The invention discloses a scheduling method for scalable video streaming can be observed Markov decision process, the method for wireless broadcast environment is simplified, the uncertainty in the user state or partially observable conditions for scalable video stream scheduling, packet scheduling optimization model is build by observing Markov decision process in part, it includes the state set, action set, state transition function and reward function, observation set, observation probability, given the scheduling process, which comprises the following steps: (1) suppose a radio transmission model; (2) the data of each frame of a scalable video stream is divided into layers, each layer of packing for a data packet, each frame packet set is established, packet scheduling optimization model; (3) for scalable video streaming scheduling optimization. This method establishes a scalable video streaming packet scheduling optimization model, which can improve the average PSNR value of video stream, so as to optimize the overall video reception quality of users.
【技术实现步骤摘要】
【技术保护点】
一种部分可观测马尔可夫决策过程中可伸缩视频流的优化调度方法,其特征在于,针对无线广播下的环境进行假设简化,在用户状态不确定或部分可观测的条件下,对可伸缩视频流进行调度,采用部分可观测马尔可夫决策过程建立数据包调度优化模型,该模型包括状态集合、行动集合、状态转移概率、报酬函数、观察集合、观察概率,给出具体的调度过程,其具体步骤如下:(1)、假设一个无线广播传输环境模型,其具体为:(1-1)、AP需要将视频流发送给M个接收者r↑[1],r↑[2],…,r↑[M];(1-2)、AP需要在N个时隙内将L个包的集合L={l↓[1],l↓[2],…,l↓[L]}发送给接收者;(1-3) ...
【技术特征摘要】
【专利技术属性】
技术研发人员:邹君妮,范凤军,彭兵,汪敏,
申请(专利权)人:上海大学,
类型:发明
国别省市:31[中国|上海]
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