Timely throughput of heterogeneous cellular networks
Timely throughput of heterogeneous cellular networks
复制标题
异构蜂窝网络的及时吞吐量
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Hangguan Shan
中科院分区：
文献类型：
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作者：
Gong;Aiping Huang;Tony Q. S. Quek;Hangguan Shan
通过部署密集的小蜂窝进行网络增密是未来蜂窝网络提高频谱效率的主要演进之一。在干扰受限的异质蜂窝网络(HCN)中，分组传输延迟和可靠性是系统设计的基本性能指标。通过将HCN中基站的位置建模为独立泊松过程的叠加，我们提出了一个分析框架来推导HCN的实时吞吐量，该模型同时考虑了时延和可靠性性能。在分析中，考虑了基站的活跃度和传输的时间相关性，这两个因素对网络性能都有显著影响。通过数值结果研究了移动性、基站密度和关联偏差因子对网络性能的影响，结果表明，在忽略传输的时间相关性的情况下，网络性能是乐观的。
Network densification via deploying dense small cells is one of the dominant evolutions towards future cellular network to increase spectrum efficiency. Packet transmission delay and reliability in the resultant interference-limited heterogeneous cellular network (HCN) are essential performance metrics for system design. By modeling the locations of base stations (BSs) in HCN as superimposed of independent Poisson point processes, we propose an analytical framework to derive the timely throughput of HCN, which captures both the delay and reliability performance. In the analysis, the BS activity and temporal correlation of transmissions are taken into consideration, both of which have significant effect on network performance. The effect of mobility, BS density, and association bias factor is investigated through numerical results, which shows that network performance derived ignoring the temporal correlation of transmissions is optimistic.