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首页> 外文会议>VTC Fall;IEEE Vehicular Technology Conference >Downlink Resource Management Based on Cross-Cognition and Graph Coloring in Cognitive Radio Femtocell Networks
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Downlink Resource Management Based on Cross-Cognition and Graph Coloring in Cognitive Radio Femtocell Networks

机译：认知无线电家庭基站网络中基于交叉认知和图着色的下行资源管理

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摘要

Femtocell technology features prominently in future communication system owing to its characteristic advantages. However, the coexistence of femtocells and traditional cellular system causes severe contradictions between spectrum utilization and interference. This paper studies the cross tier resource management and intra tier resource management in hybrid macro/femto network, and a novel Cross-Cognition scheme for cross tier resource management is proposed in order to achieve better spectrum utilization and lower interference. Moreover, a resource allocation scheme based on graph Coloring is also proposed for intra tier resource management to decrease the intra tier interference. Simulations show that the proposed schemes significantly increase the throughput of femtocell system, and outperform traditional cognitive resource allocation schemes.
机译：Femtocell技术由于其独特的优势而在未来的通信系统中具有突出的特征。然而，毫微微小区与传统蜂窝系统的共存导致频谱利用与干扰之间的严重矛盾。本文研究了混合宏/毫微微网络中的跨层资源管理和层内资源管理，并提出了一种新颖的跨层资源管理交叉认知方案，以实现更好的频谱利用率和更低的干扰。此外，还提出了基于图着色的资源分配方案用于层内资源管理，以减少层内干扰。仿真表明，所提出的方案显着提高了毫微微小区系统的吞吐量，并且优于传统的认知资源分配方案。

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