在小区边缘的终端，因为显然，它们受到干扰的影响更大，并且受到干扰的限制。本文介绍了几种协作方案（集中式，半分布式，协作式分布式）与分配算法相结合的结果，这些分配算法的特点是了解用户之间的干扰关系，在典型的多小区布局中实现了基站之间共享信道状态信息。通过处理特定的图形来揭示干扰关系，无论是针对部分频率复用还是针对软频率复用方案。因此，网络以多种形式实现了动态分数频率重用，并且该研究突出了最佳策略在合作和资源分配方面的主要优势。

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