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DOI:
Journal of Software:2000.11(12):1620-1627

视频服务器网络中影像对象映射问题的研究
周笑波,谢立,ReinhardLueling
(南京大学 计算机软件新技术国家重点实验室,江苏 南京,210093;南京大学 计算机科学与技术系,江苏 南京,210093;德国Paderborn大学 计算机并行中心,德国)
Media Mapping in Video Server Networks
ZHOU Xiao-bo,XIE Li,Reinhard Lueling
()
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Received:January 25, 2000    Revised:March 30, 2000
> 中文摘要: 视频服务器网络中的影像对象映射问题是一种新的组合优化问题.服务器网络可以建立在基于局域网的工作站网络之上,也可以建立在广域网之上.基于对用户的服务请求模式、服务器网络的存储容量和通信带宽等因素的综合考虑,研究了服务器网络中影像对象映射问题,利用局部搜索算法给出了一套对该映射问题的解决方案.然后用一套基准集实例对给出的算法集进行验证.结果表明,在较短的计算时间内,该算法可以得到近似最优解的方案.
Abstract:Media mapping in video-on-demand server networks is a new combinatorial optimization problem. The network of video servers can be implemented on the top of a closely connected network of workstations or on a wide area network of servers. This paper addresses the media mapping problem, taking the user access patterns, overall storage capacity and communication bandwidth limitations of the server network into account. A number of methods based on local search algorithms for the solution of the mapping problem are proposed and verified by use of a set of benchmark problems. The simulations show that these heuristic solutions can achieve nearly optimal solutions in a short computational time.
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基金项目:国家863高科技项目基金资助项目(863-306-2T02-03-1);德国西门子公司资助项目. 国家863高科技项目基金资助项目(863-306-2T02-03-1);德国西门子公司资助项目.
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周笑波,谢立,Reinhard Lueling.视频服务器网络中影像对象映射问题的研究.软件学报,2000,11(12):1620-1627

ZHOU Xiao-bo,XIE Li,Reinhard Lueling.Media Mapping in Video Server Networks.Journal of Software,2000,11(12):1620-1627