CDN is a kind of effective technology for content processing and distribution and can improve the network performance. However, the development and application
<正>With the commercialization of 4G standards,the R&D of 4G standard has come to an end.The technical innovation will continue in the development of the next g
Along with the rapid development of social networks, social network worms have constituted one of the major internet security problems. The root of worm is the