一种蓝牙微微网视频流媒体MAC层调度算法  

MAC Scheduling Algorithm for Video Streaming in Bluetooth Piconet

作　　者：刘建峰[1] 张锦峰[1] 覃少华[2] 金惠华[1] 

机构地区：[1]北京航空航天大学计算机学院,北京100083 [2]广西师范大学计算机科学与信息工程学院,桂林541004

出　　处：《系统仿真学报》2009年第20期6409-6414,共6页Journal of System Simulation

摘　　要：为了在带宽有限并且异构的蓝牙微微网中提供高质量的视频流媒体服务,提出了一种适合视频流媒体传输的MAC层数据调度算法。通过对视频流进行建模,在传输之前计算出数据包对于视频流解码质量的重要性,传输时依据数据包的重要性进行MAC层调度,以实现所有Slave整体解码质量的最优化。仿真实验结果表明,所提出的算法比其他算法能够更加优化地分配网络资源,并显著提高了微微网中所有Slave的整体解码质量。In order to provide the high quality service for transporting video streaming in the Bluetooth Piconet, in which the bandwidth is limited and the structure is heterogeneous, a MAC scheduling algorithm for video streaming in the Bluetooth Piconet was proposed. The main idea of the algorithm is to model the video streaming and calculate the importance of the packet relative to the video quality before transporting. The packet on the transportation is scheduled by the importance in the MAC layer to attain the maximum perceived quality of the overall Slaves in the Piconet. The simulation shows that the proposed algorithm can assign the network resource more efficiently, and improve the perceived video quality of the Slaves in the Piconet more significantly in contrast with the other algorithms.

关 键 词：蓝牙 微微网 流媒体 MAC层调度 

分 类 号：TP393.03[自动化与计算机技术—计算机应用技术]