User-Centric Cross-Tier Base Station Clustering and Cooperation in Heterogeneous Networks: Rate Improvement and Energy Saving
User-Centric Cross-Tier Base Station Clustering and Cooperation in Heterogeneous Networks: Rate Improvement and Energy Saving
复制标题
以用户为中心的异构网络跨级基站集群与协作：速率提升与节能
DOI：
10.1109/jsac.2016.2551488
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发表时间：
2016-04
影响因子：
16.4
通讯作者：
Jin Shi
中科院分区：
文献类型：
--
作者：
Nie Weili;Zheng Fu-Chun;Wang Xiaoming;Zhang Wenyi;Jin Shi
异构蜂窝网络（HetNet）将被部署用于未来的无线通信以满足不断增长的移动的业务需求。然而，小型小区的密集和随机部署及其不协调的操作引起了对各种成本问题的重要关注，其中值得注意的是能量效率。基站（BS）协作被设置为在管理HetNet中的干扰中发挥关键作用。在本文中，我们考虑在下行链路HetNet中的BS合作，其中来自各个合作集群内的不同层的BS共同向典型用户发送相同的数据，并且特别关注能量效率性能的优化。首先，基于一个建议的聚类模型，我们推导出的频谱效率使用随机几何工具。此外，我们制定了一个功率最小化问题的最小频谱效率的约束，并在一定的近似下获得最佳的接收信号强度（RSS）阈值。在这些结果的基础上，我们可以解决如何设计适当的RSS阈值的问题，同时考虑到频谱效率和能源效率之间的权衡。仿真结果表明，所提出的聚类模型是更节能的几何聚类模型，和部署一个多层HetNet是显着更节能相比，一个宏观的网络。
Heterogeneous cellular networks (HetNets) are to be deployed for future wireless communication to meet the ever-increasing mobile traffic demand. However, the dense and random deployment of small cells and their uncoordinated operation raise important concerns about various costs issues, among which notably is energy efficiency. Base station (BS) cooperation is set to play a key role in managing interference in HetNets. In this paper, we consider BS cooperation in the downlink HetNets where BSs from different tiers within the respective cooperative clusters jointly transmit the same data to a typical user, and in particular focus on the optimization of the energy efficiency performance. First, based on a proposed clustering model, we derive the spectral efficiency using tools from stochastic geometry. Furthermore, we formulate a power minimization problem with a minimum spectral efficiency constraint and derive the optimal received signal strength (RSS) thresholds under certain approximation. Building upon these results, we could address the problem of how to design appropriate RSS thresholds, taking into account the tradeoff between spectral efficiency and energy efficiency. Simulations show that the proposed clustering model is more energy-saving than the geometric clustering model, and deploying a multitier HetNet is significantly more energy-saving compared to a macro-only network.
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影响因子：
12.9
作者：
Auer, Gunther;Giannini, Vito;Fehske, Albrecht
通讯作者：
Fehske, Albrecht
DOI：
10.1109/glocom.2011.6133999
发表时间：
2011-12
期刊：
2011 IEEE Global Telecommunications Conference - GLOBECOM 2011
影响因子：
--
作者：
S. Tombaz;P. Monti;Kun Wang;A. Vastberg;M. Forzati;J. Zander
通讯作者：
S. Tombaz;P. Monti;Kun Wang;A. Vastberg;M. Forzati;J. Zander
影响因子：
12.9
作者：
Sawahashi, Mamoru;Kishiyama, Yoshihisa;Tanno, Motohiro
通讯作者：
Tanno, Motohiro
影响因子：
16.4
作者：
Gesbert, David;Hanly, Stephen;Yu, Wei
通讯作者：
Yu, Wei
影响因子：
11.2
作者：
Andrews, Jeffrey G.
通讯作者：
Andrews, Jeffrey G.