2008/10/12 by Chunxi Li, Li, Chunxi, Changjia Chen +1
Computer Science · #Advanced Data Storage Technologies #Caching and Content Delivery #FOS: Computer and information sciences #Networking and Internet Architecture (cs.NI) #Peer-to-Peer Network Technologies #cs.NI
paper · pdf · doi:10.48550/arxiv.0810.2134
9 pages, 11 figures
arxiv created 2008/10/12 · openalex publication_date 2008/10/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A protocol named Threshold Bipolar (TB) is proposed as a fetching strategy at the startup stage of p2p live streaming systems. In this protocol, chunks are fetched consecutively from buffer head at the beginning. After the buffer is filled into a threshold, chunks at the buffer tail will be fetched first while keeping the contiguously filled part in the buffer above the threshold even when the buffer is drained at a playback rate. High download rate, small startup latency and natural strategy handover can be reached at the same time by this protocol. Important parameters in this protocol are identified. The buffer progress under this protocol is then expressed as piecewise lines specified by those parameters. Startup traces of peers measured from PPLive are studied to show the real performance of TB protocol in a real system. A simple design model of TB protocol is proposed to reveal important considerations in a practical design.