一种基于效用与业务特性的帧聚合分配机制

Scheduling of Frame Aggregation Based on Utility Function and Service Characters

为提高聚合效率与网络吞吐量,提出了一种基于效用函数与业务特性的帧聚合分配机制。首先分析了各业务特性,在此基础上建立一种帧聚合轮询模型,以及各业务类型关于聚合速率的效用函数,进一步提出了一种多业务帧聚合分配策略。仿真分析表明,在802.11n协议场景下,文章所提出的帧聚合分配机制相对于标准的帧聚合机制能够有效地提高系统聚合效率与时隙利用率。

For the higher fraction of channel bandwidth especially in condition of various services,the frame aggregation needs to be enhanced.In this paper,a scheduling mechanism of frame aggregation is proposed based on utility function and service characters.Firstly,a frame aggregation polling model is proposed with the analysis of differrent services characters.Then we present a frame aggregation scheduling strategy using utility function.Simulation shows that the aggregation efficiency and internet thoughout are significantly improved compared with the standard aggregation without scheduling.