D2D 下叠蜂窝网络中基于保护区的可扩展模式选择方案
摘要
在蜂窝网络下叠部署设备到设备 (D2D) 通信,有望显著提高蜂窝网络的频谱效率并卸载由基站中继的流量。然而,这也带来了干扰管理的新挑战。在本文中,我们考虑多小区 D2D 下叠蜂窝网络,其中许多 D2D 链路同时复用上行链路资源。干扰消除/对齐的不可行性促使我们强制靠近基站的 D2D 用户以蜂窝模式工作。基于此,我们提出了一种基于保护区的分布式可扩展模式选择方案,以在减少对基站的干扰惩罚和提高频谱利用率之间取得良好平衡。借助随机几何,我们开发了一个解析易处理的框架,用于分析所考虑场景中两类用户的干扰及随后的吞吐量。该框架所得结果表明,启用 D2D 通信确实提高了每用户吞吐量,而适当的保护区可进一步显著增加两类用户的平均吞吐量。得益于我们模型的可处理性,作为我们方案关键参数的最优保护区,可以通过求吞吐量表达式一阶导数的根来高效获得。通过广泛的数值分析,我们展示了系统的见解并给出了一些系统设计方面的指导原则。
引用
@article{arxiv.1406.7395,
title = {A Guard Zone Based Scalable Mode Selection Scheme in D2D Underlaid Cellular Networks},
author = {Junhong Ye and Ying Jun Zhang},
journal= {arXiv preprint arXiv:1406.7395},
year = {2014}
}
备注
This paper has been withdrawn by the author due to the error in the proposition proof and simulation setting. The proof of the proposition has some flaws currently and needs to be refined. The simulation also needs to be re-run due to the error in parameter setting. For the same reason, the numerical results also need to be re-configured and re-calculated