Offline Downloading in China: A Comparative Study

摘要: Although Internet access has become more ubiquitous in recent years, most users China still suffer from low-quality connections, especially when downloading large files. To address this issue, hundreds of millions China's have resorted to technologies that allow for ``offline downloading'', where a proxy is employed pre-download the user's requested file and then deliver at her convenience.In paper, we examine two typical implementations offline downloading: cloud-based approach smart AP (access point) based approach. Using large-scale dataset collected major system comprehensive benchmarks popular APs, find approaches are complementary while also being subject distinct performance bottlenecks. Driven by these results, design implement proof-of-concept middleware called ODR (Offline Downloading Redirector) help get rid bottlenecks.We feel broad applicability other areas world lack broadband penetration. By deploying technologies, coupled with our proposed middleware, experiences many parts can be improved.