2020/07/27 by Lalhruaizela Chhangte, Emanuele Viterbo, Chhangte, Lalhruaizela +5
Computer Science · Engineering · #Advanced Wireless Network Optimization #Caching and Content Delivery #Cooperative Communication and Network Coding #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI)
paper · pdf · doi:10.48550/arxiv.2007.13797
openalex publication_date 2020/07/27 · openalex created_date 2022/07/19 · openalex updated_date 2026/07/28
HTTP based video streaming has become the de facto standard for video content\ndelivery across different video streaming services. However, video content\ndelivery continues to be challenged at the wireless edge by inadequate and\nhighly variable bandwidth. In this paper, we describe WiCode, a platform that\nimproves HTTP based video content delivery at the WiFi edge. WiCode uses coded\ndelivery at the WiFi AP to reduce data transmissions in order to improve the\nperceived performance of video streaming at the users. WiCode performs index\ncoding on video segments to reduce the number of bits transmitted. Further, it\nalso performs index coding on UDP packets that are retransmitted to reduce the\nnumber of bits transmitted. This paper describes the design and implementation\nof WiCode, and the practical gains achievable due to employing coded delivery\nin a real system taking into account the overheads introduced by WiCode. The\nWiCode module at the client side is a browser plugin that does not require any\nclient side device configuration changes. We also show the effect of variable\nand fixed length segment size on the perceived performance of WiCode.\n