Abstract:
Aiming at the issue of bandwidth wasting due to unbalanced data allocation for multi-channel multicast schedule, this paper proposes three dynamic bandwidth assignment schemes. It changes assignment priority by data items’ average lengths or number of queues, and analyzes their performance. Experiments show that Dynamic Assignment Bandwidth(DAB) can improve utilization rate by 43% at most compared with Static Assignment Bandwidth(SAB), and average-short-first assignment is the best.
Key words:
multicast schedule,
data dissemination,
bandwidth assignment
摘要: 针对多通道组播调度中数据分配不均带来的带宽浪费问题,提出3种动态带宽分配方案。根据数据项平均长度或数量改变分配优先级,对不同方案进行性能分析。实验表明,动态分配比静态分配最多可提高43%的带宽利用率,其中平均数据项长度最短优先分配最好。
关键词:
组播调度,
数据分发,
带宽分配
CLC Number:
SUN Xian-jun; XU Tong-fa; LIU Wei-dong; LIN Chuang. Dynamic Bandwidth Assignment Scheme for Real-time Data Multicast Schedule[J]. Computer Engineering, 2009, 35(19): 7-9,12.
孙显军;徐桐发;刘卫东;林 闯. 实时数据组播调度动态带宽分配方案[J]. 计算机工程, 2009, 35(19): 7-9,12.