| DC 欄位 |
值 |
語言 |
| DC.contributor | 資訊工程學系 | zh_TW |
| DC.creator | 張致和 | zh_TW |
| DC.creator | Chi-He Chang | en_US |
| dc.date.accessioned | 2000-7-6T07:39:07Z | |
| dc.date.available | 2000-7-6T07:39:07Z | |
| dc.date.issued | 2000 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=87325045 | |
| dc.contributor.department | 資訊工程學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 將一部熱門影片以廣播的型式播送至用戶端，可讓多數的用戶共享頻道以減少頻道的使用量。一類新的廣播策略是將一部影片切成等長度的數個片斷, 在伺服端利用多個頻道分別以特定的週期傳送這些片斷, 以大幅縮短用戶端的等待時間，其中Fast Broadcasting scheme（FB scheme）和 Pagoda Broadcasting scheme (PB scheme ) 便是這類策略的代表。 若使用k個頻道來廣播一部片長為D的熱門影片，FB scheme將可減少用戶端的最大等待時間至O(D / (2^k) ) 的程度, 而PB scheme 的最大等待時間則為 O(D / (5^(k/2)))。
在這篇論文當中，我們提出了一種新的頻道配置策略 Recursive Frequency-Splitting scheme ( RFS scheme), 以一種簡單而有系統的方式來配置頻道, 而且更能有效的利用頻寬, 大幅縮短用戶端的等待時間。另外我們也對這類問題的最大等待時間的下限做了一些分析和討論。 | zh_TW |
| dc.description.abstract | One way to broadcast a popular/hot video is to let multiple users share a few channels.
The stress on the scarce channels can be alleviated without sacrificing viewer
waiting time.
One common approach is to partition the video into fixed-length segments,
which are broadcast on several channels periodically.
Two representative approaches are the Fast Broadcasting scheme
and the PAGODA scheme , which can broadcast a video using
k channels by having new-coming viewers to wait no longer than O(D/2^k) and O(D/5^(k/2)) time, respectively, where D is the length of the video.
In this paper, we propose a new scheme, called Recursive Frequency-Splitting (RFS),
that significantly improves over existing schemes in terms of viewer waiting time.
Some lower bounds on the waiting time are also developed. | en_US |
| DC.subject | 數位視訊撥放 | zh_TW |
| DC.subject | 有線電視 | zh_TW |
| DC.subject | 寬頻網路 | zh_TW |
| DC.subject | 廣播 | zh_TW |
| DC.subject | 排程 | zh_TW |
| DC.subject | 隨選視訊 | zh_TW |
| DC.subject | Digital Video Broadcasting | en_US |
| DC.subject | Cable TV | en_US |
| DC.subject | Broadband Networks | en_US |
| DC.subject | Broadcasting | en_US |
| DC.subject | Scheduling | en_US |
| DC.subject | Video-On-Demand | en_US |
| DC.subject | VOD | en_US |
| DC.title | 一個適用於熱門視訊服務之遞迴頻率分割廣播策略 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | A Recursive Frequency-Splitting Scheme for Broadcasting Hot Videos | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |