Hung-Chang Yang

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A popular video can be broadcast by partitioning the video into segments, which are broadcast on several channels simultaneously and periodically. This method allows multiple users to share channels, leading to higher bandwidth utilization. Previous studies mainly focus on reducing viewers’ waiting time. This work studies another important issue, namely(More)
Efficient data broadcasting is independent of request arrivals, and is thus highly promising when transmitting popular videos. A conventionally adopted broadcasting method is periodic broadcasting, which divides a popular video into segments, which are then simultaneously broadcast on different data channels. Once clients want to watch the video, they(More)
With the growth of broadband networks, video-on-demand (VoD) has become realistic. Many significant broadcasting schemes have been proposed to reduce the viewers' waiting time. However, clients are required to receive video segments from all channels altogether. This disregard incurs more buffer requirements. To escape from this constraint, we propose a(More)
One way to broadcast a popular video is to partition the video into segments, which are broadcast on several streams periodically. The approach lets multiple users share streams; thus, the stress on scarce bandwidth can be alleviated without sacrificing viewers' waiting time. One representative approach is the staircase broadcasting (SB) scheme, which can(More)
With the growth of broadband networks, Video-on-Demand (VoD) has become realistic. Many significant broadcasting schemes have been proposed to reduce the bandwidth requirements for stored popular videos, but they cannot be used to support live video broadcast perfectly. Herein, we propose a new broadcasting scheme, called the Adaptive Live Broadcasting(More)
One way to broadcast a popular video is to partition the video into segments, which are broadcasted on several streams periodically. The approach lets multiple users share streams; thus, the stress on the scarce bandwidth can be alleviated without sacrificing viewers’ waiting time. One representative approach is the Fast Broadcasting (FB) scheme. The scheme(More)