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LTE-A HetNet下一种基于eICIC和载波聚合的联合动态调度算法
发表时间：2016-02-28 浏览量：2280 下载量：795
| 全部作者： | 薛妹，邹素玲，赵新胜 |
| 作者单位： | 东南大学信息科学与工程学院；大唐移动通信设备有限公司；东南大学移动通信国家重点实验室 |
| 摘 要： | 提出一种LTE-A异构网络（heterogeneous network，HetNet）的增强型小区间干扰协调（enhanced intercell interference coordination，eICIC）和载波聚合的联合动态调度算法，该算法在传统M-LWDF算法的基础上加入了实时（real time，RT）业务的补偿因子和非实时（non-RT）业务的公平因子，提出一种改进的联合成员载波（component carrier，CC）最大权重时延优先算法；在初始载波分配时，把具有最小聚合队头时延（head of line，HOL）的载波分配给用户，在调度过程中，若出现队列为空的空闲载波，则根据边缘用户优先原则进行分配。仿真结果表明：此算法提高了边缘用户的吞吐量、系统公平性和小区频谱效率，与Traditional算法相比，边缘用户的平均吞吐量提高了25%，系统的公平性提高了33%. |
| 关 键 词： | 通信技术；联合动态调度；增强型小区间干扰协调；载波聚合 |
| Title： | Dynamic joint scheduling algorithm of eICIC and carrier aggregation in LTE-A HetNet |
| Author： | XUE Mei, ZOU Suling, ZHAO Xinsheng |
| Organization： | College of Information Science and Engineering, Southeast University; Datang Mobile Communications Equipment Co. Ltd.; National Mobile Communications Research Laboratory, Southeast University |
| Abstract： | In this paper, we proposed a joint dynamic scheduling algorithm of enhanced intercell interference coordination (eICIC) and carrier aggregation in LTE-A heterogeneous network (HetNet). Firstly, the algorithm adds a guarantee factor for real time (RT) traffic and an equity factor for non-RT traffic based on the M-LWDF algorithm. Secondly, in the initial carrier allocation, the carrier with the smallest aggregation head of line (HOL) delay is allocated to the user. In the scheduling process, empty carrier is allocated according to the principle of giving priority to edge user. Simulation results show that the proposed algorithm improves the edge user throughput, the fairness of the system and cell spectral efficiency. Compared to the Traditional algorithm, the average edge user throughput and the system fairness index have increased by 25% and 33%, respectively. |
| Key words： | communication technology; joint dynamic scheduling; enhanced intercell interference coordination; carrier aggregation |
| 发表期数： | 2016年2月第4期 |
| 引用格式： | 薛妹，邹素玲，赵新胜. LTE-A HetNet下一种基于eICIC和载波聚合的联合动态调度算法[J]. 中国科技论文在线精品论文，2016，9（4）：349-356. |
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