1关于信息高速公路
在21世纪全球经济一体化大趋势的前提下,各国都在思考新世纪经济如何发展,竞争的焦点在哪儿?美国于1993年和1994年先后提出"国家信息基础结构"NII(Nation Information Infrastructure)和"全球信息基...1关于信息高速公路
在21世纪全球经济一体化大趋势的前提下,各国都在思考新世纪经济如何发展,竞争的焦点在哪儿?美国于1993年和1994年先后提出"国家信息基础结构"NII(Nation Information Infrastructure)和"全球信息基础结构"GII(Global Infomation Infrastructure),也就是俗称的"信息高速公路"IH(Information Highway)计划.这是美国面对21世纪全球经济发展而提出的重要战略计划.而信息领域的竞争将成为世界经济竞争的核心.信息领域的竞争不仅取决于信息技术的发展,而且取决于一个国家宽带网络的发展水平,也是代表着一个国家的经济实力.展开更多
For telecommunication operators, how to improve the utilization of bandwidth resources is always a problem which worthy of study, nowadays, this issue has become more and more important, since the traffic load burstin...For telecommunication operators, how to improve the utilization of bandwidth resources is always a problem which worthy of study, nowadays, this issue has become more and more important, since the traffic load bursting in the mobile Internet. So the key to solving this problem is that we need to find a kind of traffic model to predict the traffic load that users need. According to the predicted traffic load to allocate bandwidth to each base station dynamically.But the traffic consumption behavior of a single base station is random, it is difficult to predict[ 1 ]. For this reason, we based on reality that, when the user moves, it may get traffic load from different base stations, therefore, there will have some kind of relationship between those base stations.We use this relationship to establish a kind of Spatial Collaborative Network.consequently, we make use of stability algorithm to divided those base station cluster into different communities, According to the traffic load usage rules which these communities indicated to us, we get a traffic model.At the same time, we studied bow to use this traffic model in the future networks to dynamically allocate bandwidth resources, then we propose a new kind of EPS architecture based on SDN, on this platform, we can deploy our strategy through it＇s programmable interface.Finally, we designed an experiment to test the performance of our dynamic strategy, and the result shows that our method enables bandwidth utilization has been greatly improved.展开更多
基金part of the National Natural Science Foundation of China(NSFC)under Grant No.61371126the Independent Research Program of Central Universities under Grant No.2042014kf0256+2 种基金the National High Technology Research and Development Program of China(863 Program)under Grant No.2014AA01A707the National Key Basic Research Program of China(973 Program)under Grant No.2011CB707106Applied Basic Research Programs of Wuhan under Grant No.2014010101010026
文摘For telecommunication operators, how to improve the utilization of bandwidth resources is always a problem which worthy of study, nowadays, this issue has become more and more important, since the traffic load bursting in the mobile Internet. So the key to solving this problem is that we need to find a kind of traffic model to predict the traffic load that users need. According to the predicted traffic load to allocate bandwidth to each base station dynamically.But the traffic consumption behavior of a single base station is random, it is difficult to predict[ 1 ]. For this reason, we based on reality that, when the user moves, it may get traffic load from different base stations, therefore, there will have some kind of relationship between those base stations.We use this relationship to establish a kind of Spatial Collaborative Network.consequently, we make use of stability algorithm to divided those base station cluster into different communities, According to the traffic load usage rules which these communities indicated to us, we get a traffic model.At the same time, we studied bow to use this traffic model in the future networks to dynamically allocate bandwidth resources, then we propose a new kind of EPS architecture based on SDN, on this platform, we can deploy our strategy through it＇s programmable interface.Finally, we designed an experiment to test the performance of our dynamic strategy, and the result shows that our method enables bandwidth utilization has been greatly improved.
