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| 1 | LTE-A飞蜂窝系统干扰协调智能优化算法显示文摘在同频组网的LTE-A飞蜂窝系统中,飞蜂窝基站的密集部署会造成较为严重的同频干扰,导致网络吞吐量和用户的服务质量(Quality of Service,QoS)降低。部分频率复用(Fractional Frequency Reuse,FFR)作为常用的干扰协调方案,可以有效地提高边缘用户的服务质量。在FFR方案的基础上,通过结合遗传算法和基于模拟退火的图着色算法,提出了一种智能优化部分频率复用(Intelligence-FFR,I-FFR)算法。该算法能够动态地调整中心区域所占比例和边缘区域的频率复用因子,以增加宏小区吞吐量,降低小区边缘区域用户的中断概率。仿真结果表明,与FFR-3干扰协调算法相比,提出的I-FFR算法可使宏小区吞吐量提升15%,同时边缘区域平均用户的中断概率从85%降低到40%。 | 高潮欣 陈昕 向旭东 | 2015 | 计算机科学2015，42，8： | 2 |
| 2 | Design and Implementation of Dynamic High-Speed Switches in Super Base Station Architectures显示文摘Novel centralized base station architectures integrating computation and communication functionalities have become important for the development of future mobile communication networks.Therefore,the development of dynamic high-speed interconnections between baseband units(BBUs)and remote radio heads(RRHs)is vital in centralized base station design.Herein,dynamic high-speed switches(HSSs)connecting BBUs and RRHs were designed for a centralized base station architecture.We analyzed the characteristics of actual traffic and introduced a switch traffic model suitable for the super base station architecture.Then,we proposed a data-priority-aware(DPA)scheduling algorithm based on the traffic model.Lastly,we developed the dynamic HSS model based on the OPNET platform and the prototype based on FPGA.Our results show that the DPA achieves close to 100%throughput with lower latency and provides better run-time complexity than iOCF and HE-iSLIP,thereby demonstrating that the proposed switch system can be adopted in centralized base station architectures. | Yingjiao Ma Jinglin Shi Yiqing Zhou Lin Tian Manli Qian | 2020 | China Communications2020，17，3： | 1 |
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